Arxo Findings Register · Arxo Law

ARXO-2026-0386 · Reported

Basel Framework: MAR21.58 FAQ1 vs MAR21.33(1)

The CTP index FAQ says 'at least 75%' while citing MAR21.33(1), which says 'more than 75%'; exactly 75% gets two different buckets.

Consequence

Position: Credit index CTP, constituents by weight: exactly 75% IG financials (bucket 3) and 25% other; CS01 = 100,000. Reading a: FAQ: at least 75% -> bucket 3, RW (Table 6) 8.0%, WS = 8,000. Reading b: MAR21.33(1): not more than 75% -> fallback (bucket 16, 13.0%) WS = 13,000. Difference: WS 5,000

Proposed correction

Clarify or correct the cited passage so that the rule and its references give one result for the stated case.

Issued by
Basel Committee on Banking Supervision
Act
Basel Framework MAR21 (in force 2023-01-01, published 2026-03-23)
Place
MAR21.58 FAQ1 vs MAR21.33(1)
Record
Discrepancy
Class
Text of the act
Where it arose
The text of the act
Arxo's conclusion
Confirmed
Official text
Unchanged at last check
Last checked
2026-10-31

Evidence

Contradiction within the text. Quotations are verbatim from the official material; translations are ours and marked.

should be assigned to a single specific delta sector bucket consistent with the characteristics of, at least, 75% of the index constituents (taking into account the weightings of that index), in accordance with MAR21.33(1).
Normative text · Basel Framework MAR21 (in force 2023-01-01, published 2026-03-23) · MAR21.58 FAQ1 vs MAR21.33(1) · Published 2026-03-23 · retrieved 2026-10-31 · SHA-256 702d93bcc11364c3ffc2c0c81eb0c5981d89544031c7ebc2a84605f86b22df28 · copy
Where more than 75% of constituents in that index (taking into account the weightings of that index) would be mapped to a specific sector bucket
Normative text · Basel Framework MAR21 (in force 2023-01-01, published 2026-03-23) · MAR21.58 FAQ1 vs MAR21.33(1) · Published 2026-03-23 · retrieved 2026-10-31 · SHA-256 702d93bcc11364c3ffc2c0c81eb0c5981d89544031c7ebc2a84605f86b22df28 · copy

How to check it without Arxo's tools

  1. Open Basel Framework MAR21 (in force 2023-01-01, published 2026-03-23) and find MAR21.58 FAQ1 vs MAR21.33(1). Compare the text with the quotation above. A copy is kept in this register: 702d93bcc11364c3-MAR21@2023-01-01~2026-03-23.txt (SHA-256 702d93bcc11364c3ffc2c0c81eb0c5981d89544031c7ebc2a84605f86b22df28, copy of the official file).
  2. The finding holds if the quoted passages read as shown and the comparison gives the result stated at the top of this page. If it does not, write to us with the record ID.

How this finding was made

AI models read the texts, built the examples and reviewed the findings.

Responsible institutions

Reported to

DateInstitutionChannelReference
2026-10-31Basel Committee on Banking Supervisione-mailhttps://mail.google.com/mail/u/0/#sent/KtbxLthRTjRNkqRtWGvxMWmXhVdckfWkGV

Responses

No response recorded.

History

  1. 2026-10-31Confirmed by Arxo
  2. 2026-10-31Entered in the register
  3. 2026-10-31Reported to Basel Committee on Banking Supervision (e-mail)

Cite this record

Arxo Law, Arxo Findings Register, ARXO-2026-0386, https://arxo.io/findings/ARXO-2026-0386/ (status as of 2026-10-31). Data: ARXO-2026-0386.json.