WorkflowInvestment Risk Management

Liquidity Stress Testing

Liquidity stress testing that finds the day each fund breaks and shows why, then waits for your approval

Each fund's breach day found and evidenced, and the quarterly pack signed in a day.

See one case, screen by screen ↓
demo1,452runsovernight across 90 funds and 16 scenarios: 78 pass, 9 watch, 3 breach
demo4daysuntil a $4.8 billion bond fund's highly liquid assets run out under stress, and the 10% gate applies on day 5
demo1.80%stressed swing factor calibrated from spread, impact and fees, inside the 2.00% prospectus maximum
target1dayfrom completed runs to a signed quarterly pack, not a week
In short

What is Liquidity Stress Testing?

Liquidity stress testing checks whether a fund can meet redemptions under severe but plausible stress without harming the investors who stay. It tests the asset side (how fast and at what cost holdings can be sold) and the liability side (redemptions, margin calls and other cash calls). Liquidity Stress Testing gives the risk team seven agents. They design scenarios from each fund's own holders, find the day each fund breaches, check the rules and calibrate the liquidity tools, while a risk manager approves and the CRO signs.

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Updated

The problem

Why liquidity stress testing takes a week every quarter

ESMA's liquidity stress testing guidelines expect every UCITS and AIF to be tested on both sides of the balance sheet, at least annually and preferably quarterly. US funds run Rule 22e-4 liquidity risk management programs with a highly liquid investment minimum and a 15% illiquid cap. From April 16, 2026, each EU open-ended fund must also select at least two liquidity management tools and show how it would activate them. At many fund groups the quarter is still done in spreadsheets: positions from the order management system, the register from the transfer agent, a market liquidity feed and the prospectus terms, stitched together fund by fund and scenario by scenario, then copied into a committee pack.

The risk sits in the assumptions nobody had time to challenge. Redemption risk is a generic percentage, not the fund's own holders. The most liquid assets are assumed to be sold first, which the FCA said creates "a false sense of security". Margin calls in a rates shock are left out, swing factors are set once and rarely recalibrated, and the record of who approved which scenario sits in email.

typical$1.4Bthe SEC's estimate of what US fund liquidity programs under Rule 22e-4 would cost the industry to set up
typical$240Ma yearthe SEC's estimate of what running those programs costs the industry
typical£25Bof gilts sold by leveraged LDI strategies in five weeks in 2022, 30% of it in the first five days
Where a quarter's business days go, from data to a signed packestimated
By hand6 days
With the solution1 days
  • Pulling positions, the register, liquidity data and prospectus terms together1.5 → 0.1 d
  • Building redemption scenarios fund by fund1 → 0.1 d
  • Days to liquidate, margin calls and the credit line1 → 0.1 d
  • Checking results against UCITS, AIFMD, Rule 22e-4 and the prospectus0.8 → 0.2 d
  • Recalibrating swing pricing and the other liquidity tools0.5 → 0.2 d
  • Committee pack, board summary and sign-off1.3 → 0.3 d

Estimated split for one quarterly cycle across a fund range, by hand and with the solution.

How it works

How a quarter of stress tests gets signed

Seven agents design scenarios, drain each fund day by day and check the rules; the risk manager approves and the CRO signs.

What comes in
Systems of recordpositions, register, liquidity data · plus prospectuses and rulebooks
Agents at work
Scenario agentholders and history
Early Warning agentbetween quarters
Then
Liquidation agentdays by tier
Liability agentmargin, credit line
Then
Checker agentrules, challenge
Then
Liquidity Tools agentswing, gate
Pack agentcommittee, regulator
A person decides
Analyst, risk manager, CROprepare, approve, sign
What comes out
Breach day per fund
Tools calibrated
Signed pack
One case, step by step

Fund liquidity stress testing, one fund from the overnight run to the signed pack

Quillfield Capital tests 90 open-ended funds, about $412 billion, every quarter. On Tuesday, October 20, 2026, the Q3 results are in and approvals are due on Friday, October 30. Here is one fund, Quillfield Global Strategic Bond Fund, a $4,819.3 million UCITS sub-fund in Ireland, screen by screen in the working solution.

  1. 01Tuesday morning

    The agents ran the quarter overnight, and tell her what they did

    Amara Nwosu · Head of Liquidity Risk

    Amara's Today screen shows 90 of 90 funds tested in 1,452 runs, 3 breaching under stress (Global Strategic Bond, EM Local Debt and European Real Estate Income), 9 on watch and 61 of 90 signed off. Under "Needs you", six items in order. Beside them, each agent explains its night in its own words with its sources, and she can ask them anything about the cycle.

    Checker agent, 3:02 a.m.: “I challenged the first pass for Global Strategic Bond: it kept gilts highly liquid… Highly liquid assets now run out on day 4, not day 5.”

  2. 021:10 a.m.

    A scenario built from the fund's own holders

    Scenario agent

    The Scenario agent read the transfer agent's register and weekly flows since 2011. The top three holders own 23.6%, and Northbrook Pension Scheme redeemed 38% of its holding in four days in October 2022. It proposed S-07, "Top 3 holders exit plus a gilt shock": the three leave over 5 dealing days, other holders redeem 1.2% of NAV a day (the 99th percentile), gilt yields rise 150 bp over 3 days and gilt bid-ask widens four times. Its five days add up to 30.2% of NAV, against a worst week since 2011 of 10.2%.

    “Results under S-07 stay provisional until a risk manager approves it.”

  3. 03Before it counts

    She approves the scenario, with a reason

    Amara Nwosu · Head of Liquidity Risk

    On approval, results on 90 funds stop being provisional: under S-07, 1 breach, Global Strategic Bond, and 5 on watch. The reason is required and goes in the audit trail. She picks "Plausible and severe: grounded in the register and 2022 history" and signs as herself. Signed in as the analyst, Daniel would find the button locked.

    “Reason (required, kept in the audit trail)”

  4. 04The drain-down

    The fund drawn as a tank, draining day by day

    Liquidation and Liability agents

    The fund's liquidity tiers drain from the top as redemptions and margin calls are paid. Requests run 3.2%, 4.1%, 5.6%, 6.9% and 10.4% of NAV on days 1 to 5. Variation margin takes 2.9%, 2.4% and 1.2% on days 1 to 3. The fund falls below the 5% liquidity floor on day 3, and on day 4 its highly liquid assets are gone: $241M (5.0% of NAV) is sold from investment-grade credit at a stressed cost. On day 5, requests of 10.4% pass the 10% gate in the prospectus (§7.4, p. 47), and $19M is deferred to day 6. The view opens in waterfall order, with a switch to the policy's pro-rata slice.

    The breach day is circled on the tank. A day scrubber moves the water line from D0 to D10.

  5. 05Days to liquidate

    The agents check each other, and the sale order

    Checker agent

    Across 412 positions, the whole fund takes 4.3 days to liquidate in normal markets and 11.6 days under stress, at a cost of 0.31% rising to 1.74%. 37 positions are flagged as priced on proxy data. The Checker agent compares both sale orders. Under the policy's pro-rata slice, the breach day stays day 4 and holders who stay keep 21% of what remains in highly liquid assets. A waterfall keeps exit costs at 0.94% but leaves them none.

    The Checker agent never settles a disagreement itself. Below 85% confidence, a person decides.

  6. 06A challenge

    “Can we sell gilts faster?” — answered from the data

    Tobias Lind · Portfolio Manager, Global Strategic Bond

    Tobias thinks he can sell gilts in a day, even in 2022. Amara puts his question to the agents beside the tank. The Liquidation agent answers at 88% confidence. In October 2022 sterling gilt volumes held up, but bid-ask on long gilts widened four times. Selling the 2049 and 2051 gilts in one day at 20% of volume would cost about 1.9% on those lines, and even at 40% of volume the breach only moves to day 5. Tobias can read and comment on his funds, but he cannot approve them.

    “I kept them in moderately liquid; the risk manager decides.”

  7. 076:12 a.m.

    A stressed swing factor, with the arithmetic shown

    Liquidity Tools agent

    The fund uses two liquidity management tools: swing pricing as its anti-dilution tool and a 10% redemption gate. The Liquidity Tools agent adds up the stressed costs: a dealing spread of 1.12%, market impact of 0.56% at 20% of volume, and 0.06% of duties and fees, 1.74% in all. It rounds up to 1.80%, inside the supplement's 2.00% maximum (p. 14). Over days 1 to 5 the fund pays out $1,436M. At today's 0.45% factor, holders who stay would bear about $19.4M of dealing costs.

    Maker-checker: Daniel Reyes prepared it at 8:05 a.m.; a different person must approve it before it goes to the fund administrator.

  8. 08Three rulebooks

    One strategy under UCITS, Rule 22e-4 and AIFMD, side by side

    Checker agent

    The same scenario runs on the three funds that share the strategy. The UCITS breaches: highly liquid assets are exhausted on day 4, and the Central Bank of Ireland must be told of a material liquidity risk. Strategic Income Fund, a US mutual fund, dips below its 25% highly liquid minimum on days 3 to 5 (low 18.6%). That means a board report at the next meeting but no Form N-RN, because the shortfall lasts 3 days, under 7. Strategic Credit Fund, a Luxembourg AIF with 30 days' notice, passes. Every cell cites its rule and the fund document.

  9. 095:48 a.m. · drafted

    A 64-page Risk Committee pack, every figure traced

    Pack agent, then Daniel, Amara and Helen

    The Pack agent drafted the Q3 Risk Committee pack for November 4: 64 pages in ten sections, 214 figures each linked to its run. Daniel Reyes prepared it. Amara reviews it once the three breach conclusions are approved, and Helen Marsh, Chief Risk Officer, signs it. The notice to the Central Bank of Ireland follows the same pattern: the Pack agent drafts it, Ravi Iyer in compliance prepares it and Helen approves it.

    “Prepared, reviewed and signed by three different people”

  10. 10On the record

    Every step, with who, why and the evidence

    Sofia Brandt · Internal Audit

    The audit trail lists every agent step with its version, every approval with its reason and every override with its evidence. That includes Amara's approval of S-07, the swing factor calculation and Mei Lin Tan's requested override of Pampas Agro 2031, from 31 stressed days to 24 after a dealer bid. It is kept for 7 years. One click exports the evidence pack for an auditor or the regulator, and the export is itself logged.

    “Who did what, when, why and on which evidence · every agent step with its version · kept 7 years”

Who it’s for

Built for everyone who runs, approves and signs the quarter.

The same breach, seen by four of the people who carry it: in their own words, and what their quarter looks like now.

AN
Amara NwosuHead of Liquidity Risk · London · approves scenarios, conclusions and thresholds
Head of Liquidity Risk
Before
“Tell me the day it breaks, and show me why.” She owns the quarterly cycle for 90 funds and argues with portfolio managers about sale order.
Now
Opens each fund at its breach day, with the agents' account of every day and their sources, and approves or rejects with a reason.
DR
Daniel ReyesLiquidity Risk Analyst · New York · the maker
Liquidity Risk Analyst
Before
“I spend the first week of every quarter copying numbers.”
Now
Starts the cycle for all 90 funds in one action, works the queue by breach day and SLA, and prepares tool changes and the pack for approval.
HM
Helen MarshChief Risk Officer · Liquidity Program Administrator for US funds
Chief Risk Officer
Before
“If it goes to the board, every number has to trace back.”
Now
Signs a pack that a different person prepared and another reviewed, with every figure linked to its run. She also approves each regulator notice before it goes out.
TL
Tobias LindPortfolio Manager, Global Strategic Bond · London
Portfolio Manager
Before
“I can sell gilts in a day — even in 2022.”
Now
Reads his own funds' results, challenges them in plain words and gets the evidence back. He can comment, but he never approves.
Built on the engine

7 agents. Each with one job, and hard limits.

Seven agents design scenarios, drain each fund day by day and check the rules; the risk manager approves and the CRO signs.

Scenario agent

Designs redemption scenarios from the fund's flow history, investor types and concentration and from market events. It runs reverse stress tests too, proposing each scenario with its reasons and sources.

  • Never activates a scenario: a risk manager approves it first
  • Results stay provisional until then
Liquidation agent

Computes days to liquidate and cost by tier and position, in normal and stressed markets. It uses the policy's sale order, from order management positions, two market liquidity feeds and the official NAV.

  • Never overwrites a person's override
  • Flags every position priced on proxy data
Liability agent

Adds the liability side to each run: margin calls, eligible collateral, the shared credit facility and settlement mismatches.

  • Never assumes the shared facility beyond the fund's allocation
Checker agent

Recomputes the other agents' work and challenges their assumptions, the sale order among them. It checks each result against UCITS, ESMA's liquidity stress testing and liquidity management tool guidelines, AIFMD, Rule 22e-4 and the prospectus.

  • Never resolves a disagreement itself
  • Below 85% confidence, a person decides
Liquidity Tools agent

Calibrates swing factors, gates, anti-dilution levies and notice periods from stressed costs, and tests when each would activate.

  • Never activates a tool or changes a factor
  • Never exceeds a prospectus maximum
Pack agent

Drafts the Risk Committee pack, the board summary and regulator notices, with every figure linked to its run.

  • Never sends a notice
  • Never signs
Early Warning agent

Between quarters, watches register concentration, flows, data quality and use of the credit facility every morning. When a trigger fires, it starts an ad hoc test.

  • Always tells the analyst before an ad hoc test
Analyst, risk manager, CRO

Prepare, approve, sign. The agents propose; a named person decides.

Ask in plain words

Ask the agents about any fund, in plain words

Beside every drain-down and on the Today screen, you can question the result or ask for a variant. The agents answer with their sources, and nothing they draft counts until a person approves it.

Why does Global Strategic Bond breach on day 4?

Gilts (14.2% of NAV) stop being highly liquid when bid-ask widens four times, as in 2022. Margin calls take 6.5% in three days, and the top three holders (23.6%) leave. The 21.3% buffer is used up on day 4, and the 10% gate applies on day 5.

What if Northbrook leaves over ten days?

Daily requests would peak at 5.8% instead of 10.4%. The gate would not apply, and highly liquid assets would run out on day 6 instead of day 4. Saved as variant S-07b for an analyst to check and a risk manager to approve.

Can we sell gilts faster?

In October 2022, sterling gilt volumes held up but bid-ask on long gilts widened four times. Selling the 2049 and 2051 gilts in one day at 20% of volume would cost about 1.9% on those lines, and even at 40% of volume the breach moves only to day 5. They stay in moderately liquid; the risk manager decides.

Which funds need a regulator notice?

One: Global Strategic Bond, a material liquidity risk notice to the Central Bank of Ireland. Strategic Income Fund needs a board report but no Form N-RN: its shortfall lasts 3 days, under 7.

Every screen

The working solution, as it ships.

13 screens from the working solution, on its sample data. Pick one to see it large.

TodayThe quarter's liquidity stress testing at a glance: funds tested, breaches and watch under stress, what needs the risk manager, and each agent's overnight account with sources.
The drain-downOne fund's liquidity tiers draining day by day under a redemption scenario, with the liquidity floor, the 10% gate and swing pricing as lines, and the agents' conclusion to approve.
Ask the agentsA portfolio manager's challenge answered beside the drain-down, with 2022 gilt market evidence and the agent's confidence.
Liquidity stress testing scenariosThe library of historical, hypothetical, combined and reverse stress testing scenarios, and why the Scenario agent proposed this one from the fund's top holders.
Approve with a reasonA risk manager approves a scenario with a required reason, kept in the audit trail, before its results count.
Days to liquidateDays to liquidate and cost by liquidity tier, normal and stressed, with the liability side (margin calls, collateral, credit facility) and the sale order comparison.
Liquidity management toolsThe fund's liquidity management tools, the stressed swing pricing calibration with its arithmetic, the prospectus maximum and the maker-checker chain to the fund administrator.
Rule check across wrappersOne strategy tested as a UCITS, a US mutual fund under Rule 22e-4 and an AIF, each requirement met, breached, needing action or not applicable, with its citation.
The fund queueAll 90 funds in the cycle with worst scenario, breach day, stressed days to liquidate, result, analyst, approval and SLA.
Early warningsBetween quarters: holder concentration, outflow triggers, stale market data with a proxy awaiting approval, and use of the shared credit facility.
The Risk Committee packThe 64-page pack drafted from approved runs, every figure traced, with the prepared, reviewed and signed chain.
Audit trailEvery agent step, approval, override and tool change with who, when, why and the evidence, and the evidence pack export.
Thresholds and policyStress test frequency, cycle deadline, liquidity floor, sale order, participation rate, swing threshold, gate, highly liquid minimum and the agents' confidence threshold.
Governance

Built for liquidity stress testing oversight: cited, approved, signed, on the record.

Every value cites its sourceEvery value names where it came from: order management positions, the transfer agent's register, the liquidity feed and date, a prospectus page or a rule paragraph. Each pack figure links to its run.
Prepare, approve, sign: three peopleThe analyst runs and prepares. The risk manager approves scenarios, conclusions, overrides and tool thresholds with a reason. The CRO signs the pack and approves regulator notices. Nobody approves their own work.
Provisional until a person approvesA scenario an agent proposes counts only once a risk manager approves it, and results on stale market data stay provisional until a person approves the proxy.
Agents never activate a toolAgents never activate a liquidity tool, change a swing factor, send a notice or sign, and never recommend beyond a prospectus maximum. A threshold change goes to the fund administrator only after maker-checker.
Segregation of duties, enforcedRoles cover analyst, risk manager, CRO, portfolio manager, compliance, board member (read-only), auditor and administrator. A grant that would let someone check their own work is refused, and a settings change needs the CRO as second approver.
An audit trail regulators can followEvery action is recorded with who, what, when, why, the evidence and the agent's version, and kept for 7 years. The evidence pack exports as CSV or JSON, and the export is itself logged. EU funds' data stays in the EU region and US funds' data in the US.
Configuration

Your liquidity stress testing policy, as settings

The liquidity stress testing methodology (frequency, floors, sale order and tool thresholds) comes from the firm's LST and LMT policies and the fund documents. A change is proposed, needs a second approver and is logged.

SettingDefaultChoose from
Stress test frequencyQuarterly; monthly for watch-list fundsFrom the LST policy. A fund joins the watch list when an early-warning trigger fires, for example net outflows over 3% in three days
Cycle deadline20 business days after quarter endAnalysts and risk managers get a digest 3 days before; the CRO is told on the deadline
Liquidity floor5% of NAV in highly liquid assetsCan differ by fund group. A pending change raises it to 6% for EM funds, waiting for its second approver
Primary sale orderPro-rata slice; waterfall shown for comparisonBoth orders are computed on every run, so the result is never flattered by selling the most liquid assets first
Participation rate20% of daily volumeDrives days to liquidate and market impact by position
Swing threshold (Global Strategic Bond)Net flow over 2.0% of NAVPer fund, from its supplement; factors stay inside the prospectus maximum
Gate (ICAV funds)10% of NAV on one dealing dayFrom the prospectus (§7.4, p. 47)
Highly liquid minimum (US funds)Per fund, set by the board (e.g. 25%)A shortfall over seven days is flagged for Form N-RN; a shorter one goes to the board
Agent confidence thresholdBelow 85% a person decidesRaised from 80% to 85% on October 16, approved by the CRO
Connections

Works with the systems a stress test already runs on

Order management systempositions, trades and orders (38,214 positions here)
Transfer agentthe register, holder types and weekly flows since 2011
Market liquidity datatwo vendors: daily volume, bid-ask, liquidity buckets and dealer quotes
Portfolio accounting and the fund administratorofficial NAV and share classes; swing factors, dealing and the credit facility
Collateral system and custodianmargin, eligible collateral, cash and settlement cycles
Fund documents and rulebooksprospectuses, supplements and LST and LMT policies; ESMA, AIFMD and Rule 22e-4
What it changes

The difference, in numbers.

Every figure is labelled: a target the solution is built to, an estimate, a typical published result, or a proven one.

target
1day
from completed runs to a signed quarterly pack, not a week
Todaya week
With agents1 day
target
100%
of scenarios, conclusions and tool thresholds approved by a named risk manager with a reason
90 of 90 funds
each conclusion signed
typical
4times a year
every UCITS and AIF tested on assets and liabilities, investor concentration included, as ESMA recommends
quarterly
ESMA guidelines, since Sept 30, 2020

“demo” = seen in the working solution, on its sample fund data · “target” = the design goal, measured in the live solution · “estimated” = our estimate · “typical” = published figures (SEC estimates of the cost of Rule 22e-4 liquidity programs, about $1.4 billion to set up and $240 million a year; Bank of England analysis of the 2022 gilt market crisis; ESMA Guidelines on liquidity stress testing in UCITS and AIFs, ESMA34-39-897; ESMA Guidelines on liquidity management tools, applying April 16, 2026; FCA multi-firm review of liquidity management, July 2023). Quillfield Capital and the people, funds, investors and identifiers named on this page are fictional: characters and sample data in the working solution.

Questions

What risk teams ask about liquidity stress testing.

What is liquidity stress testing?

Liquidity stress testing checks whether a fund can meet redemptions under severe but plausible stress without harming the investors who stay. It tests the asset side (how fast and at what cost holdings can be sold) and the liability side (redemptions, margin calls and other cash calls). Liquidity Stress Testing gives the risk team seven agents. They design scenarios from each fund's own holders, find the day each fund breaches, check the rules and calibrate the liquidity tools, while a risk manager approves and the CRO signs.

How often do ESMA's liquidity stress testing guidelines require UCITS and AIFs to be tested?

ESMA's guidelines, which apply from September 30, 2020, expect at least an annual test and recommend a quarterly one. The tests cover assets and liabilities, investor type and concentration, and historical and hypothetical scenarios. In the working solution the policy is quarterly for every fund and monthly for funds on the watch list, with results approved within 20 business days of quarter end.

What are liquidity management tools under AIFMD II and the revised UCITS rules?

They are the tools a fund can use in stress, among them redemption gates, extended notice periods, redemption fees, swing pricing, dual pricing, anti-dilution levies and redemptions in kind. From April 16, 2026, each EU open-ended fund must select at least two and set activation policies; funds that existed before then have until April 16, 2027. The rule check shows each fund's selection and whether one is an anti-dilution tool, and the Liquidity Tools agent tests when each would activate.

How is a stressed swing pricing factor calibrated?

From the costs the fund would pay to meet stressed outflows: the dealing spread, market impact at the participation rate, and duties and fees. In the demo these add up to 1.12% + 0.56% + 0.06% = 1.74%, rounded up to 1.80%, inside the supplement's 2.00% maximum. An analyst prepares the change and a risk manager approves it before it goes to the fund administrator.

How does it calculate days to liquidate?

Position by position, from the order management system's holdings and two market liquidity feeds, at a set share of daily volume (20% by default), in normal and stressed markets. The results are grouped by liquidity tier. The demo fund takes 4.3 days to liquidate normally and 11.6 days under stress, at a cost of 0.31% rising to 1.74%. Positions priced on proxy data are flagged, and any override needs a reason.

Does it cover a Rule 22e-4 liquidity risk management program and Form N-RN?

It runs the stress testing side of a Rule 22e-4 liquidity risk management program. The same scenario runs against each US fund's highly liquid investment minimum and the 15% illiquid limit. In the demo, a shortfall that lasts 3 days goes to the fund board at its next meeting without a Form N-RN. A shortfall over seven days is flagged for one.

Do people stay in control of the results?

Yes. The agents propose and explain; they never activate a liquidity tool, change a factor, send a notice or sign. A scenario counts only after a risk manager approves it with a reason. The CRO signs the pack after a different person prepared it and another reviewed it, and below 85% confidence the decision goes to a person.

How long does it take to go live?

The Agentic Solution Engine builds and deploys it from your requirements and documents: your LST and LMT policies, prospectuses and a past quarter of positions and register data. It goes live once every quality gate has passed. We will walk you through it on your own funds first.

See it on
your funds.

We'll run Liquidity Stress Testing on a past quarter of your own positions, register and fund documents.