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Welcome, fellow regulator!
Greetings and salutations! You have reached The Liquidity Coverage
Ratio Homepage, a humble corner of the World Wide Web devoted to one
of the cornerstones of modern banking supervision: the
Liquidity Coverage Ratio, or LCR for short. Whether you
are a treasury analyst, a curious student, or simply someone who enjoys
reading regulatory documents on a rainy afternoon, you have come to the
right place.
1. What is the Liquidity Coverage Ratio?
The Liquidity Coverage Ratio (LCR) is a regulatory requirement
introduced under the Basel III framework. It is designed to
ensure that a bank holds a sufficient stock of unencumbered
High-Quality Liquid Assets (HQLA) that can be converted into
cash, easily and immediately, to meet its liquidity needs over a
30 calendar-day stress scenario.
In simpler terms: if everything goes wrong for one month, can the
bank still pay its bills using only its safest, most liquid assets?
The LCR answers that question with a single number.
☞ In one sentence:
The LCR forces banks to hold enough liquid assets to survive a 30-day
liquidity crisis without help from the central bank.
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2. The Formula
The mathematics of the LCR are as elegant as they are unforgiving:
A bank is compliant when its LCR is at least 100%. In other
words, it must hold at least one dollar of HQLA for every dollar
of expected net outflow during a stressed month. Many supervisors
expect banks to operate well above this floor in normal times so that
the buffer can be drawn down during periods of actual stress.
3. High-Quality Liquid Assets (HQLA)
Not all assets are created equal. The Basel framework sorts HQLA into
tiers, applying a haircut to less liquid categories:
| Tier |
Examples |
Haircut |
Cap |
| Level 1 |
Cash, central-bank reserves, sovereign debt of high credit quality |
0% |
No cap |
| Level 2A |
Certain sovereign / agency / multilateral debt; high-grade covered bonds |
15% |
≤ 40% of HQLA |
| Level 2B |
Qualifying corporate debt securities, certain equities, RMBS |
25% – 50% |
≤ 15% of HQLA |
Note: To count as HQLA, an asset must also be unencumbered, free
of legal restrictions, and managed by the treasury function with the
clear and sole intent of being used as a source of contingent funds.
4. Net Cash Outflows: the Denominator
The denominator of the LCR represents what the bank would lose, on a
net basis, during a 30-day stressed period. It is computed as:
The 75% cap on inflows is crucial: it forces a bank to hold a
minimum HQLA buffer equal to at least 25% of its outflows, even
if its expected inflows would in theory cover the rest. Regulators do
not want banks to depend on counterparties paying them back on time
during a crisis — because in a crisis, they often won't.
Each cash-flow line is multiplied by a prescribed run-off rate:
| Liability / Inflow |
Assumed Rate |
| Stable retail deposits (insured, transactional) |
3% – 5% |
| Less-stable retail deposits |
10%+ |
| Operational wholesale deposits |
25% |
| Non-operational wholesale (corporate) |
40% |
| Non-operational wholesale (financial counterparties) |
100% |
| Undrawn committed credit lines (retail) |
5% |
| Undrawn committed liquidity lines (financial) |
100% |
5. A Worked Example
Consider Acme National Bank, a small fictional institution. Its
balance sheet (in millions of dollars) is summarised below.
| Step 1 — HQLA Stock |
|---|
| Cash & central-bank reserves (Level 1) | $ 200 | × 100% = 200 |
| Government bonds (Level 1) | $ 300 | × 100% = 300 |
| High-grade covered bonds (Level 2A) | $ 100 | × 85% = 85 |
| Total HQLA | | 585 |
| Step 2 — Outflows under stress (30 days) |
|---|
| Stable retail deposits ($2,000 × 5%) | | 100 |
| Wholesale corp. deposits ($600 × 40%) | | 240 |
| Undrawn liquidity lines ($150 × 100%) | | 150 |
| Total Outflows | | 490 |
| Step 3 — Inflows (capped at 75% of outflows) |
|---|
| Performing loan repayments due | | 120 |
| Cap: 75% × 490 = 367.5 ⇒ inflows used | | 120 |
| Net Outflows = 490 − 120 | | 370 |
Putting it all together:
Acme National Bank is comfortably compliant, holding 1.58 dollars
of HQLA for every dollar of stressed net outflow. Pop the champagne!
6. A Brief History
| Year | Milestone |
|---|
| 2008 | Global Financial Crisis exposes banks' chronic short-term funding fragility. |
| 2010 | BCBS publishes the first Basel III package, including a draft LCR. |
| 2013 | Final LCR standard published in January. |
| 2015 | LCR begins phase-in at 60% in many jurisdictions. |
| 2019 | Full 100% requirement applies in most Basel-member jurisdictions. |
| 2020 | During the COVID-19 shock, supervisors explicitly allow LCR buffers to be drawn down. |
7. Frequently Asked Questions
Q. Is the LCR the same as the Net Stable Funding Ratio (NSFR)?
A. No. The LCR is a short-term (30-day) liquidity measure.
The NSFR addresses structural liquidity over a one-year horizon.
They are complementary cousins, not twins.
Q. What happens if a bank's LCR falls below 100%?
A. It must promptly notify the supervisor and present a remediation
plan. Falling below 100% is permitted in periods of actual stress —
the buffer exists precisely to be used.
Q. Does the LCR apply to every bank?
A. The Basel standard targets internationally active banks, but
most jurisdictions apply some form of it to all but the smallest
institutions, sometimes with proportionality adjustments.
8. Useful Links
Disclaimer: This page is for educational purposes only. It is
not legal, regulatory or financial advice. Always consult the official
texts of your competent authority. Run-off rates and definitions are
simplified for clarity and may vary by jurisdiction.
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