1 min readBlockingBank of England banking taxonomy 4.1.1Updated 11 November 2026

Market risk: ASA equity investment in funds (AS10 FUND): the own funds requirement calculated for equity investment in funds (OF91.10.01.01, Bank of England check boe_b0426)

A blocking check on the market risk: ASA equity investment in funds (AS10 FUND) template (OF91.10.01.01), in the own funds (PRA001) return.

Line4 Check runs it on the own funds (PRA001) return, proven on test files, check by check: the same outcome on all three test files of that return.

The rule in plain words

The own funds requirement calculated for equity investment in funds

In Market risk: ASA equity investment in funds (AS10 FUND) (OF91.10.01.01): every value in 16 rows (listed below) in column "Own funds requirements" (column 0010) must be zero or more.

What to do if your return fails it

  1. 01Open the table below and find the cells the rule reads.
  2. 02Look for a value below zero in these cells, such as an amount entered as a negative number.
  3. 03It runs only when your filing indicators mark OF91.10.01 as reported.
  4. 04This is a blocking check. A return that fails it is normally rejected, so fix it before you submit.

The cells it reads

Market risk: ASA equity investment in funds (AS10 FUND) (OF91.10.01.01)

Rows

  • R0010Total own funds requirements
  • R0020Sensitivity-based method (SBM)
  • R0030Of which: General Interest Rate Risk
  • R0040Of which: Credit spread risk for non-securitisations (CSR)
  • R0050Of which: Equity risk
  • R0060Of which: Commodity risk
  • R0070Of which: Foreign exchange risk
  • R0080Default risk capital (DRC)
  • R0090Third-party risk weighted approach for CIUs
  • R0100Sensitivity-based method (SBM)
  • R0110Of which: General Interest Rate Risk
  • R0120Of which: Credit spread risk for non-securitisations (CSR)
  • R0130Of which: Equity risk
  • R0140Of which: Commodity risk
  • R0150Of which: Foreign exchange risk
  • R0160Default risk capital (DRC)

Column

  • C0010Own funds requirements

Which returns it applies to

Line4 Check runs it on the own funds (PRA001) return on Bank of England banking taxonomy 4.1.1. The Bank of England applies it to own funds (PRA001) returns, as a blocking check.

The Bank’s own words and formula

The first paragraph of the plain words above is the Bank of England’s own, word for word, from its list of validations. The second spells out its formula, with each cell named from its templates.

Show the formulaShow

The Bank of England's formula. Cells are written as {t: table, r: row, c: column}.

{t: OF91.10.01.01, r: 0010; 0020; 0030; 0040; 0050; 0060; 0070; 0080; 0090; 0100; 0110; 0120; 0130; 0140; 0150; 0160, c: 0010} >= 0

Every PRA banking rule on OF91.10.01.01

Checks like this one, run at the point of submission, are the first step to real-time supervision. Line4 builds SupTech software for financial regulators that runs checks like these as each return arrives.