The rule in plain words
The start date used for the ES stress period modelling shall not be more recent than the reporting period start date declared for this submission (it must be in the past)
In Market risk: internal model approach 1A (MKR IMA1A) (OF24.01.01.01): "Total positions" in column "Start period" (row 0010, column 0190) must not be more than "Reporting period start date" in column "Header info" (row 0040, column 0010) in General information (OF700.00.01.01).
The headline gives only the template and the kind of check, because the rule is too long to say in a headline. The plain words above say all of it.
What to do if your return fails it
- 01Open the tables below and find the cells the rule reads.
- 02Compare the values in your return. If the first is bigger than it may be, one of them is wrong: check both before you change either.
- 03It runs only when your filing indicators mark OF24.01.01 and OF700.00.01 as reported.
- 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: internal model approach 1A (MKR IMA1A) (OF24.01.01.01)
Row
- R0010Total positions
Column
- C0190Start period
General information (OF700.00.01.01)
Row
- R0040Reporting period start date
Column
- C0010Header info
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 formulaShowHide
The Bank of England's formula. Cells are written as {t: table, r: row, c: column}.
{t: OF24.01.01.01, r: 0010, c: 0190} <= {t: OF700.00.01.01, r: 0040, c: 0010}Other rules on Market risk: internal model approach 1A (MKR IMA1A) (OF24.01.01.01)
- Market risk: internal model approach 1A (MKR IMA1A): a value must not be more than another (boe_b0899)Blocking
- The start date used for the ES stress period calculation shall be earlier in time than the end date (boe_b0890)Blocking
- Market risk: internal model approach 1A (MKR IMA1A): the total unconstrained expected shortfall for the previous day (boe_b0679)Blocking
- Market risk: internal model approach 1A (MKR IMA1A): the total unconstrained expected shortfall for the previous day (boe_b0678)Blocking
- Market risk: internal model approach 1A (MKR IMA1A): the total constrained expected shortfall over the previous 60 working days (boe_b0677)Blocking
- Market risk: internal model approach 1A (MKR IMA1A): the total unconstrained expected shortfall over the previous 60 working days (boe_b0676)Blocking
- Market risk: internal model approach 1A (MKR IMA1A): the total expected shortfall for the previous day (boe_b0552)Blocking
- Market risk: internal model approach 1A (MKR IMA1A): the total expected shortfall over the previous 60 working days (boe_b0551)Blocking
Every PRA banking rule on OF24.01.01.01
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.
