1 min readWarningEBA reporting framework 4.2Updated 10 November 2026

Cumulated Counterbalancing Capacity, overnight must equal the sum of its two parts (C 66.01.a, EBA rule v10660_m)

A warning in the additional liquidity monitoring metrics return (ALMM), on templates C 66.01.a, maturity ladder, total, overnight and higher maturity and C 66.01.b, maturity ladder, total, initial stock.

The rule in plain words

Cumulated Counterbalancing Capacity, overnight must equal cumulated Counterbalancing Capacity, initial stock plus net change of Counterbalancing Capacity, overnight.

All the values are on the total currencies sheet (0010).

How the Line4 Check report words itShow

Word for word as the report shows it when the rule fails.

C_66.01.A: Cumulated Counterbalancing Capacity, Overnight, Total currencies = C_66.01.B: Cumulated Counterbalancing Capacity, Total currencies + C_66.01.A: Net change of Counterbalancing Capacity, Overnight, Total currencies

What to do if your filing fails it

  1. 01Open the templates below and find the cells the rule reads.
  2. 02Add up the parts in your file and compare the result with the total.
  3. 03If they differ, a part is missing, a value sits in the wrong row, or the total is out of date.
  4. 04EBA allows a small rounding difference, worked out from the decimals each value is reported with.
  5. 05It runs only when your filing indicators mark C 66.01 as reported.
  6. 06This 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

Maturity ladder, total, overnight and higher maturity (C 66.01.a)

Rows

  • 1070Net change of Counterbalancing Capacity
  • 1080Cumulated Counterbalancing Capacity

Column

  • 0020Overnight

Sheet

  • 0010Total currencies

Maturity ladder, total, initial stock (C 66.01.b)

Row

  • 1080Cumulated Counterbalancing Capacity

Column

  • 0010Initial stock

Sheet

  • 0010Total currencies

A worked example

The first of its checks, with simple numbers.

Illustrative values
Cumulated Counterbalancing Capacity, initial stock1,200
Net change of Counterbalancing Capacity, overnight800
Together2,000
What the rule then expects

Cumulated Counterbalancing Capacity, overnight must then be 2,000.

2,000Passes
2,100Fails

A file that reports 2,000 passes. One that reports 2,100 fails, by 100.

The numbers are illustrative, reported to the unit, so the rounding tolerance does not change the result.

Show the rule as writtenShow

EBA's formula. Cells are written as {template, row, column, sheet}.

{C_66.01.a,r1080,c0020,s0010} = {C_66.01.b,r1080,c0010,s0010} + {C_66.01.a,r1070,c0020,s0010}

Every ALMM rule, by template

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