Guide

Liquidity and Balance-Sheet Stress Scenarios

A financial institution meets its obligations through cash inflows, liquid assets, funding access and management action. During stress, however, depositors, borrowers, counterparties and markets may react to the same event. A test that shocks one balance-sheet item at a time can therefore understate how quickly liquidity pressure develops.

Marketways constructs linked scenarios with an explicit sequence of behaviour, cash flow, market effects and feasible management choices. The analysis shows when buffers become constrained, which assumption drives the result and what evidence should trigger intervention.

Define the decision and survival horizon

A stress test may support daily contingency funding, risk appetite, recovery planning or strategic balance-sheet management. Each purpose requires a different horizon, level of detail and management response.

Marketways begins by defining the obligations that must be met, the entities and currencies covered, and the period the institution must survive without an implausible assumption of external support. We also identify the decisions that leaders can make before and during the stress.

This framing turns the exercise into a management test. It prevents one severe-looking scenario from being used for several decisions that require different evidence.

Build a contractual cash-flow baseline

The institution must first understand when contractual inflows and outflows are due. The baseline includes deposits, wholesale funding, loan repayments, committed facilities, derivatives, collateral calls and operational payments.

Marketways reconciles these cash flows with the balance sheet and relevant off-balance-sheet commitments. We separate available liquid assets from assets that are encumbered, operationally inaccessible or unsuitable in a given market.

The baseline exposes maturity mismatches before behavioural assumptions are added. It also identifies data gaps that would prevent reliable monitoring during an event.

Replace contractual timing with explicit behavioural assumptions

Contractual maturity does not determine when a depositor will withdraw, a borrower will draw a facility or a counterparty will demand collateral. Stress testing therefore depends on behavioural assumptions.

Marketways examines product terms, insurance or protection status, customer concentration, relationship characteristics and evidence from comparable periods. We express runoff, drawdown and rollover behaviour as ranges rather than conceal uncertainty within one rate.

Management can then see which assumption determines the survival horizon. The analysis also distinguishes evidence from judgement when history does not contain a comparable stress.

Link funding, market and credit pressure

Deposit outflow, higher facility utilisation and lower market liquidity can occur together. Funding pressure may force asset sales, while market repricing reduces sale proceeds and capital losses weaken confidence further.

Marketways defines the causal sequence and timing of these interactions. We connect funding cash flows with haircuts, collateral, borrower behaviour, market depth and relevant balance-sheet effects.

The linked scenario reveals pressure that isolated shocks miss. It also prevents the test from assuming that every balance-sheet relationship remains unchanged while the institution is under stress.

Model concentration and transfer constraints

Aggregate liquidity can appear sufficient even when it sits in the wrong currency, legal entity or location. A concentrated group of depositors or funding providers can also withdraw faster than an average runoff assumption implies.

Marketways examines concentration by customer, product, currency, entity and maturity. We represent legal, operational and timing constraints on moving funds or collateral between parts of the institution.

This analysis identifies local shortfalls that consolidated totals can conceal. It also shows which dependency requires diversification, pre-positioning or a specific contingency action.

Apply realistic haircuts and market capacity

An asset may be liquid in ordinary conditions yet difficult to sell at the required speed during a common market shock. Several institutions may also attempt the same sale or funding action at once.

Marketways models execution time, price impact, haircuts, settlement and the volume a market can absorb. We separate unencumbered assets from collateral already committed or operationally unavailable.

The scenario therefore measures usable counterbalancing capacity rather than accounting value. Management can see how quickly a funding gap consumes genuinely available resources.

Test management actions for feasibility

A scenario may assume asset sales, funding access, pricing changes or balance-sheet reduction. However, the proposed response may require approval, customer communication, operational preparation or market access that does not exist at the required speed.

Marketways distinguishes actions already authorised and tested from actions that require a new decision. We record lead time, capacity, dependencies and the conditions under which each option remains credible.

This discipline prevents an optimistic management response from rescuing the model on paper. It also reveals which preparation must occur before the stress begins.

Use reverse stress testing to find the failure boundary

A conventional test asks what happens under a selected scenario. Reverse stress testing asks which combination of outflow, drawdown, haircut or market closure would exhaust a defined buffer or breach a limit.

Marketways searches for plausible paths to that boundary and identifies the assumptions with the greatest influence. We do not treat every mathematically possible path as equally credible.

The result directs attention towards vulnerabilities that fixed scenarios may overlook. It also supports early-warning thresholds before the institution reaches the failure boundary.

Use Agentic AI to monitor evidence and prepare exceptions

During a stress, analysts may need current balances, concentrations, collateral, market prices and scenario assumptions from several systems. Delay and inconsistent extraction can weaken the response.

An Agentic AI workflow can retrieve permitted evidence, compare current indicators with approved triggers and prepare a traceable exception for authorised review. It may identify which assumption is deteriorating and which pre-approved action remains available.

The workflow must preserve source timing, missing data and model version. It must not change risk appetite, limits or material balance-sheet positions outside delegated authority.

Convert the scenario into a trigger framework

A dramatic narrative does not tell management when to act. The stress test must connect observable indicators with named owners, permitted actions and the conditions that require a new judgement.

Marketways identifies buffer adequacy, survival horizon, limit breaches, time to action and recovery feasibility across scenarios. We define escalating triggers before the event and test them through exercises or historical episodes.

Material differences between assumed and observed behaviour improve the next scenario. This feedback prevents false confidence in a static annual test.

A combined outflow scenario illustrates nonlinear pressure

Suppose a bank can withstand a severe deposit runoff when tested alone. It can also meet higher utilisation of committed facilities in a separate test.

If both occur while market liquidity falls, the institution may need to sell assets earlier. Larger haircuts then reduce counterbalancing capacity, while the sale itself can weaken confidence or capital. A response that was feasible in either isolated test may become too slow or too small.

Marketways would identify the binding point, the assumption that drives it and the earliest observable trigger. Management can then strengthen the relevant buffer, pre-authorise an action or reduce the exposure before pressure compounds.

How Marketways develops the stress decision

Marketways defines the decision, contractual baseline, behavioural ranges and linked causal sequence. We model concentration, usable collateral, market capacity and feasible management actions before identifying survival horizons and intervention triggers.

The engagement may combine Risk and Uncertainty Modelling, Decision Assurance and Simulation and Scenario Analysis. Marketways supports technical and management review, while the institution retains its regulatory, risk-appetite and balance-sheet decisions.

Related guides and evidence

References

  1. Basel Committee: Liquidity stress testing survey
  2. IMF: Stress Testing at the IMF
  3. IMF: Next-generation system-wide liquidity stress testing
  4. IMF: Indonesia FSAP liquidity stress-testing note
  5. Bank of England: Liquidity stress testing