FRM Exam Part II · Liquidity Stress Testing

Liquidity Risk Fundamentals and Stress Testing Objectives

Updated 11 October 2026 · Fact-checked

Liquidity risk has two forms: market liquidity risk (you cannot sell an asset near its fair price) and funding liquidity risk (you cannot meet cash obligations as they fall due). A liquidity stress test projects cash inflows, outflows and buffers under severe scenarios to see if the bank survives. It focuses on cash and time, not capital losses.

Understand Liquidity Risk Fundamentals and Stress Testing Objectives

Liquidity risk is the risk that a firm cannot meet its payment obligations when due, or can do so only at very high cost. A bank can be profitable and well capitalised and still fail if cash runs out. Liquidity is about cash and timing. Solvency is about whether assets exceed liabilities.

Market liquidity risk is the risk that you cannot sell or hedge a position quickly without moving the price. It shows up as wide bid-ask spreads, thin depth and large price impact. It depends on the asset, the position size and market conditions. Funding liquidity risk is the risk that you cannot raise cash, or roll over debt, to meet obligations. It shows up as deposit outflows, lost wholesale funding, higher haircuts, margin calls and collateral demands.

The two risks feed each other. A bank short of funding must sell assets, which pushes prices down in illiquid markets. Lower prices cause losses and bigger haircuts and margin calls, which raise funding needs. This is a liquidity spiral. Maturity transformation (short-term liabilities funding long-term assets) and leverage make the spiral more likely.

Liquidity stress tests exist because normal-times metrics miss these dynamics. Liquidity can vanish quickly and non-linearly, and confidence effects matter. Objectives of a stress test: identify vulnerabilities and funding concentrations, size liquidity buffers, set limits and early warning triggers, test the contingency funding plan, and inform senior management and the board. Supervisors also use results to judge resilience.

A liquidity stress test differs from a solvency or capital stress test. Capital tests project losses, revenue and capital ratios over a long horizon, often one to three years. Liquidity tests project cash flows over short horizons (overnight, days, weeks, up to a year) and ask whether the survival horizon is long enough. They include behavioural assumptions (deposit runoff, drawdowns of credit lines), the value of assets after haircuts, and the ability to monetise them. The two interact: a solvency scare can trigger a run, and a run can force fire-sale losses.

Key formulas to remember

Net cash flow in a period: Net cash flow = Cash inflows − Cash outflows; Stressed inflows are reduced and outflows are increased by scenario assumptions.
Cumulative liquidity position: Cumulative gap(t) = Liquidity buffer (after haircuts) + Σ net cash flows up to t; The first t where it turns negative is the survival horizon.
Buffer value after haircut: Haircut value = Market value × (1 − haircut); Use the stressed haircut, not the normal one.
Survival horizon: Survival horizon = number of days until the cumulative liquidity position falls below zero; Compare it with the horizon set by policy or regulation.

How to solve Liquidity Risk Fundamentals and Stress Testing Objectives questions

Use this approach for any question on liquidity risk definitions, stress test purpose or a simple projection.

1Classify the problem: is it about selling assets (market liquidity) or raising or keeping cash (funding liquidity)?
2Check whether the question concerns cash and timing (liquidity test) or losses and capital ratios (solvency test).
3Identify the scenario: idiosyncratic, market-wide or combined, and the horizon.
4Apply stressed assumptions: lower inflows, higher outflows, larger haircuts.
5Compute net cash flows and the cumulative position against the buffer, if numbers are given.
6Find the survival horizon or the shortfall.
7State the interpretation and a management action, such as raising the buffer, diversifying funding or invoking the contingency funding plan.

Quickest way: Classify, stress, accumulate

When to use it: Use for multiple-choice questions with short scenarios or small cash flow tables.

Underline the trigger words: spread, depth, price impact mean market liquidity; rollover, runoff, margin call, deposits mean funding liquidity.
Reject options that mix up cash with capital or losses.
If numbers are given, apply haircuts to the buffer first, then add net flows period by period.
Pick the first period where the cumulative total is negative.
Check that the answer uses stressed, not base-case, inputs.

Common mistakes in Liquidity Risk Fundamentals and Stress Testing Objectives

Treating market and funding liquidity as the same thing
Both are called liquidity and both worsen in crises.
Fix: Ask whether the problem is selling an asset (market) or obtaining cash (funding). Remember they interact through spirals.
Saying a liquidity stress test measures capital adequacy
Candidates carry over ideas from capital stress tests.
Fix: Liquidity tests look at cash flows and survival horizon. Capital tests look at losses and capital ratios.
Assuming a solvent bank cannot have a liquidity problem
Positive equity feels safe.
Fix: A bank with positive equity can fail if it cannot meet cash obligations. Maturity transformation creates the exposure.
Using book or market values of buffer assets without haircuts
Candidates forget assets may be sold at a discount in stress.
Fix: Apply stressed haircuts to get the cash that can actually be raised.
Using the same horizon and assumptions as a capital test
Both are called stress tests.
Fix: Liquidity tests use short horizons and behavioural assumptions such as depositor runoff.

Worked examples

Example 1

A bank holds ₹ equivalent liquid assets: USD 800 million of government bonds (stressed haircut 5%) and USD 200 million of corporate bonds (stressed haircut 20%). Stressed net outflows are USD 300 million in week 1, USD 450 million in week 2 and USD 250 million in week 3. What is the survival horizon in whole weeks?

Show the solution

Bond buffer after haircut: 800 × (1 − 0.05) = 760.
Corporate buffer after haircut: 200 × (1 − 0.20) = 160.
Total buffer = 760 + 160 = USD 920 million.
After week 1: 920 − 300 = 620.
After week 2: 620 − 450 = 170.
After week 3: 170 − 250 = −80, which is negative.

Answer: The bank survives 2 full weeks; it runs out of liquidity during week 3, with a shortfall of USD 80 million.

Example 2

A fund must sell a large position in a thinly traded bond to meet margin calls. Its sale pushes the price down, creating losses and further margin calls. Which risk type is this, and how does a liquidity stress test differ from a solvency stress test in assessing it?

Show the solution

The need to meet margin calls is funding liquidity risk.
The price drop from selling a large position in a thin market is market liquidity risk.
The feedback between them is a liquidity spiral.
A liquidity stress test projects margin outflows and asset sale proceeds after stressed haircuts over short horizons, to find the survival horizon.
A solvency test projects losses and capital ratios over a longer horizon, without focusing on cash timing.

Answer: Both market and funding liquidity risk interacting in a liquidity spiral. A liquidity stress test measures whether cash lasts (survival horizon), while a solvency test measures whether capital stays adequate after losses.

Exam tips

Expect scenario questions that ask you to label the risk as market or funding liquidity. Look for the trigger words.
Know the interaction: funding stress forces asset sales, which hit market prices and raise haircuts and margin calls.
For differences between tests, remember: cash and short horizon for liquidity, losses and capital ratios for solvency.
In numerical items, apply haircuts before adding flows and use stressed assumptions.
Be ready to name uses of results: buffer sizing, limits, early warning indicators and contingency funding plan testing.

Practice questions from Liquidity Stress Testing

Liquidity Risk Fundamentals and Stress Testing Objectives in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Liquidity Risk Fundamentals and Stress Testing Objectives: frequently asked questions

What is the difference between market liquidity risk and funding liquidity risk?

Market liquidity risk is the inability to sell or hedge an asset quickly without a large price effect. Funding liquidity risk is the inability to raise cash or roll over debt to meet obligations. They reinforce each other in crises.

Why is liquidity stress testing important for banks?

Banks borrow short and lend long, so funding can disappear quickly. Stress tests reveal how long the bank can survive, size buffers and test the contingency funding plan. Supervisors also rely on them.

How is a liquidity stress test different from a solvency stress test?

A liquidity test projects cash flows over short horizons to see if obligations can be met. A solvency test projects losses and capital ratios over a longer period. A bank can pass one and fail the other.

What is a survival horizon?

It is the length of time a bank can meet its obligations under a stress scenario using its buffer and available funding. It ends when the cumulative liquidity position becomes negative.