1 min readWarningEBA reporting framework 4.2Updated 10 November 2026

Own funds requirements cannot be negative (C 21.00, EBA rule v3779_s)

A warning in the own funds and capital requirements return (COREP own funds), on template C 21.00, market risk: standardised approach for position risk in equities.

The rule in plain words

Own funds requirements cannot be negative.

EBA checks it for nine rows, from equities in trading book (0010) to scenario matrix approach (0130). And on 25 sheets, from total (0001) to euro area (0044). That makes 225 checks. A failure names the one that failed.

How the Line4 Check report words itShow

The first of its checks, word for word as the report shows it when it fails. The others read the same, with their own column, row or sheet.

Own funds requirements: Specific risk, Croatia >= 0

What to do if your filing fails it

  1. 01Open the template below and find the cells the rule reads.
  2. 02Look for a value with the wrong sign in these cells, such as an amount entered as a negative number.
  3. 03EBA compares the values exactly here: there is no rounding tolerance.
  4. 04It runs only when your filing indicators mark C 21.00 as reported.
  5. 05This is a warning. It does not stop the filing on its own, but your authority may ask you to explain it.

The cells it reads

Market risk: standardised approach for position risk in equities (C 21.00)

Rows

  • 0010EQUITIES IN TRADING BOOK
  • 0020General risk
  • 0050Specific risk
  • 0090Additional requirements for options (non-delta risks)
  • 0100Simplified method
  • 0110Delta plus approach - additional requirements for gamma risk
  • 0120Delta plus approach - additional requirements for vega risk
  • 0125Delta plus approach - non-continuous options and warrants
  • 0130Scenario matrix approach

Column

  • 0060Own funds requirements

Sheets

  • 0001Total
  • 0004Bulgaria
  • 0006Czech Republic
  • 0007Denmark
  • 0013Hungary
  • 0021Poland
  • 0023Romania
  • 0027Sweden
  • 0028United Kingdom
  • 0029Albania
  • 0030Japan
  • 0031Macedonia
  • 0032Russian Federation
  • 0033Serbia
  • 0034Switzerland
  • 0035Turkey
  • 0036Ukraine
  • 0037USA
  • 0038Norway
  • 0039Egypt
  • 0040Iceland
  • 0041Liechtenstein
  • 0042Other
  • 0043Croatia
  • 0044Euro Area

A worked example

The first of its checks, with simple numbers.

What the rule then expects

Specific risk, own funds requirements must then be at least 0.

0Passes
-100Fails

A file that reports 0 passes. One that reports -100 fails, by 100.

The numbers are illustrative.

Show the rule as writtenShow

EBA's formula, as written out for the first of its checks. Cells are written as {template, row, column, sheet}.

{C_21.00,r0050,c0060,s0043} >= 0

The next five:

{C_21.00,r0120,c0060,s0021} >= 0{C_21.00,r0120,c0060,s0013} >= 0{C_21.00,r0120,c0060,s0027} >= 0{C_21.00,r0130,c0060,s0034} >= 0{C_21.00,r0010,c0060,s0006} >= 0

And 219 more, the same formula for the other cells it covers.

Every COREP own funds rule, by template

Checks like this one, run at the point of submission, are the first step to real-time supervision.