FRM Part II · FRM Exam Part II
Liquidity Stress Testing for FRM Part II
Liquidity stress testing projects cash inflows and outflows under severe but plausible shocks, then checks whether liquid assets and other counterbalancing capacity cover the gap over a set horizon. To solve questions, define the scenario, apply run-off and haircut assumptions, compute net outflow, and compare it with the buffer.
What this chapter covers
This chapter shows how a bank tests whether it can pay its obligations when funding dries up. You start with the purpose of stress testing and the types of liquidity risk. Then you build scenarios, project cash flows, apply behavioral assumptions, and measure the buffer against the shortfall. The chapter ends with regulation and governance.
The core logic is simple. Stress the cash flows, apply haircuts to assets, and compare the result with the survival horizon. Most questions ask you to compute a net outflow, a buffer, a ratio or a horizon, or to judge whether an assumption suits the scenario. You must also interpret the answer, not only calculate it.
The chapter links to other parts of the paper. It connects to the Liquidity and Treasury Risk Measurement and Management topic, where funding, contingency planning and transfer pricing sit. It also links to market risk through asset haircuts and market liquidity, and to credit risk through drawdowns on committed lines and counterparty behavior. Operational and current-issues material often adds context, such as digital bank runs and speed of deposit outflows.
Liquidity stress testing sits in the Liquidity and Treasury Risk topic, one of the six topics in the 80-question, 4-hour exam. Questions are applied and case-like, so you need both the calculation and the judgment. The material rewards structured thinking: the same steps of scenario, cash flow, buffer and horizon repeat in every question. Regulatory ratios such as the LCR and NSFR also give you precise, testable definitions. If you master the logic once, you can answer many different question styles and avoid losing marks on traps in definitions and assumptions.
Liquidity Stress Testing: topics in the order to study them
- 1Liquidity Risk Fundamentals and Stress Testing ObjectivesStart here to learn funding and market liquidity risk and why banks stress test; every later topic builds on these terms.
- 2Designing Liquidity Stress Test ScenariosScenarios set the shock. You need them before you can decide which cash flows and assets are affected.
- 3Cash Flow Projection and Behavioral AssumptionsOnce the scenario is set, you project inflows and outflows and apply run-off, rollover and drawdown assumptions.
- 4Liquidity Buffers, Counterbalancing Capacity and Survival HorizonThis compares the projected gap with available liquid assets and gives the survival horizon, the main numerical output.
- 5Regulatory Frameworks: LCR, NSFR and Supervisory Stress TestsWith the internal method clear, you can see how Basel ratios standardize the same ideas with fixed factors.
- 6Governance, Reverse Stress Testing and Use of ResultsFinish with how results feed limits, contingency funding and decisions, and how reverse stress testing works backward from failure.
How to prepare Liquidity Stress Testing
Study this chapter as one chain: shock, cash flows, buffer, horizon, then regulation and governance. Practice with numbers early, because most marks come from applying assumptions correctly.
- Read the fundamentals and write one-line definitions of funding liquidity risk, market liquidity risk and the objectives of stress testing.
- For each scenario type (idiosyncratic, market-wide, combined), list which funding sources and assets it hits and how fast.
- Practice building a simple cash flow ladder by time bucket. Apply run-off rates to deposits, rollover rates to wholesale funding and drawdown rates to committed lines.
- Compute buffers after haircuts, then net outflow, then survival horizon. Redo each calculation until you can do it without notes.
- Learn the LCR and NSFR formulas and thresholds, and the difference between their time horizons and purposes.
- Review governance: board oversight, frequency of tests, link to the contingency funding plan, and how reverse stress testing differs from a standard test.
- Finish with timed mixed questions on phone or paper. For every miss, note whether the error was a definition, an assumption or arithmetic.
Common mistakes in Liquidity Stress Testing
Applying haircuts to the wrong side of the calculation.
Fix: Apply run-off and drawdown rates to cash flows. Apply haircuts to assets in the buffer. Label each line before you calculate.
Confusing the LCR and NSFR.
Fix: Remember that the LCR covers a 30-day stress with liquid assets in the numerator. The NSFR covers stable funding over one year, as available versus required stable funding.
Treating all deposits as having the same run-off.
Fix: Check deposit type, insurance, customer segment and relationship before choosing a run-off rate.
Counting inflows at full value in stress.
Fix: Use the inflow assumptions stated in the question or framework. Under the LCR, inflows are capped at 75% of outflows.
Ignoring the time dimension in the survival horizon.
Fix: Work bucket by bucket. Track the cumulative gap against the remaining buffer and find the first bucket where it turns negative.
Mixing up standard and reverse stress testing.
Fix: A standard test starts with a scenario and finds the impact. A reverse test starts with an unacceptable outcome and finds the scenario.
Last-day revision: Liquidity Stress Testing
- Funding liquidity risk is the inability to meet obligations when due; market liquidity risk is the inability to sell assets without a large price impact.
- A stress test needs a scenario, cash flow projections, assumptions, a buffer and a horizon.
- Combined scenarios mix a firm-specific shock with a market-wide shock and are usually the most severe.
- Deposit run-off depends on type: insured retail deposits run off less than uninsured or wholesale deposits.
- Committed credit and liquidity lines create contingent outflows through drawdowns.
- Counterbalancing capacity is the stock of assets that can be sold, repo'd or pledged to raise cash. Apply haircuts to it.
- Survival horizon is how long the bank can meet net outflows before the buffer is exhausted.
- LCR = stock of high-quality liquid assets ÷ total net cash outflows over 30 days, and it must be at least 100%.
- NSFR = available stable funding ÷ required stable funding, and it must be at least 100%. It addresses a one-year structural horizon.
- Net outflows in the LCR equal outflows minus the lesser of inflows and 75% of outflows.
- Reverse stress testing starts from a failure outcome and works back to the scenarios that cause it.
- Results should feed limits, the contingency funding plan and strategic decisions, with senior management and board oversight.
Liquidity Stress Testing practice questions
- In a liquidity stress test, why should a bank incorporate second-round effects such as the impact of its own asset sales on market prices?
- A risk manager distinguishes between funding liquidity risk and market liquidity risk. Which situation is the clearest example of funding li…
- A bank's validation team reviews its liquidity stress testing governance. Which finding would be the most serious weakness?
- A bank's stress test assumes that during a severe scenario its secured funding via repo is rolled over only if collateral haircuts remain un…
- A bank's treasury team designs its liquidity stress testing program. The Chief Risk Officer asks who should hold ultimate accountability for…
- A bank holds HQLA of USD 90 million after applicable haircuts. Under the LCR stress scenario, projected cash outflows over 30 days are USD 1…
- A risk manager is calibrating the severity of a market-wide liquidity scenario. Which approach best reflects the concept of a severe but pla…
- A bank's treasury team runs a reverse liquidity stress test. Which description best matches the approach?
Liquidity Stress Testing in other exams
The same ground in other exams, if you are preparing for more than one or want another angle on it.
Liquidity Stress Testing: frequently asked questions
How much calculation is in the liquidity stress testing chapter?
Expect some numerical questions on net outflow, buffer after haircuts, LCR and survival horizon. Many questions are conceptual, so you also need to judge assumptions and interpret results. Prepare for both.
Do I need to memorize LCR and NSFR formulas?
Yes. You should know both ratios, the 100% minimum and the horizons. You should also know what sits in each numerator and denominator, and the 75% cap on inflows in the LCR.
What is the difference between counterbalancing capacity and a liquidity buffer?
Both refer to resources that can raise cash under stress. Counterbalancing capacity is the wider idea and includes assets that can be sold, repo'd or pledged. A buffer usually means the stock of unencumbered liquid assets held for this purpose.
Why does reverse stress testing matter?
It tests whether a bank's standard scenarios are too narrow. By starting from a failure outcome, it exposes vulnerabilities that scenario-led tests may miss, and it prompts management to act on them.