# Capital rulebook for the back-to-back funding capstone

As-of date: 19 September 2026. Amounts are USD unless stated otherwise. This is an educational comparator using the dated, current global Basel text below. It is not an opinion on implementation in any particular jurisdiction, regulatory permission, an accounting election, or evidence that a transaction is executable.

The rulebook contains the formulas, parameters, applicability decisions and rejection gates needed by the case. A verifier may compare reported results with these rules; it may not supply missing legal facts, undisclosed ratings, capital-allocation choices or additional rules. Labels have the following meanings:

- **Official rule** identifies a requirement in the cited source and paragraph.
- **Case assumption** identifies a fictional contractual, institutional or operational fact selected for this capstone. Its source is the case annex, not Basel.
- **Calculated illustration** applies stated assumptions to the official formula. It is neither a new regulatory parameter nor an observed transaction result.

## 1. Dated official source register

All Basel versions below were retrieved as current on 19 September 2026. The effective and update dates identify the precise version used. Announced 2028 versions are not used.

| Source key and official link | Effective date | Last update or edition | Use in this rulebook |
|---|---|---|---|
| [CRE50][CRE50] | 2019-12-15 | 2024-07-05 | CCR, netting, MPOR and current-exposure definitions |
| [CRE51][CRE51] | 2023-01-01 | 2020-03-27 | Method selection, EAD, incurred CVA, protection exceptions |
| [CRE52][CRE52] | 2023-01-01 | 2020-06-05 | SA-CCR formulas, classification, tenors, factors and aggregation |
| [CRE20][CRE20] | 2023-01-01 | 2025-06-10 | Bank counterparty risk weights and due diligence |
| [CRE22][CRE22] | 2023-01-01 | 2020-11-26 | Collateral, haircuts, netting, guarantees and credit derivatives |
| [CRE32][CRE32] | 2023-01-01 | 2020-03-27 | Effective-maturity rules incorporated by BA-CVA |
| [CRE55][CRE55] | 2023-01-01 | 2023-12-14 | Trading-book CCR and repo-collateral exception |
| [CRE56][CRE56] | 2023-01-01 | 2021-07-01 | Separately scoped SFT minimum-haircut floors |
| [MAR50][MAR50] | 2023-01-01 | 2020-07-08 | Reduced/full BA-CVA, SA-CVA approval and hedge treatment |
| [RBC25][RBC25] | 2023-01-01 | 2020-03-27 | CVA hedge designation, internal transfers and CCR recognition |
| [RBC20][RBC20] | 2023-01-01 | 2020-11-26 | Risk-based minimum capital ratios |
| [LEV20][LEV20] | 2023-01-01 | 2020-03-27 | Whole-bank leverage ratio and minimum |
| [LEV30][LEV30] | 2023-01-01 | 2020-03-27 | On-balance-sheet, derivative, written-credit and SFT exposure |
| [LEV40][LEV40] | 2023-01-01 | 2020-03-27 | G-SIB leverage buffer |
| [CAP50][CAP50] | 2019-12-15 | 2019-12-15 | Prudent-valuation boundary; not a universal KVA formula |
| [IFRS9][IFRS9] | Applicability must be established separately | Public 2026 issued edition | Failed derecognition and prevention of duplicate derivative recognition |

MAR50 equations use the adopted current text. The [official July 2020 CVA amendment][CVA2020] corroborates them, but its tracked deletions are not operative equations. A generated chapter PDF can be stale; the dated current chapter and adopted amendments control this exhibit.

## 2. Case annex: facts required before applying a formula

These assumptions select a runnable case. They do not assert that every bond TRS receives the same treatment.

1. Meridian is the reporting bank. Its reporting currency is USD. It owns an already-issued financial floating-rate note, U, with USD1,000,000,000 current principal/reference notional and exactly 20 years remaining at inception. The ordinary, unlevered single-name reference entity is AAA under the case's eligible-rating evidence. The issue's own rating and legal structure are recorded separately. A pricing curve labelled `AAA` does not establish either rating.
2. Meridian sells legal title to U to bank P for USD1,000,000,000 and receives U's total return under a 20-year TRS against financing payments. The sale advances the cash. The derivative does not advance a second principal. The five-year deployment uses those proceeds; its repayment does not terminate the separate remaining TRS obligations.
3. P is an eligible prudentially supervised bank in a jurisdiction permitting eligible external ratings. Its A-category ECRA rating excludes unsupported implicit government support; due diligence does not require an uplift. Its long-term bank default-risk weight is therefore 30%, under CRE20.16–20.20. This is P's risk weight, not U's supervisory factor.
4. The same-transferee sale plus full return retention fails IFRS9 derecognition in this case. Meridian retains U as an accounting asset and recognises the financing liability. IFRS9.3.2.15 and B3.2.16(o) govern this fact pattern; B3.2.14 prevents recognition of a second derivative for the same rights when that would double-count them. A management fair-value subledger is reconciled to the statutory accounts rather than relabelled as a statutory receivable.
5. A separate, explicitly fictional institutional/regulatory classification letter directs the capstone to measure the legal TRS under SA-CCR, with full contractual V, and under the derivative/written-credit leverage rules, while retaining the statutory asset/liability bridge. This is a case convention. IFRS9 by itself neither establishes nor prohibits that regulatory combination. Without that classification letter, the agent must determine whether the arrangement is financing/SFT, a separately measured derivative, or another exposure before claiming regulatory results.
6. The letter selects credit as the primary driver after an explicit sensitivity/volatility assessment. The plain return-receiver loses value when the reference spread widens, so its credit supervisory delta is -1. A required countercase allocates the same position to both credit and interest rate and adds the class add-ons. Credit-only is not inferred from the words `funding TRS`, and dual allocation is not claimed to be mandatory for every bond TRS.
7. The fixed-notional, spot-starting reference has S=0, E=20 and contractual M=20 initially. At year five, if unchanged, E=15 and M=15. There is no assumption that a quarterly coupon reset, VM exchange or settlement of the last quarter's return extinguishes the full future TRS value. The contractual financing advantage and any other surviving obligations must also reset to zero before the special full-reset maturity rule can apply.
8. The uncollateralised baseline has no CSA collateral. U, now legally held by P, is not collateral received by Meridian against P's TRS default. Accounting retention of U does not turn it into C or NICA. The margined countercase assumes enforceable bilateral daily cash VM against the full contractual mark, TH=0, MTA=0 and NICA=0. These are disclosed countercase assumptions, not attributes implied by a AAA reference.
9. The bespoke trade is assumed hard to replace under stress. Its selected MPOR is 20 business days, with no larger estimate or dispute-driven floor in the illustrated state. The case uses 250 business days per year. CRE52 requires an appropriate market convention and a floor/estimate assessment; it does not universally prescribe 250 days or infer MPOR solely from a 20-year tenor.
10. The baseline uses reduced BA-CVA. Full BA-CVA is a separate eligible-CDS branch. SA-CVA approval is absent. No bank-wide small-portfolio alternative is assumed.
11. A proposed five-year CDS references P, not U, and is supplied by a separately identified eligible protection seller H. Every recognition condition in section 6 must be evidenced. A separate MAR50 method annex uses H's normal SA-CCR exposure to measure hedge-provider CVA; it does not turn a CRE51.16 CCR exemption into zero CVA. H's rating, sector, netting, margin and exposure inputs are independent case data.
12. The secured-deployment collateral comparison is a banking-book secured loan under the comprehensive approach, with daily revaluation and a 20-business-day minimum holding period. It is not silently relabelled as a five-day trading-book repo to obtain smaller haircuts.
13. The pricing annex uses an explicit quarter-year illustration, beginning-of-quarter capital held during the interval, an end-quarter capital charge, a 10% annual all-equity hurdle, and 4% nominal annual OIS compounded quarterly. The dated transaction cash-flow schedule uses ACT/365F separately. These are desk assumptions, not Basel parameters. The full obligations extend to year 20; proceeds recovered from the deployment at year five are parked at OIS in the base economic action rather than assumed reinvested in EM risk.
14. For the pure-credit baseline, the fictional classification annex includes full effective written-credit notional W and elects the LEV30.35 exclusion of that same unoffset written-protection amount from the PFE population. It assumes no qualifying purchased-protection notional offset. RC, collateral adjustments, retained U and the deployment remain measured. Any result without the election or under dual allocation is a separately labelled countercase.

## 3. SA-CCR

### 3.1 Measurement order and legal netting

Official rule: CRE51.8 assigns non-CCP derivatives to SA-CCR when IMM approval is absent, and SFTs to their applicable collateral approaches. A derivative's notional is not a cash-loan exposure to insert directly into the comprehensive collateral formula. CRE51.3 also recognises the collateral poster's possible loss if a cash lender defaults and fails to return collateral.

Use the legal reporting-bank perspective throughout. Identify each enforceable netting set before calculating RC or add-ons. CRE50.15 and CRE52.1 require recognised legal netting; common purpose, common ownership or an economic hedge does not suffice. Trades without recognised netting are separate netting sets. Do not net P against H. An enforceable derivative MNA is not automatically an SFT netting permission or permission to net accounting assets.

V is the current value of all derivative transactions in the netting set under their actual contractual settlement and close-out terms. It includes both reference return and financing obligations. Authority: CRE50.26 and CRE52.10. An internal funding-opportunity mark is not a substitute for full V unless the enforceable contract and the case classification letter establish that valuation basis. Exposure measurement does not establish statutory recognition or day-one income.

### 3.2 Expanded exposure formulas

All collateral quantities below are after the applicable eligibility, valuation and haircut treatment. Received collateral is positive; posted collateral is negative in net C.

```text
alpha = 1.4

RC_unmargined = max(V - C, 0)
RC_margined   = max(V - C, TH + MTA - NICA, 0)

AddOn_aggregate = sum_over_allocated_asset_classes(AddOn_class)

if AddOn_aggregate > 0:
    multiplier = min(1,
                     0.05 + 0.95 * exp((V - C) /
                                      (2 * 0.95 * AddOn_aggregate)))
    PFE = multiplier * AddOn_aggregate
if AddOn_aggregate = 0:
    PFE = 0

EAD_unmargined = 1.4 * (RC_unmargined + PFE_unmargined)
EAD_margined_raw = 1.4 * (RC_margined + PFE_margined)
EAD_margined = min(EAD_margined_raw,
                  EAD_of_same_netting_set_calculated_as_unmargined)
```

Authority: CRE52.1–52.2, 52.10, 52.18–52.23 and 52.25. The zero-add-on branch is the algebraic PFE limit and avoids division by zero; it is not a separate capital exemption. Recalculate the unmargined comparator with its own maturity and collateral treatment before applying the cap.

| Input | Required meaning | Authority |
|---|---|---|
| TH | Positive threshold before P must provide VM to Meridian | CRE52.18–52.19 |
| MTA | Minimum transfer amount applicable to P | CRE52.18–52.19 |
| C | Net eligible haircut-valued collateral, including signed VM for a margined set | CRE52.10–52.11, 52.16–52.18 |
| NICA | Eligible independent collateral received, less independent collateral Meridian posted without bankruptcy-remote segregation | CRE52.16–52.17 |
| multiplier floor | 5%, when the aggregate add-on is positive | CRE52.22–52.23 |

Collateral Meridian posted into a segregated bankruptcy-remote account is excluded from NICA under CRE52.17. Noncash received collateral is haircut down and posted noncash collateral is haircut up under CRE52.11. Eligibility, legal seizure rights and the applicable holding period must be established before a number enters C.

A set is margined for SA-CCR only when the counterparty must post VM to the bank. An agreement under which only Meridian posts VM is unmargined for this purpose. Authority: CRE52.2.

Exact VM coverage does not generally eliminate exposure. RC is zero only if both `V-C <= 0` and `TH+MTA-NICA <= 0`. At `V=C` and positive add-on, the multiplier is exactly 1, not 0. Margin can shorten the PFE risk horizon while PFE remains positive. Excess eligible collateral can reduce the multiplier but not below 5%.

### 3.3 Primary driver, reference tenor and supervisory delta

CRE52.26–52.29 allocates a derivative by its primary driver, using sensitivities and underlying volatility for complex trades. Supervisors may require allocation to more than one class. Each allocated class needs its own appropriate sign and delta. CRE52.25 adds the class add-ons without cross-class diversification. CRE52.1 FAQ3 does not permit decomposing linear products into invented component trades merely to obtain a preferred treatment.

For interest-rate and credit positions:

```text
S_i = time in years until the referenced period starts, floored at 0
E_i = time in years until the referenced period ends
M_i = time in years until the latest date the derivative can remain active

SD_raw_i = (exp(-0.05*S_i) - exp(-0.05*E_i)) / 0.05
SD_i = max(SD_raw_i, ten_business_days_expressed_in_years)
d_i = domestic_currency_notional_i * SD_i
D_i = d_i * MF_i * delta_i
```

Authority: CRE52.30–52.34. S and E follow the underlying instrument when the derivative references another interest-rate or credit instrument. M is the derivative's maturity. For an already-started reference period S=0. The supervisory 5% decay is not OIS, a funding spread, a hazard rate or a rating inference.

A contract that genuinely settles all outstanding exposure and resets its terms so its entire fair value is zero can use time to that reset for the specified maturity treatment under CRE52.37(5). Daily VM or a floating-coupon reset does not establish that condition. The reference period used for supervisory duration is not shortened by margining or daily settlement, under CRE52.32 FAQ1.

For plain linear positions that are neither options nor CDO tranches, CRE52.39 prescribes delta +1 when value increases with the primary factor and -1 when it decreases. The factor for the credit branch is the spread, not the bond price. Thus the case's return-receiver delta is -1 for credit. Option volatility is used in an option-delta calculation, not multiplied into the linear add-on. An optional, tranched, leveraged, amortising or market-dependent-notional contract requires its actual CRE52 treatment; this case does not silently approximate it as the plain trade. Notional modifications are addressed by CRE52.37.

### 3.4 Maturity factor and MPOR

```text
M_floored_i = max(M_i, ten_business_days_in_years)
MF_unmargined_i = sqrt(min(M_floored_i, 1 year) / (1 year))
MF_margined_i   = 1.5 * sqrt(MPOR_i / (1 year))
```

Authority: CRE52.48–52.53. Use consistent time units. The one-year cap belongs to the unmargined maturity factor, not to reference supervisory duration, economic exposure, BA-CVA maturity or purchased-protection qualification.

| Bilateral condition | Official MPOR floor or adjustment | Authority |
|---|---|---|
| Non-centrally-cleared, daily margin | 10 business days | CRE52.50 |
| Non-daily margin | 9 business days plus the remargining period | CRE52.50 |
| More than 5,000 transactions in the relevant non-CCP set | 20 business days | CRE52.51(1) |
| Any illiquid collateral or OTC derivative not easily replaced | 20 business days | CRE52.51(2) |
| More than two qualifying long margin disputes in the previous two quarters | Double the otherwise applicable supervisory floor for the subsequent two quarters | CRE52.51(3) |
| Estimated MPOR exceeds the applicable floor | Use the estimate | CRE52.50 |

Stressed replaceability and dispute evidence are required. Centrally cleared exposures have separate CRE54 rules and are not this bilateral case. MPOR is the period from the market-observation date for the last answered collateral call through close-out and rehedging, under CRE50.19.

Calculated under the disclosed 250-business-day convention:

```text
MF_unmargined at M=20 years = 1
MF_margined at MPOR=20 BD  = 1.5*sqrt(20/250) = 0.4242640687
MF_margined at MPOR=10 BD  = 1.5*sqrt(10/250) = 0.3000000000
```

The 10-day value is a comparison only. It is not allowed for this hard-to-replace trade merely because its VM frequency is daily.

### 3.5 Supervisory factors and aggregation

The credit SF uses the reference entity's rating, while the eventual CCR risk weight uses the derivative counterparty's exposure class and rating. The two are separate inputs. An issue-specific guarantee or structure can make an issue rating differ from its reference entity rating. Authority: CRE52.61(3), CRE52.72 and CRE51.13.

| Class/subclass | SF | Correlation used in credit aggregation | Supervisory option volatility |
|---|---:|---:|---:|
| Interest rate | 0.50% | Not applicable | 50% |
| Credit single name AAA | 0.38% | 50% | 100% |
| Credit single name AA | 0.38% | 50% | 100% |
| Credit single name A | 0.42% | 50% | 100% |
| Credit single name BBB | 0.54% | 50% | 100% |
| Credit single name BB | 1.06% | 50% | 100% |
| Credit single name B | 1.60% | 50% | 100% |
| Credit single name CCC | 6.00% | 50% | 100% |
| Credit index investment grade | 0.38% | 80% | 80% |
| Credit index speculative grade | 1.06% | 80% | 80% |

Authority for every table entry: CRE52.72 Table 2. The plain trade uses only its SF and delta, not the option-volatility column.

Credit aggregation, under CRE52.60–52.64:

```text
EN_k = sum_of_D_i_for_reference_entity_k
 a_k = SF_k * EN_k

AddOn_credit = sqrt((sum_k(rho_k*a_k))^2
                    + sum_k((1-rho_k^2)*a_k^2))
```

Each index is a separate reference entity for aggregation. Trades on the same entity can offset through their signed effective notionals. Different entities retain idiosyncratic risk. For one entity, `AddOn_credit = abs(a_k)`: the 50% correlation is not a 50% discount on a standalone trade.

If the position is also allocated to interest rate, use one hedging set per currency. E assigns it to buckets less than one year, one to five years, or more than five years. Let DB1, DB2 and DB3 be the signed effective notionals summed within those buckets.

```text
EN_currency = sqrt(DB1^2 + DB2^2 + DB3^2
                   + 1.4*DB1*DB2 + 1.4*DB2*DB3 + 0.6*DB1*DB3)

Alternative when cross-bucket offsets are not recognised:
EN_currency = abs(DB1) + abs(DB2) + abs(DB3)

AddOn_IR = 0.005 * sum_currency(EN_currency)
AddOn_dual = AddOn_credit + AddOn_IR
```

Authority: CRE52.57 and 52.25. Driver-specific delta still matters for a portfolio even when the absolute value removes its sign for a single trade. A financing spread alone does not qualify for the special basis-transaction half-factor in CRE52.46/52.73.

### 3.6 Numbers that isolate the regulatory mechanics

This illustration uses a single plain AAA-reference USD1bn trade, S=0, E=M=20, credit-only allocation, no recognised incurred CVA loss, and **V=0**. The margined column additionally has C=TH=MTA=NICA=0 at that observation, so both columns have RC=0 and multiplier=1. V=0 is a deliberately isolated arithmetic state, not the capstone's assumed initial legal mark.

```text
SD_20 = (1-exp(-0.05*20))/0.05 = 12.6424111766 years
SD_15 = (1-exp(-0.05*15))/0.05 = 10.5526689452 years
```

| Calculated item | Unmargined | Margined, 20 BD |
|---|---:|---:|
| Credit add-on | 48,041,162.47 | 20,382,139.06 |
| SA-CCR EAD, 1.4 times add-on | 67,257,627.46 | 28,534,994.68 |
| CCR RWA at P's 30% weight | 20,177,288.24 | 8,560,498.40 |
| Minimum total-capital component, 8% of that RWA | 1,614,183.06 | 684,839.87 |
| IR add-on if separately allocated | 63,212,055.88 | 26,818,604.02 |
| Credit plus IR add-on in dual-allocation countercase | 111,253,218.35 | 47,200,743.08 |

These are calculations from CRE52 and the disclosed case inputs. The last two rows show how a different supported driver allocation changes the result. They are not a permission to choose whichever treatment is cheaper. Positive V, changed reference price, different CSA terms or additional trades require recalculation.

## 4. Default-risk weighting after SA-CCR

CRE51.11 aggregates EAD across P's netting sets. CRE51.12 permits only the recognised incurred CVA write-down, excluding offsetting DVA, to reduce default-risk exposure:

```text
E_default_P = max(0, sum_NS_of_P(EAD_NS) - incurred_CVA_loss_P)
CCR_RWA_P_without_protection = E_default_P * RW_P
```

That incurred-CVA deduction does not apply to the CVA-risk capital calculation. A management reserve or a projected CVA loss is not automatically the incurred write-down specified by CRE51.12.

CRE20.18 Table 6 supplies these bank ECRA weights:

| Eligible external bank rating | Base RW | Qualifying short-term RW |
|---|---:|---:|
| AAA to AA- | 20% | 20% |
| A+ to A- | 30% | 20% |
| BBB+ to BBB- | 50% | 20% |
| BB+ to B- | 100% | 50% |
| Below B- | 150% | 150% |

CRE20.16–20.20 requires eligible bank status, permitted/recognised external rating use, the appropriate support-adjusted rating and due diligence. Due diligence can move the exposure to a higher bucket, not a lower one. The short-term branch requires original maturity at most three months, or the specified goods-movement exposure at most six months, under CRE20.19. Daily VM or a short MPOR does not turn the 20-year TRS into that exposure.

When external ratings are unavailable or prohibited, use the applicable SCRA process rather than equating SCRA Grade A with external A. CRE20.21 gives base weights of 40%, 75% and 150% for SCRA Grades A, B and C. Its footnote 15 permits 30% for an unrated bank only if all Grade A requirements hold and CET1 is at least 14% and Tier 1 leverage at least 5%. CRE20.40 requires equivalent prudential supervision before a securities firm or other financial institution receives bank treatment. These are alternative applicability branches, not undisclosed fallbacks for missing case facts.

### 4.1 Source-elected other MDB treatment

[CRE20.13][CRE20] defines a multilateral development bank as an institution created by a group of countries to provide financing and professional advice for economic and social development projects. CRE20.14 grants a zero risk weight only to MDBs meeting the Committee's eligibility criteria. Treaty status, a high rating or a reconstruction mandate alone does not establish that eligibility. CRE20.10's separate zero-weight treatment names specific institutions; it is not a general exemption for supranational borrowers.

For other MDBs in jurisdictions permitting external ratings for regulatory purposes, CRE20.15 Table 5 supplies the following base weights:

| External rating of the MDB counterparty | Base RW |
|---|---:|
| AAA to AA- | 20% |
| A+ to A- | 30% |
| BBB+ to BBB- | 50% |
| BB+ to B- | 100% |
| Below B- | 150% |
| Unrated | 50% |

CRE20.15 also assigns 50% where the bank's jurisdiction does not permit external ratings. The current desk implements only the explicitly elected, rated branch. The published unrated row does not change the runtime's missing or unknown rating rejection. Its existing defaulted-unsecured treatment takes precedence over the performing-exposure table.

SUP_01 explicitly assumes that the fictional Veylan Basin Reconstruction Community is an other MDB under CRE20.13, with multiple sovereign members and an economic and social reconstruction financing and advisory mandate. The fictional reporting jurisdiction permits eligible external ratings. The Community's own current eligible rating applies; the source expressly denies CRE20.14 zero-weight eligibility. This classification is a disclosed fictional case assumption, not a finding of real regulatory permission, a member-state guarantee or recourse to member-state assets. It changes no borrowing authority, immunity waiver, collateral right or desk mandate.

The authored `institutional_terms.borrower_capital_treatment` compiles into the actual `case.parties` borrower's `capital_treatment`. The closed record contains `exposure_class: "other_mdb"`, `external_ratings_permitted: true`, `zero_weight_eligible: false` and resolvable `evidence` at the existing `fictional-institutional-authority` locator. The party remains `kind: "supranational"` and `regulated_bank: false`. Missing or unsupported treatment facts, treatment attached to a non-supranational party, or unresolved evidence must fail rather than select a fallback. A rating event changes the rating, not these classification facts.

The separate `capital.other_mdb_risk_weights` policy table is selected only after that actual party's treatment is validated. Borrower loans and claims use the current borrower rating. An issued lot uses its actual issuer's classification and its own current instrument rating; it cannot inherit an unrelated borrower's treatment. The original sovereign, corporate and bank mappings, the original thirty-two families and static numerical baselines remain unchanged. P's bank treatment and SA-CCR exposure are unaffected.

## 5. Comprehensive banking-book collateral

### 5.1 Eligibility before haircut

CRE22.2 governs banking-book standardised exposures. CRE22.9 and 22.26–22.29 require binding, enforceable documents in all relevant jurisdictions, necessary perfected rights, timely possession/liquidation, collateral operations and appropriate custody segregation. CRE22.7 requires that counterparty credit quality not have a material positive correlation with the CRM or its residual risks. Counterparty-issued or counterparty-related securities are ineligible collateral under that rule even if their rating looks strong.

For the rating-permitted branch, CRE22.34(3) and 22.45 require:

| Debt category | Eligibility threshold or conditions |
|---|---|
| Sovereign or PSE treated as sovereign | At least BB- |
| Other issuer, including banks and prudentially regulated financial institutions | At least BBB- |
| Short-term debt | At least A-3/P-3 |
| Unrated bank debt | Bank issue; recognised-exchange listing; senior debt; all equally senior rated issues at least BBB- or A-3/P-3; no information warranting a lower rating; supervisor satisfied with market liquidity |

CRE22.49's table uses **issue rating**. CRE22.34 footnote 5 permits the specified sovereign issuer-rating substitution when no issue rating exists. It does not supply a general spread-curve-to-rating mapping. Store price, issue rating, reference-entity rating, counterparty rating and their effective dates separately.

A B-rated sovereign security fails the BB- minimum. An ordinary non-sovereign security falling from BBB- to BB+ loses banking-book eligibility. The counterparty-related-issuer restriction is a separate failure regardless of either threshold. Material correlation analysis is required before using an otherwise eligible third-party issue.

In jurisdictions prohibiting ratings, CRE22.34(4) instead supplies sovereign/PSE, SCRA Grade A bank debt, investment-grade other-entity debt and qualifying securitisation conditions, with supervisory liquidity requirements. The table below gives that branch's haircuts separately. It is not legitimate to import the rating-permitted eligibility cliff into it without checking the applicable condition.

Eligible cash under CRE22.34(1) is cash, or the specified deposit/comparable instrument issued by the exposed lending bank, on deposit with that bank. This is not an exception allowing the borrowing counterparty's own bond. Third-party-bank non-custodial deposits assigned as unconditional, irrevocable security have their own third-party-bank-risk-weight treatment in footnote 4. A credit-linked-note exception does not mean an unfunded swap provides cash collateral. Resecuritisations are excluded under CRE22.35.

### 5.2 Exposure formula

For a single comprehensive-approach collateralised exposure without a recognised netting calculation:

```text
E_star = max(0, E_current*(1+H_e) - C_current*(1-H_c-H_fx))
RWA_collateralised = E_star * RW_counterparty
```

Authority: CRE22.46 and 22.48. `H_e`, `H_c` and `H_fx` are decimal fractions. The collateral and FX haircuts are additive inside the formula. E is the bank's current exposure, C is eligible collateral it receives; their roles follow the transaction direction. In a cash loan E is the cash exposure, including relevant accrued amounts. In a repo cash-borrower CCR calculation, the securities posted and cash received must be mapped from the borrower's perspective.

If protection has a maturity mismatch, apply CRE22.10–22.14 to the already haircut-adjusted collateral amount under CRE22.47. The comprehensive approach reduces exposure; it does not replace the counterparty's RW with the collateral issuer's RW. Risk-weight substitution belongs to guarantees/credit derivatives, or the separately selected simple collateral approach.

The simple approach is not used by the case. CRE22.18 and 22.32–22.33 generally impose a 20% RW floor, require collateral for the life of the exposure and revaluation at least every six months; CRE22.11 prohibits a maturity mismatch there. Importing a simple-approach risk weight into the comprehensive formula mixes methods.

### 5.3 Ten-business-day supervisory haircuts

The following percentages are the current CRE22.49 table, expanded so no row-spanning value is hidden. The basis is daily marking/remargining and a ten-business-day holding period. A security's residual maturity determines its row.

| Issue-rating band | Residual maturity | Sovereign | Other issuer | Securitisation |
|---|---|---:|---:|---:|
| AAA to AA- / A-1 | At most 1 year | 0.5% | 1% | 2% |
| AAA to AA- / A-1 | More than 1, at most 3 years | 2% | 3% | 8% |
| AAA to AA- / A-1 | More than 3, at most 5 years | 2% | 4% | 8% |
| AAA to AA- / A-1 | More than 5, at most 10 years | 4% | 6% | 16% |
| AAA to AA- / A-1 | More than 10 years | 4% | 12% | 16% |
| A+ to BBB- / A-2/A-3/P-3, including qualifying unrated bank debt | At most 1 year | 1% | 2% | 4% |
| Same band | More than 1, at most 3 years | 3% | 4% | 12% |
| Same band | More than 3, at most 5 years | 3% | 6% | 12% |
| Same band | More than 5, at most 10 years | 6% | 12% | 24% |
| Same band | More than 10 years | 6% | 20% | 24% |
| BB+ to BB- | All maturities | 15% | Ineligible | Ineligible |

For the rating-prohibited branch, CRE22.50 prescribes these ten-day percentages:

| Residual maturity | Sovereign RW 0% | Sovereign RW 20% or 50% | Sovereign RW 100% | Other investment-grade, non-securitisation | Senior securitisation, SA RW below 100% |
|---|---:|---:|---:|---:|---:|
| At most 1 year | 0.5% | 1% | 15% | 2% | 4% |
| More than 1, at most 3 years | 2% | 3% | 15% | 4% | 12% |
| More than 3, at most 5 years | 2% | 3% | 15% | 6% | 12% |
| More than 5, at most 10 years | 4% | 6% | 15% | 12% | 24% |
| More than 10 years | 4% | 6% | 15% | 20% | 24% |

Further CRE22.49–22.52 parameters:

| Item | Ten-day haircut/treatment |
|---|---|
| Main-index equity/convertible and gold | 20% |
| Other recognised-exchange equity/convertible | 30% |
| Eligible same-currency cash | 0% |
| Eligible fund | Highest haircut of a permitted holding unless the applicable look-through treatment permits a weighted average |
| Other exposure types in CRE22.50 | 30% |
| Exposure/collateral currency mismatch | 8%, under CRE22.52 |

CRE22.51 includes sovereign-treated PSEs and zero-RW MDBs in the sovereign column; other PSEs use the other-issuer column. Eligibility is not created merely because an instrument can be assigned a table haircut.

### 5.4 Scaling and stressed holding periods

```text
H_scaled = H_10 * sqrt((N_R + T_M - 1) / 10)
```

Authority: CRE22.59. N_R is business days between remargining for capital-market transactions or revaluation for secured transactions. T_M is the applicable minimum holding period in business days. Daily means N_R=1. Scale the applicable FX haircut too.

| Transaction | T_M | Required frequency basis | Authority |
|---|---:|---|---|
| Repo-style | 5 BD | Daily remargining | CRE22.57 |
| Other capital-market transaction | 10 BD | Daily remargining | CRE22.57 |
| Secured lending | 20 BD | Daily revaluation | CRE22.57 |

CRE22.58 requires 10 days for the specified mixed repo/other-capital-market netting sets, 20 days for the specified more-than-5,000-trade condition and illiquid collateral, and doubles the otherwise applicable minimum after qualifying persistent disputes. Apply the condition and observation period, not a chosen favourable label.

Calculated examples for a more-than-ten-year eligible AAA other-issuer security:

```text
Daily secured-loan haircut = 12%*sqrt(20/10) = 16.9705627485%
Daily ordinary repo haircut = 12%*sqrt(5/10) = 8.4852813742%
Daily secured-loan FX haircut = 8%*sqrt(20/10) = 11.3137084990%
```

These are prudential haircuts, not negotiated commercial financing haircuts. Record an executable lender quote or a labelled commercial-term assumption separately. These rules do not derive that market quote mechanically from collateral volatility, a rating label or the lender's credit spread. If commercial terms use a different haircut, record both. A margin call, collateral shortfall and capital requirement are different outputs.

For unmargined derivative collateral, CRE52.5 and CRE52.10 FAQ apply the relevant one-year horizon: use CRE22.59 with N_R equal to the longest remaining transaction maturity capped at 250 days and cap the resulting haircut at 100%. For margined derivative collateral, use the applicable MPOR treatment. A five-day repo haircut must not be copied unchanged into either derivative branch.

CRE22.60 permits zero-haircut repo treatment only at supervisory discretion and with all CRE22.36–22.37 conditions. These include core-market-participant status, eligible cash/zero-RW sovereign or PSE instruments on both sides, same currency, overnight or daily marks/margins, the four-business-day liquidation condition, proven settlement, standard documentation and enforceable immediate termination/seizure rights. AAA alone never establishes this exception.

### 5.5 The eligibility cliff and the trading-book repo exception

Holding E, collateral price, quantity, currency and counterparty RW fixed isolates the banking-book eligibility effect. For a cash exposure F with H_e=0 and no maturity mismatch:

```text
E_star_before = max(0, F - C*(1-H_c-H_fx))
E_star_after_loss_of_eligibility = F
Delta_RWA_eligibility_only = RW_counterparty*(F-E_star_before)
```

This is a calculated consequence of CRE22.34, 22.46 and 22.48. It is not merely a move to a larger eligible haircut. Repricing, extra collateral, margin failures and changed counterparty RW are separate scenario changes.

CRE22.54 applies a 30% exposure haircut when the bank lends or posts non-eligible instruments in an SFT. When it borrows non-eligible instruments, CRM may not be applied. Direction matters.

Known exception: CRE55.2 allows instruments included in the trading book to serve as collateral for trading-book repo-style transactions, subject to its rules. Conventional instruments outside banking-book collateral eligibility receive the haircut for non-main-index listed equities, currently 30%. Thus the banking-book BBB- cliff is not a universal trading-book repo cliff. CRE22.63 requires banking-book-eligible collateral for cross-book netting. This conventional-bond case does not invoke the separate cryptoasset exception.

CRE56.1–56.7 defines a different minimum-haircut-floor regime for specified non-centrally-cleared financing of non-prudentially-supervised counterparties against non-government collateral and specified collateral upgrades. Its exemptions and scope must be checked; an in-scope floor breach receives unsecured-loan treatment. Those floors are not the valuation haircuts above.

### 5.6 Recognised comprehensive SFT netting

If the case selects the supervisory-haircut MNA calculation, CRE22.62–22.65 requires enforceable default close-out, a single net amount and collateral liquidation/setoff rights. Otherwise calculate the transactions separately. CRE22.44 permits not recognising an MNA's netting benefit.

```text
netexposure   = abs(sum_s(E_s*H_s))
grossexposure = sum_s(E_s*abs(H_s))

E_star = max(0,
             sum_i(E_i) - sum_j(C_j)
             + 0.4*netexposure
             + 0.6*grossexposure/sqrt(N)
             + sum_fx(E_fx*H_fx))
```

Authority: CRE22.65. E_i and C_j are current cash/securities lent or posted versus received or borrowed under the agreement. E_s is the positive net current value for a security issuance; H_s is positive for the net-lent/repo-like direction and negative for the net-borrowed/reverse-repo-like direction. N counts issues except those with E_s below one tenth of the largest E_s. E_fx is the absolute net position in each non-settlement currency. The formula is not the leverage SFT current-exposure formula in section 8.4. A missing or invalid netting inventory does not justify evaluating the square-root denominator with an invented N.

## 6. Guarantees and CDS against P's default risk

### 6.1 Recognition requires contract and provider qualification

CRE22.9 and 22.71 require enforceable documentation, a direct claim on the protection provider, explicit exposure identification, irrevocability subject to the stated premium-payment exception, and unconditional timely payment. The seller cannot unilaterally cancel, shorten cover or increase its effective cost because the protected credit deteriorates.

Guarantees must meet CRE22.73, including pursuit of the guarantor without first suing the original obligor, an explicitly documented obligation and coverage of the relevant payment types. Uncovered interest, margin or other obligations remain uncovered.

A CDS must also satisfy CRE22.74:

- Covered events include failure to pay with an appropriate grace period, bankruptcy/insolvency and the required restructuring event.
- Protection persists through the relevant failure-to-pay grace period, subject to maturity treatment.
- Cash settlement has a reliable loss-valuation process and specified post-event valuation period.
- Any necessary consent to transfer the underlying obligation cannot be unreasonably withheld.
- Credit-event determination is clearly assigned and is not solely controlled by the protection seller; the buyer can notify/request determination.
- If the reference, deliverable or cash-settlement obligation differs from the protected obligation, CRE22.74(7) requires the permitted seniority relationship, the same legal obligor, and enforceable cross-default or cross-acceleration clauses. CRE22.74(8) imposes the parallel conditions for mismatched credit-event-trigger obligations.

A standard bond CDS referencing P may meet the CVA-name test while failing a required derivative-obligation, reference, cross-default or settlement test for CCR protection. A CDS referencing U hedges U's issuer default, not P's failure to perform the TRS.

If restructuring is omitted, CRE22.75 recognises only `0.60 * min(hedge amount, underlying obligation amount)` when all its other conditions hold. CRE22.74 footnote 9 contains a narrower exception for qualifying corporate obligations with the specified unanimous-amendment and insolvency-law conditions. The 60% amount must not be used if other eligibility requirements fail.

CRE22.76 separately governs eligible providers. Lower-risk-weight sovereigns, PSEs, MDBs, banks, securities firms and qualifying prudentially regulated financial institutions can qualify; other entities have the specified rating or investment-grade routes. The securitisation-provider case has additional conditions. Do not reuse the collateral BBB- eligibility rule as a universal provider test.

Only CDS and TRS providing guarantee-equivalent protection qualify under CRE22.77. That paragraph denies protection recognition where purchased-TRS receipts enter income without the offsetting deterioration in the protected asset. CRE22.78 denies CRM recognition for first-/nth-to-default basket protection. A tranche, retained first-loss amount or materiality threshold requires the specific treatment, not the simple proportional formula below. CRE22.79(2) assigns 1250% RW to the specified retained first-loss amount; CRE22.81 routes tranched seniority to securitisation rules.

### 6.2 Currency, maturity and substitution

For protection G in a different currency, CRE22.82–22.83 prescribes:

```text
G_after_FX = G * (1-H_FX)
```

The base H_FX is 8% on the ten-business-day/daily-marking basis, scaled under CRE22.59 as applicable. Do not apply a bond-price haircut to an unfunded CDS as if it were posted securities.

For a maturity mismatch, CRE22.10–22.14 and 22.72 prescribe:

```text
P = eligible protection after applicable haircuts/coverage adjustments
T = min(5, residual maturity of protected exposure in years)
t = min(T, residual effective maturity of protection in years)
P_a = P * (t-0.25)/(T-0.25)
```

When a mismatch exists, original protection maturity must be at least one year and residual maturity at least three months under CRE22.12. These conditions are not a blanket ban on every short, maturity-matched hedge. Use the longest possible exposure maturity, including grace periods, and the shortest effective hedge maturity after calls/incentives under CRE22.14. A seller call or strongly incentivised buyer termination can shorten recognised cover.

For current default-risk exposure E_default, with ordinary proportional cover and an eligible lower-risk-weight provider H:

```text
E_protected = min(E_default, P_a)
E_uncovered = E_default - E_protected
CCR_RWA_after = E_protected*RW_H + E_uncovered*RW_P
```

Authority: CRE22.23 and 22.79–22.80. This substitutes the protection provider's risk weight on the recognised covered part. It does not put CDS notional into C, set EAD to zero, or use U's AAA risk weight for P. CRE22.3 prevents a higher CRM capital requirement than the otherwise identical unmitigated exposure; CRE22.5 prevents double recognition of protection already reflected in the risk weight. Split different mitigation techniques and maturities under CRE22.8.

### 6.3 Five-year protection against the continuing twenty-year exposure

Calculated at inception, assuming all other conditions pass:

```text
Exposure residual maturity = 20 years
Protection residual maturity = 5 years
T = 5; t = 5
P_a/P = (5-0.25)/(5-0.25) = 1
```

The correct initial maturity factor is 1, not 5/20. That result means no initial **maturity haircut** under CRE22.13. It does not mean the hedge pays for defaults after its contractual expiry, covers every future EAD, qualifies under every framework or is available to roll at the same price.

For a fixed five-year hedge with no renewal, elapsed u years and continuing exposure longer than five years:

```text
P_a(u) = P(u) * (4.75-u)/4.75, for 0 <= u <= 4.75
```

| Elapsed time | Remaining hedge term | Maturity factor |
|---|---:|---:|
| Inception | 5 years | 1.0000000000 |
| Year 1 | 4 years | 0.7894736842 |
| Year 4 | 1 year | 0.1578947368 |
| Year 4.5 | 0.5 year | 0.0526315789 |
| Year 4.75 | 0.25 year | 0 |
| After year 4.75 while mismatch continues | Less than 0.25 year | No recognition |

At year five, the original twenty-year transaction still has a fifteen-year tail. Any renewal is a new, separately priced and executable action with new provider, eligibility and liquidity tests. A CDS sized to today's EAD may under-cover tomorrow's EAD. EAD includes PFE and is not itself a contractual amount payable on today's default.

### 6.4 CCR, CVA and market-risk eligibility are separate decisions

CRE51.16(1) gives zero separate CCR EAD to qualifying credit protection purchased against a banking-book or CCR exposure, while the protected exposure follows the applicable substitution rules. Do not extend that exception to every CVA hedge or every return-receiver TRS. The sold-banking-book-CDS exception in CRE51.16(2) has its own full-notional guarantee treatment and is not a generic TRS exemption.

There is no universal rule that a hedge must choose between CVA eligibility and CCR protection. RBC25.34 expressly permits the specified internal CVA/trading-book risk transfers also to hedge CCR when RBC25.21 is satisfied. That includes an exactly matched external hedge with an eligible third party and the referenced CRE22 conditions. An external hedge requires its own applicable CRM evidence. CVA acceptance of a same-sector/same-region proxy is not proof of default-risk CRM eligibility.

Maintain separate records for CVA designation, CCR protection, market-risk treatment and the hedge provider's own exposures. Recalculate the combined portfolio; do not add isolated relief figures or count one protection payoff twice against the same loss. CRE51.12's incurred-CVA deduction remains inapplicable to CVA capital.

## 7. Regulatory CVA capital

### 7.1 Scope, default method and units

MAR50.5 covers derivatives in both books except its QCCP/qualifying client-clearing exceptions. Fair-valued SFTs are included where the supervisor considers CVA exposure material. Zero accounting CVA does not itself remove an SFT from scope. MAR50.6 uses the bank's entire covered CVA portfolio plus eligible hedges.

MAR50.7 requires BA-CVA absent supervisory SA-CVA approval. MAR50.13 allows reduced or full BA at the bank's discretion, but every BA bank calculates reduced BA. The case baseline is reduced BA and recognises no hedge benefit within that formula.

MAR50.9 permits a separately elected whole-bank alternative for aggregate non-centrally-cleared derivative notional at most EUR100bn: CVA capital equals 100% of CCR capital, with no CVA hedge recognition and supervisory withdrawal rights. The USD1bn size of this trade does not establish the bank-wide threshold. This option is inactive in the case.

MAR50 capital is a capital requirement. It is not an accounting CVA reserve, a derivative asset or an annual expense. MAR50.1 converts it to RWA with factor 12.5. Regulatory CVA excludes Meridian's own default under MAR50.3.

### 7.2 Reduced BA-CVA, fully expanded

For each counterparty c and its netting sets NS:

```text
alpha = 1.4
rho_BA = 0.50
DS_BA = 0.65

For non-IMM:
    DF_NS = (1-exp(-0.05*M_NS))/(0.05*M_NS)
For approved IMM:
    DF_NS = 1

SCVA_c = (RW_CVA_c/1.4) * sum_NS_of_c(M_NS*EAD_NS*DF_NS)

K_reduced = sqrt((0.50*sum_c(SCVA_c))^2
                 + 0.75*sum_c(SCVA_c^2))

Capital_reduced = 0.65*K_reduced
RWA_CVA = 12.5*Capital_CVA
```

Authority: MAR50.14–50.15 and 50.1. The 0.65 scalar is outside K and applied once. The 50% correlation parameter has square 25%; the idiosyncratic coefficient is therefore 75%. Counterparty amounts are not simply added to obtain the portfolio requirement. All EADs are non-negative and use the specified CCR exposure method, not derivative notionals or the post-substitution risk-weighted amount. Do not subtract the CRE51.12 incurred CVA loss when determining CVA capital.

M_NS uses CRE32.46–32.54 for the non-IMM bank, explicitly **without the five-year cap**, under MAR50.15(2). For derivatives under an MNA, CRE32.49 specifies notional-weighted transaction maturity. The ordinary one-year floor and applicable short-term exceptions are not silently removed along with the cap. In the single twenty-year case M_NS=20 at inception, not 5, 1, the next VM date or the deployment horizon. For a surviving single unchanged contract it is 15 at year five.

The supervisory discounting rate in DF is 5%, under MAR50.15 footnote 3. It is independent of the case's 4% OIS and any funding or hazard curve. Simulation maturity in an approved SA-CVA branch likewise extends to the longest contract under MAR50.32(6); a risk-grid endpoint is not contractual truncation.

MAR50.16 Table 1 supplies every BA weight below:

| Counterparty sector | IG | HY or NR |
|---|---:|---:|
| Sovereigns, central banks and MDBs | 0.5% | 2.0% |
| Local government, government-backed non-financials, education and public administration | 1.0% | 4.0% |
| Financials, including government-backed financials | 5.0% | 12.0% |
| Basic materials, energy, industrials, agriculture, manufacturing, mining and quarrying | 3.0% | 7.0% |
| Consumer goods/services, transportation/storage, administrative/support services | 3.0% | 8.5% |
| Technology and telecommunications | 2.0% | 5.5% |
| Health care, utilities, professional and technical activities | 1.5% | 5.0% |
| Other | 5.0% | 12.0% |

These reflect the counterparty's spread volatility. P's financial-IG CVA weight is 5%, not its 30% default-risk weight and not U's 0.38% SF. When ratings are absent or not recognised, MAR50.16 permits internal-to-external mapping only with supervisory approval; otherwise the NR column applies. Market-implied spread curves do not automatically provide that approval or a rating.

Calculated for the single-counterparty V=0 illustration in section 3.6:

```text
DF_20 = (1-exp(-0.05*20))/(0.05*20) = 0.6321205588
```

| Calculated CVA item | Unmargined | Margined, 20 BD |
|---|---:|---:|
| SCVA_P, using 5% financial-IG weight and M=20 | 30,367,806.47 | 12,883,969.13 |
| Reduced BA capital, 0.65 times SCVA_P for one counterparty | 19,739,074.20 | 8,374,579.93 |

Those are standalone CVA-capital illustrations. They are not total bank capital, reserve amounts or incremental portfolio KVA.

### 7.3 Full BA-CVA hedge eligibility and formula

MAR50.17–50.19 requires an actual counterparty-credit-spread CVA mitigation purpose and management as such. Eligible instruments are single-name CDS, single-name contingent CDS and index CDS. A single-name hedge may reference c, a legally related entity, or an entity in the same sector **and** region. Legal relation means parent/subsidiary or common-parent subsidiaries. General P&L correlation or a hedge of the deployment loan is insufficient.

MAR50.26 prescribes the following r_hc, distinct from rho_BA:

| Relation of single-name hedge h to c | r_hc |
|---|---:|
| Directly references c | 1.00 |
| Legal relation | 0.80 |
| Same sector and region | 0.50 |

For the bought-protection hedges used in the case, B_h and B_i below are hedge notionals and M_h and M_i are actual remaining hedge maturities. RW_h is the MAR50.16 weight of the hedge's reference name, not the protection seller H. A contingent single-name CDS uses the current market value of its reference portfolio/instrument as notional under MAR50.23(3).

```text
DF_h = (1-exp(-0.05*M_h))/(0.05*M_h)
DF_i = (1-exp(-0.05*M_i))/(0.05*M_i)

SNH_c = sum_single_name_h_for_c(r_hc*RW_h*M_h*B_h*DF_h)
IH    = sum_index_i(RW_i*M_i*B_i*DF_i)
HMA_c = sum_single_name_h_for_c(
          (1-r_hc^2)*(RW_h*M_h*B_h*DF_h)^2)

K_hedged = sqrt((0.50*sum_c(SCVA_c-SNH_c)-IH)^2
                + 0.75*sum_c((SCVA_c-SNH_c)^2)
                + sum_c(HMA_c))

beta = 0.25
K_full = 0.25*K_reduced + 0.75*K_hedged
Capital_full = 0.65*K_full
RWA_CVA_full = 12.5*Capital_full
```

Authority: MAR50.20–50.25. The index term reduces the systematic component, not each counterparty's idiosyncratic component. HMA capitalises proxy mismatch. Beta creates a floor relative to reduced BA for the covered portfolio, not a promise of a 75% saving in bank capital. Over-hedging can increase risk; do not clip signed residuals or replace the formula with an assumed saving.

For an index with one sector and one credit-quality group, `RW_i = 0.7*Table1_RW`. For a mixed index, `RW_i = 0.7*name_weighted_average(Table1_RW)`. Authority: MAR50.24(4). The complete hedge inventory, allocation, signs and remaining terms must be recorded; offsetting or sold positions cannot be silently converted to positive bought-protection notionals.

There is no five-year exposure cap here. The five-year CDS enters its own hedge term at M_h=5 while SCVA for the twenty-year exposure uses M_NS=20. CRE22's initial P_a/P=1 does not set `SNH_c=SCVA_c`. Hedge roll-down, changed EAD and the hedge provider's exposure all remain in the recalculation.

### 7.4 Designation, hedge-provider charge and non-additive relief

MAR50.11 requires every external CVA hedge that is a covered transaction, whether eligible or ineligible as a hedge, to enter the CVA calculation for its own provider H. The hedge on P creates another counterparty relationship. H is not removed because the trade was purchased for risk reduction.

The case's explicit method annex calculates H's normal SA-CCR netting-set exposure for this MAR50 purpose and includes `SCVA_H` in the full and reduced portfolio calculations. It separately records any CRE51.16(1) exemption from a CCR charge. That case treatment is disclosed to avoid treating a default-risk exemption as automatic zero hedge-provider CVA. If the actual jurisdiction/supervisor requires a different method interaction, replace the annex with an evidenced treatment before reporting legal compliance.

All eligible external CVA hedges are excluded from the MAR10–MAR40 market-risk calculation under MAR50.11(2). Ineligible external CVA hedges remain trading-book instruments subject to that calculation under MAR50.11(3). Ineligibility removes a hedge benefit, not the underlying hedge risk. RBC25.30–25.33 corroborates the CVA/market-risk boundary.

For internal hedges, record the CVA-side position and opposite trading-book position and the risk/source documentation. MAR50.11(4)–(5) and RBC25.30–25.33 impose the specified external exact-match requirements, including for the identified curvature/default/residual-risk cases. Regulatory CVA designation is not an IFRS hedge-accounting designation.

The measured capital change is the difference between full portfolio results before and after the action, including H. Sum neither standalone counterparty reductions nor separate CCR/CVA relief estimates as though diversification, netting, provider risk and the capital constraint were linear.

### 7.5 SA-CVA is an approval-gated branch

The case has no SA-CVA approval and therefore does not produce an SA-CVA number. A hedge designation, convenient sensitivity model or market-risk SA permission cannot substitute for MAR50.7 approval.

To enable a different case, publish the approval, permitted scope, exposure models, monthly calculation/reporting capability, dedicated CVA risk-management function, validation and controls required by MAR50.28, 50.30 and 50.36. MAR50.32 requires market-implied PD term structures, market-consensus ELGD and simulated discounted exposures, including significant exposure/credit dependence and enforceable actual margin terms. Historical PD alone is insufficient; illiquid-name proxies must distinguish at least credit quality, industry and region. Its MPOR floors are `4+N` business days for the specified SFT/client-cleared transactions and `9+N` otherwise, where N is the remargining period.

MAR50.37 permits only whole transactions used and managed to mitigate CVA risk; an agent cannot split a trade into convenient eligible fragments. MAR50.38 permits counterparty-spread and exposure-component hedges. MAR50.39 excludes instruments ineligible for market-risk IMA, with tranched credit derivatives as an example. MAR50.44 assigns an eligible credit-spread delta hedge wholly to counterparty-spread or reference-spread risk, not both.

For clarity, the current aggregation kernel is reproduced below. It does not enable an SA-CVA calculation without the approved sensitivities and all applicable risk-class weight/correlation tables.

```text
WS_k_CVA = RW_k*s_k_CVA
WS_k_Hdg = RW_k*s_k_Hdg
WS_k = WS_k_CVA - WS_k_Hdg

R = 0.01
K_b = sqrt(sum_k_in_b(WS_k^2)
           + sum_k_in_b(sum_l_in_b_l_not_k(rho_kl*WS_k*WS_l))
           + 0.01*sum_k_in_b(WS_k_Hdg^2))

S_b = max(-K_b, min(sum_k_in_b(WS_k), K_b))

m_CVA = 1, unless increased by the supervisor
K_risk_class = m_CVA*sqrt(sum_b(K_b^2)
                         + sum_b(sum_c_not_b(gamma_bc*S_b*S_c)))

Capital_SA = sum_of_delta_risk_class_capital
             + sum_of_vega_risk_class_capital
RWA_CVA_SA = 12.5*Capital_SA
```

Authority: MAR50.41–50.45 and 50.51–50.53. The 1% hedge-disallowance term is inside the square root and applies to squared hedge sensitivities. Cross-bucket aggregation uses clipped S_b, not K_b in its place. Delta has IR, FX, counterparty credit spread, reference credit spread, equity and commodity classes; vega excludes counterparty credit spread. MAR50.48 requires vega even without options; MAR50.27 excludes default and curvature from SA-CVA. Risk weights and correlations absent from an approved annex are missing inputs, not zeros or values borrowed from SA-CCR.

## 8. Leverage: whole-book measurement

### 8.1 Accounting mapping and minimum

```text
L_bank = L_on_balance_excluding_separately_measured_derivatives_and_SFTs
         + L_derivatives + L_SFTs + L_off_balance_sheet

Leverage_ratio = Tier1_available / L_bank
Minimum_Tier1_for_leverage = 0.03*L_bank
```

Authority: LEV20.3–20.7. The 3% minimum applies at all times, not only when a quarter-end report is taken. LEV40.1–40.2 adds a G-SIB Tier 1 leverage buffer equal to 50% of its risk-based higher-loss-absorbency requirement. National/Pillar 2 constraints and actual applicability must be separately supplied.

LEV30.1–30.4 and 30.8–30.9 generally use gross accounting assets, with the specified separate derivative/SFT and provisions adjustments. A funding liability does not cancel a deployment asset. Collateral, guarantees and other CRM do not generally reduce leverage exposure unless the specific LEV rule allows it. LEV30.6 also addresses structures that inadequately capture leverage.

Compare identical opening books and cash uses:

| Funding structure | Owned U | Cash and deployment | Other required components |
|---|---|---|---|
| Repo borrowing | Retained, mapped once | Actual cash proceeds until spent, then deployment asset | Applicable adjusted SFT assets/current CCR, margin and other entries |
| Sale plus return-receiver TRS, failed derecognition | Retained under the case accounting conclusion | Same proceeds/deployment; recognised liability does not offset assets | Treatment in the explicit fictional regulatory classification letter, including derivative and written-credit components |
| Hypothetical valid derecognition | Remove only the asset actually derecognised | Actual sale proceeds/deployment still included | Derivative, applicable written-credit notional, collateral assets/gross-ups and other entries |

The repo cash borrower's liability is not an invented reverse-repo cash-loan asset. Conversely, a small current SFT counterparty gap does not remove the retained bond or the funded deployment. Reconcile each accounting asset once to its proper reporting component, then add any separately required regulatory exposure such as written-credit notional. Economic similarity is not authority to remove a required component.

Calculated implication: at U=USD1bn and deployment=USD1bn, those two continuing assets alone contribute USD2bn and require USD60m at the 3% minimum, before the rest of the bank and additional adjustments. Omitting U removes USD30m of that minimum erroneously. If the case classification also includes a full additional USD1bn written-credit amount, that amount alone adds another USD30m before any permitted offset. This is not a claim that Basel universally requires that combined treatment for every failed sale; the case classification controls.

### 8.2 Derivative exposure differs from risk-based SA-CCR

For proprietary bilateral derivatives under LEV30.14–30.16:

```text
RC_LEV = max(V - CVM_received + CVM_provided, 0)
PFE_LEV = AddOn_aggregate
D_LEV = 1.4*(RC_LEV + PFE_LEV)
```

Calculate per transaction unless bilateral netting qualifies under LEV30.17–30.20. CVM_received is qualifying cash VM not already reflected as a reduction of V in the accounts; CVM_provided is qualifying posted cash VM. Prevent duplicate accounting/RC deductions.

The leverage multiplier is fixed at 1 under LEV30.16(3)(a). Alpha remains 1.4, as in SA-CCR. The permitted margined maturity factor can still reduce the aggregate add-on. Ordinary noncash collateral or IM does not generally reduce leverage RC or its PFE multiplier. Written options remain included even if a risk-based exception would otherwise produce zero EAD. The specified client-clearing exception in LEV30.27 is not this proprietary TRS.

LEV30.22–30.25 requires all cash-VM conditions before deduction:

1. Received non-QCCP cash VM is not segregated and is available for use as the recipient's own cash.
2. Daily valuation and at least daily transfer, including the permitted next-trading-morning settlement against the previous close.
3. VM currency is specified by the derivative contract, MNA, CSA or CCP netting agreement.
4. The exchanged amount extinguishes full MTM exposure subject to the applicable threshold/MTA; non-disputed exchanged amounts have the stated recognition treatment during a dispute.
5. Derivatives and VM sit under a single enforceable MNA between the legal counterparties with explicit net settlement on a credit event and the required insolvency-law enforceability.

Received qualifying VM reduces RC, not PFE. The specified receivable for qualifying VM posted may be deducted while CVM_provided enters RC. LEV30.23 requires a gross-up if posting derivative collateral reduced accounting assets. LEV30.17–30.20 requires reasoned legal opinions, a single net legal obligation, supervisory acceptance and continuing review; walkaway clauses disqualify netting.

### 8.3 Written-credit effective notional and full-tenor offset

LEV30.30–30.32 adds the effective notional of written credit derivatives to derivative/collateral exposure because they provide credit protection on a reference entity. The definition includes arrangements beyond CDS and TRS. A bond total-return receiver can bear the issuer's credit loss and therefore write protection despite being called a receiver.

For the case's unlevered, no-offset, no-recognised-negative-FV-reduction state:

```text
W_LEV = effective_written_credit_notional = USD1,000,000,000
L_legal_TRS_components = D_LEV + W_LEV + applicable_collateral_adjustments
```

The legal classification must establish W, and effective notional must reflect any leverage/enhancement. LEV30.31 permits reduction for the specified negative fair value already reflected in Tier 1 and for purchased protection only when all its conditions hold. Do not assume either reduction from a management value alone.

A purchased-protection offset requires the same reference name, terms at least as conservative as the written protection, the specified seniority/optionality/events/reference conditions, no prohibited highly correlated provider, consistent Tier 1 fair-value adjustments, and no excluded client-clearing purchased leg. LEV30.33 adds same-legal-entity and pool/subordination restrictions. LEV30.34 prevents a TRS-protection offset where receipts enter income without the required deterioration reflected in Tier 1.

Most important tenor condition, LEV30.31(2): purchased protection's remaining maturity must be at least the written derivative's remaining maturity. There is **no five-year cap**. A five-year CDS cannot offset a twenty-year written-credit amount merely because its CRE22 maturity factor initially equals 1. A CDS on P also does not offset a written exposure referencing U's issuer.

LEV30.35 permits exclusion from the PFE netting set of the unoffset written-protection portion whose effective notional is included in leverage exposure. Record the election and recompute PFE on the permitted remaining population. Do not mechanically add full written notional and an avoidable full PFE charge; do not remove RC, collateral adjustments, unrelated trades or written notional under the guise of this exception.

The baseline election is stated in section 2, item 14. For its single pure credit position entirely represented by included, unoffset W, the selected exclusion removes that position's PFE contribution. In a dual-risk allocation, the classification/implementation annex must specify the permitted exclusion without assuming unrelated risk positions vanish. The comparison publishes both the included W and the recalculated PFE, not an undocumented net total.

### 8.4 SFT leverage

For a bank acting as principal, LEV30.37 requires adjusted gross accounting SFT assets plus current counterparty exposure. It does not apply SA-CCR alpha, a PFE add-on or CRE22 valuation haircuts to that current-exposure component.

```text
With qualifying SFT MNA:
    E_SFT_LEV = max(0, sum_i(E_i)-sum_i(C_i))
Without qualifying SFT MNA:
    E_SFT_LEV = sum_i(max(0, E_i-C_i))

L_SFT = adjusted_gross_accounting_SFT_assets + E_SFT_LEV
```

E_i/C_i are fair values of cash or securities lent/posted versus received. LEV30.37(2)(c) permits the specified cash-lent, own-netting-set exposure term to be zero where its gross cash receivable cannot net; the gross receivable itself remains. Received securities and triparty collateral follow the specific paragraph adjustments, not an assumption of unrestricted reuse.

Gross SFT cash receivable/payable netting under LEV30.37(1) requires the same counterparty, the same explicit final settlement date, enforceable normal-course and default setoff, and net/simultaneous or functionally equivalent settlement with the specified settlement-system and intraday funding arrangements. Open trades are not given a matching final date by assumption. Failed securities trades and matching cash legs must be separated when required.

Default close-out MNA netting under LEV30.38 is a separate permission for the **current CCR component only**. Its footnote 23 does not authorise netting gross accounting assets. Cross-book netting under LEV30.39 needs daily marking and banking-book-eligible collateral. LEV30.40 reverses the effect of SFT sale accounting and treats the SFT as financing for leverage. The limited agent/indemnity rules in LEV30.41–30.44 are not substituted for Meridian's principal funding position.

## 9. Capital ratios and the desk KVA annex

### 9.1 Official capital quantities

RBC20.1 prescribes simultaneous minimum ratios:

```text
CET1_available / RWA_bank >= 0.045
Tier1_available / RWA_bank >= 0.06
Total_capital_available / RWA_bank >= 0.08
```

Its footnote adds the 2.5% CET1 conservation buffer and possible countercyclical/systemic buffers. The leverage requirement separately uses Tier 1 and the leverage denominator. These different eligible-capital definitions and buffers cannot be replaced by one ratio to certify compliance.

RWA_bank must include all applicable credit, CCR, CVA, market and operational components and applicable constraints. Retained U and the deployment remain relevant; do not call their omission a portfolio allocation. CRE55.1 requires trading-book CCR separately from market risk. MAR50.1's `12.5*Capital_CVA` converts CVA capital into its RWA component. Consequently `0.08*RWA_CVA = Capital_CVA` for that minimum-total-capital arithmetic, not an extra second CVA charge.

### 9.2 Explicit synthetic pricing convention

Basel supplies exposure and minimum-capital requirements, not a universal KVA pricing formula. CAP50.1 distinguishes prudential valuation guidance from financial-reporting procedures; CAP50.10 calls for consideration of specified valuation adjustments but does not supply the following 10% capital-price rule.

For the capstone only, suppose the desk treats all allocated capital as equity and uses this minimum-only comparison:

```text
K_desk_book(t) = max(0.08*RWA_book(t), 0.03*L_book(t))

DeltaK_j = K_desk_with_action(t_(j-1))
           - K_desk_without_action(t_(j-1))

Delta_t = 0.25 year
t_j = j/4 years
D_OIS(0,t_j) = (1+0.04/4)^(-j)
h = 0.10 per year

Incremental_KVA_0 = h * sum_j(
                         Delta_t * D_OIS(0,t_j) * E[DeltaK_j])
```

Capital is sampled at the beginning of the quarter and held during that interval; the charge is paid at its end. Positive DeltaK is a cost, negative DeltaK an economic credit. The 10% is the desk's stated annual capital charge; the formula does not silently subtract OIS from it or reinterpret it as a Basel hurdle. The expectation requires published scenario weights or an explicitly deterministic path. It is not a hidden probability model.

The `max` is a fictional all-equity desk allocation comparing capital **levels**. It is not a Basel formula, does not replace simultaneous capital-quality tests and does not include undisclosed buffers. Compute with and without the action on the same opening portfolio; `max` of incremental standalone charges need not equal the difference of bank-level maxima.

A funding-only quantity such as

```text
K_funding_CCR_CVA_component(t)
    = 0.08*RWA_funding_CCR(t) + Capital_funding_CVA(t)
```

may be priced with the same disclosed interval/discount convention as a component illustration. Label it `standalone funding CCR+CVA component`, not all-in KVA, portfolio incremental capital or leverage-constrained capital. It omits other assets, portfolio aggregation and possibly a binding leverage constraint.

Project the selected obligations through year 20. A year-five deployment repayment changes the asset/cash portfolio but does not set the remaining funding exposure or KVA to zero. Capital can fall to zero for a closed position only after its contractual exposures, settlement receivables, written protection and collateral obligations have actually ended. A scheduled maturity date alone is insufficient if settlement or close-out remains unresolved.

CVA/CCR diversification, the hedge provider, collateral calls, written-credit notional and binding-constraint switches make action benefits non-additive. Each feasible action needs its own price, execution rights, margin/cash effects and recomputed capital path. A lower capital requirement frees capacity. It does not itself create a cash receipt, repay borrowing or realise a trading profit.

Expected KVA roll-down and any reserve release belong to the integrated reserve/P&L annex. They are not a second profit booking on top of the same change in the reserve. Structural action relief is the before/after path difference with market/time held as specified, not an expected release relabelled as a new trade gain.

## 10. AVA boundary

The separately dated [EU-style valuation-capital annex](valuation-capital-annex.md) supplies the selected core-method model-risk example and its applicability gates. It computes residual same-source uncertainty, applies Method 1 with the current 50% aggregation parameter and shows an incremental USD0.600m AVA component. The 90% prudent-value criterion, CET1 deduction and separately assumed replacement-equity KVA are stated there. This is not the bank's total AVA, a simplified-method calculation or a claim that the global Basel comparator automatically adopts EU law.

The design keeps prudent capital adjustments separate from management CVA/FVA/KVA reserves and deferred day-one amounts. The companion annex shows the deduction in available CET1 and prices replacement equity under the same disclosed 10% hurdle and 4% quarterly OIS convention. It does not automatically create P&L or a cash borrowing need. Same-source accounting prudence is credited only under the annex's applicable rule; unsupported management funding value or a duplicate failed-sale derivative is not made an in-scope accounting asset by this calculation.

## 11. Fail-closed input and decision gates

A missing input is reported as missing. It is never inferred from a curve label, trade nickname, optimistic tenor reset, prior verifier output or desired capital result. Where the official rule supplies a conservative non-recognition consequence, calculate that branch and label it; otherwise do not certify a numerical or legal conclusion.

| Gate | Required evidence/input | Treatment when absent or failed |
|---|---|---|
| Rules/version | As-of date, jurisdiction/comparator, dated sources, bank permissions | Use this dated global comparator only; no national-compliance claim or future-text substitution |
| Principal funding | Executed or explicitly fictional cash/title/principal obligations | No assumption that the derivative alone advances N; no financing result without cash mapping |
| Accounting/regulatory unit | Derecognition conclusion, statutory balance-sheet bridge, separate regulatory classification | Retain the established failed-sale accounting result; do not invent a separately recognised statutory derivative or unapproved regulatory mapping |
| Full legal V | Entire confirmation, financing/return terms, reset base, close-out/accrual/termination conventions, market inputs | No substitution of funding-only management benefit and no default V=0 |
| Reference and classification | Exact U and legal issuer, eligible rating evidence, S/E/M, fixed/variable notional, driver sensitivities/volatility, supervisory allocation | No assumed AAA SF, credit-only allocation, shortened tenor or plain-linear approximation |
| Counterparty RW | P/H legal identity, bank eligibility, ECRA/SCRA regime, rating/grade, due diligence/support treatment | No reference-rating substitution or automatic letter-rating conversion |
| Netting | Legal sets, eligible MNA, jurisdictional enforceability and legal opinions | No netting benefit; measure separate transactions under the applicable method |
| CSA/margin | VM direction, frequency, TH, MTA, collateral inventory, custody/segregation, NICA, full-mark coverage | No assumed margined treatment or zero RC; one-way bank-posting remains unmargined for SA-CCR |
| MPOR/holding period | Replaceability/liquidity, trade count, estimates, dispute history, business-day convention | No use of a lower daily-margin or repo floor without the facts; missing estimate blocks a claimed final exposure |
| Collateral recognition | Issue category/rating, legal rights, liquidity, correlation, current value, currency, residual maturity and actual marking frequency | Deny unsupported CRM; counterparty/related securities and ineligible issues give no received-collateral relief in the banking-book branch |
| MNA SFT route | Posted/received direction, issue-level positions, signed haircuts, N, currencies and agreement coverage | No invented netting count or derivative/SFT formula substitution |
| Credit protection | Specific protected exposure, events, grace periods, same-obligor/reference/trigger tests, cross-default, settlement, provider qualification, currency, notional and options | Deny unsupported CCR protection; tenor alone does not establish qualification |
| Protection roll-down | Actual original/residual maturity and future executed replacements | Apply the declining existing protection only; no assumed twenty-year roll or post-expiry payoff |
| CVA method | Bank-wide coverage, reduced/full election, supervisor approvals, sector/quality mapping | BA baseline; no SA-CVA or small-portfolio alternative by trade-level inference; MAR50 NR weights apply where its stated conditions require them |
| CVA hedge | Eligible instrument, actual managed purpose/designation, reference relation/region, complete hedge terms, provider H exposure and method annex | No full-BA hedge credit without evidence; retain the covered hedge's provider exposure and applicable market-risk treatment |
| Simultaneous hedge recognition | Separate CCR/CVA/market-risk tests and allocation | No blanket exclusivity ban, but no unsupported additive relief or duplicated payoff |
| Whole-book leverage | Opening accounts, retained U, cash/deployment mapping, funding liabilities, derivative/SFT components, margin assets/gross-ups, W and offset records | No RC/PFE-only comparison, automatic asset removal or claim that TRS dominates repo |
| LEV reductions | Qualifying cash-VM/netting evidence, Tier 1 negative-FV adjustment, same-name full-tenor purchased protection, explicit 30.35 election | No collateral/IM multiplier reduction, five-year notional offset or undocumented PFE exclusion |
| Capital and KVA | Whole-book RWA/L, available CET1/Tier1/total capital, buffers, with/without baseline, timing, hurdle, discounting, scenarios, terminal settlement | No compliance claim from minimum-only arithmetic; label standalone components; no assumed capital-as-cash or zero tail |
| AVA | [Valuation-capital annex](valuation-capital-annex.md), identified in-scope accounting unit, CET1 sensitivity, uncertainty inputs, same-source overlap and category scope | No AVA on a management-only mark, no simplified/core mixing, no whole-reserve offset or unqualified total-bank claim; missing applicability is not zero |

## 12. Minimum report required from an agent using this exhibit

The report must expose enough intermediate values to recompute each used branch without consulting a verifier:

1. The selected source date, jurisdiction/comparator, case classification and all departures from section 2, each labelled official rule or case assumption.
2. For each derivative netting set: full V, recognised collateral and haircuts, TH/MTA/NICA, S/E/M, notional/delta/SD/MF/SF, driver allocation, class add-ons, multiplier, RC, PFE and EAD. Show the unmargined cap comparator when used.
3. For collateralised lending/SFTs: direction, eligibility/correlation result, independent price and rating state, haircut table row, scaled haircut/FX, maturity adjustment, E_star, counterparty RW and RWA. Keep any trading-book exception separate.
4. For protection: qualifying exposure/events/reference/provider decision, adjusted P, T/t/P_a, protected/uncovered amounts and their RWs, plus residual-life and roll-down results. Record rejected protection rather than silently crediting it elsewhere.
5. For CVA: all counterparties including H, EAD/M/DF/sector weights, SCVA values, reduced BA, eligible hedge inventory, SNH/IH/HMA, full BA where selected, final capital and RWA. Identify the provider-CVA method annex and distinguish capital from the valuation reserve.
6. For leverage: an accounting-to-regulatory bridge, retained U, deployment/cash, derivative RC/PFE, written-credit W and every reduction, the 30.35 election, collateral gross-ups, SFT gross-assets/current-exposure treatment, other book components, L and Tier 1. Identify what actually changes between funding structures.
7. For KVA: official capital outputs first, then the separately labelled desk allocation, beginning-of-interval with/without capital path, discount factors, scenario convention, paid-at-end charge, horizon and terminal-settlement evidence. Separate standalone components, expected roll-down and priced structural action relief.
8. An explicit list of failed or missing gates, the application of [valuation-capital-annex.md](valuation-capital-annex.md) and the consequences for any claimed relief. Show its incremental-category boundary, CET1 impact and replacement-equity pricing separately. A plausible result is not a substitute for an unmet applicability condition.

[CRE50]: https://www.bis.org/committees/bcbs/basel-framework/standard/cre/50/inforce/2019-12-15/published/2024-07-05
[CRE51]: https://www.bis.org/committees/bcbs/basel-framework/standard/cre/51/inforce/2023-01-01/published/2020-03-27
[CRE52]: https://www.bis.org/committees/bcbs/basel-framework/standard/cre/52/inforce/2023-01-01/published/2020-06-05
[CRE20]: https://www.bis.org/committees/bcbs/basel-framework/standard/cre/20/inforce/2023-01-01/published/2025-06-10
[CRE22]: https://www.bis.org/committees/bcbs/basel-framework/standard/cre/22/inforce/2023-01-01/published/2020-11-26
[CRE32]: https://www.bis.org/committees/bcbs/basel-framework/standard/cre/32/inforce/2023-01-01/published/2020-03-27
[CRE55]: https://www.bis.org/committees/bcbs/basel-framework/standard/cre/55/inforce/2023-01-01/published/2023-12-14
[CRE56]: https://www.bis.org/committees/bcbs/basel-framework/standard/cre/56/inforce/2023-01-01/published/2021-07-01
[MAR50]: https://www.bis.org/committees/bcbs/basel-framework/standard/mar/50/inforce/2023-01-01/published/2020-07-08
[RBC25]: https://www.bis.org/committees/bcbs/basel-framework/standard/rbc/25/inforce/2023-01-01/published/2020-03-27
[RBC20]: https://www.bis.org/committees/bcbs/basel-framework/standard/rbc/20/inforce/2023-01-01/published/2020-11-26
[LEV20]: https://www.bis.org/committees/bcbs/basel-framework/standard/lev/20/inforce/2023-01-01/published/2020-03-27
[LEV30]: https://www.bis.org/committees/bcbs/basel-framework/standard/lev/30/inforce/2023-01-01/published/2020-03-27
[LEV40]: https://www.bis.org/committees/bcbs/basel-framework/standard/lev/40/inforce/2023-01-01/published/2020-03-27
[CAP50]: https://www.bis.org/committees/bcbs/basel-framework/standard/cap/50/inforce/2019-12-15/published/2019-12-15
[IFRS9]: https://www.ifrs.org/content/dam/ifrs/publications/html-standards/english/2026/issued/ifrs9.html
[CVA2020]: https://www.bis.org/publications/202007-standards-targeted-revisions-credit-valuation-adjustment-risk-framework.pdf