Every value in "Equities in trading book" in column "Total risk exposure amount" on 25 sheets must be zero or more (OF21.00.01.01, OF02.00.01.01, Bank of England check v3778_s)

The rule in plain words

What to do if your return fails it

1. 01Open the tables 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 OF21.00.01 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

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 plain words above spell out the Bank’s formula, with each cell named from its templates. In the Bank of England’s list of validations, word for word:

v3778_s: [OF21.00.01.01 (r0010, c0070, All sheets)] >= 0

Other rules on Market risk: standardised approach for position risk in equities (MKR SA EQU) (OF21.00.01.01)

Every PRA banking rule on OF21.00.01.01

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.