FINRA's Proposed Rule 4610: What Broker-Dealers Need to Know About Liquidity Risk Management

TL;DR

• FINRA’s proposed Rule 4610 would impose a formal liquidity risk management program on roughly 125 clearing and carrying broker-dealers — covering stress testing, contingency funding plans, and eight “rebuttable presumption” trigger conditions
• As of April 2026, it remains a concept proposal; no formal rule filing has been made with the SEC
• FINRA is already finding liquidity risk deficiencies through current examination authority, so “it’s not finalized” is not a reason to wait
• If your firm carries customer accounts or clears for others, the architecture of Rule 4610 tells you what FINRA expects to see — even now

SVB Was a Bank. But It Woke Up the Broker-Dealer Regulators Too.

Silicon Valley Bank failed on March 10, 2023. Signature Bank two days later. First Republic in May. Three significant failures in less than 90 days, all driven by liquidity crises that accelerated faster than management anticipated.

Bank regulators moved quickly. The OCC and Federal Reserve issued updated guidance. The FDIC started rethinking deposit insurance structures. The Basel Committee revisited NSFR calibrations.

FINRA moved too. In June 2023, three months after SVB, FINRA issued Regulatory Notice 23-11 — a concept proposal for a new Rule 4610 that would establish formal liquidity risk management requirements for broker-dealers. The comment period closed August 11, 2023.

The message was clear: if you clear for customers, carry customer assets, or otherwise sit at a node where a liquidity failure could cascade, FINRA wants to know you have a real plan.

Here’s what the proposed rule covers, where it stands, and what compliance and risk teams should be doing about it — even before finalization.

What Rule 4610 Would Require

The concept proposal structures broker-dealer liquidity risk management around three core obligations.

Pillar 1: Maintain Sufficient Current Liquidity

The baseline obligation: firms must have available cash or liquid assets sufficient to meet all funding obligations as they come due, under both normal and stressed conditions. This is an ongoing, real-time requirement — not a year-end snapshot or a quarterly certification.

For firms already running tight on liquidity buffers — particularly during margin stress events, settlement disruptions, or clearing deposit spikes — this framing matters. “We were fine last month” is not a defense.

Pillar 2: Liquidity Stress Testing

Firms must conduct regular liquidity stress tests modeling both firm-specific (idiosyncratic) scenarios and market-wide scenarios. FINRA has been examining liquidity risk programs under current authority and flagging deficiencies well before Rule 4610 passes.

The 2025 FINRA Annual Regulatory Oversight Report identified three specific stress testing failures at broker-dealers:

1. Using only month-end FOCUS data. Firms modeled clearing deposit stress based on month-end filing data — but clearing deposits can spike significantly intra-month during volatile periods. A stress test anchored to month-end data systematically underestimates peak exposure.

2. Unreasonable inventory financing assumptions. Some firms assumed a large percentage of their inventory could be readily financed in stress, without accounting for haircut expansion, lender pullback, or liquidity preference among repo counterparties during market stress.

3. Insufficient clearing deposit stress. Firms weren’t applying adequate stress to clearing deposit requirements — particularly for firms with significant derivatives clearing exposure where variation margin calls can accelerate sharply.

These findings exist today, under examination authority FINRA already has. Rule 4610 would formalize the framework, but the examination expectations are already live.

Pillar 3: Contingency Funding Plan

The CFP requirement under Rule 4610 covers familiar ground for anyone who has built a bank-style CFP, but with broker-dealer-specific calibration. The plan must be written, and must:

• Designate responsible personnel with specific roles during a liquidity stress event
• Identify guidelines and conditions for plan activation (what triggers the CFP, who declares it, what governance is required)
• Identify realistic liquidity sources accessible under stress — not just “we have a credit line” but sources that have been tested, are contractually available, and are realistically accessible when markets are stressed
• Account for contractual covenants that could restrict access to funding under stress (credit facilities that terminate or accelerate on rating downgrades, margin posting requirements triggered by credit events, etc.)

The “realistic” qualifier on liquidity sources is doing significant work here. FINRA’s examination findings have repeatedly identified broker-dealers that list liquidity sources in their plans that would not actually be accessible under the stress scenarios modeled. A parent company line of credit that requires board approval and can be frozen by the parent’s own liquidity stress is not a reliable contingency source.

For comparison with what bank regulators expect of bank-affiliated entities, see who needs a contingency funding plan under FINRA, OCC, and interagency requirements.

The Rebuttable Presumption: Eight Tripwires

The most novel — and controversial — element of Rule 4610 is the rebuttable presumption mechanism. The concept proposal includes eight specific triggering conditions where a single occurrence creates a presumption that the firm is not sufficiently liquid. The firm must notify FINRA and then affirmatively rebut the presumption, or face potential activity restrictions.

The eight conditions:

Notification timeline:

• 2 business days after the condition occurs: notify FINRA
• 5 business days after notification: submit written rebuttal evidence demonstrating sufficient liquidity

If the firm cannot rebut the presumption within five business days, FINRA may impose activity restrictions or suspend business operations.

The EPR exception: Broker-dealers affiliated with bank holding companies subject to Federal Reserve Enhanced Prudential Regulation — those subject to LCR/NSFR requirements — get a modified burden of proof. For EPR firms, FINRA bears the burden of demonstrating insufficient liquidity rather than the firm bearing the rebuttable presumption burden. This recognizes that EPR firms already operate under a comprehensive regulatory liquidity framework.

Where Rule 4610 Stands: Still a Concept Proposal

This is important context for compliance planning. As of April 2026, Rule 4610 has not been formally filed with the SEC.

The rulemaking path from concept proposal to effective rule requires:

1. FINRA Board of Governors approval of a formal rule proposal
2. Formal filing with the SEC as an SR-FINRA-XXXX-XXX filing
3. SEC publication in the Federal Register for public comment
4. SEC approval of the final rule text
5. FINRA implementation with a compliance date

FINRA’s 2024 Annual Regulatory Oversight Report confirmed: “FINRA is working through the process for a proposed rule related to liquidity risk management.” That language signals ongoing development, not imminent finalization.

The comment period on the concept proposal closed in August 2023. Industry response was substantial — particularly on the rebuttable presumption mechanism, which drew criticism for its automatic notification trigger and tight rebuttal timeline. Whether and how FINRA incorporates those comments into a formal rule proposal remains to be seen.

What to Do Before the Rule Finalizes

“Not finalized yet” is not a useful compliance position for a clearing broker. FINRA is already examining liquidity risk programs under current authority, finding deficiencies, and citing them in examination reports. The architecture of Rule 4610 tells you what the examination framework will look like — and what gaps are likely to draw scrutiny regardless of whether the rule passes.

Practical steps now:

1. Assess your stress testing against the three documented failure modes. Go back to your current stress testing and ask whether it covers intra-month clearing deposit peaks (not just month-end), realistic inventory financing haircuts under stress, and adequate variation on clearing deposit scenarios. If any of those gaps exist, fix them now. They’re already examination findings.

2. Audit your contingency funding plan for realistic sources. Map every liquidity source in your CFP against the question: “Would this actually be available if our three largest clearing deposits spiked simultaneously?” Sources that depend on parent company discretion, are subject to termination covenants, or require board approval under stress conditions are not realistic contingency sources.

3. Map your exposure to the eight rebuttable presumption conditions. For each of the eight triggers, identify: (a) whether it could realistically occur at your firm, and (b) if it occurred, what evidence would demonstrate sufficient liquidity. Building this rebuttal case in advance is dramatically easier than constructing it under a 5-business-day clock during an actual stress event.

4. Document CFP governance explicitly. Who activates the CFP? Under what conditions? Who approves the decision? What is the escalation path to the board? FINRA expects these questions to have written, tested answers — not ad hoc judgment calls.

For a full framework on what a defensible contingency funding plan contains, see contingency funding plan: key components and what examiners look for.

The Broader Context: Why This Rule Exists

Broker-dealer liquidity failures have historically been rapid and destabilizing. When Bear Stearns hedge funds collapsed in 2007, the speed of the liquidity run caught regulators off-guard. When Lehman Brothers failed in 2008, its broker-dealer subsidiary’s clearing relationships were in chaos within hours.

The 2023 bank failures brought that conversation back. The common thread: concentration risk in funding sources, stress testing that didn’t model realistic adverse scenarios, and contingency plans that identified funding sources that weren’t actually available under stress.

FINRA’s proposal is essentially asking broker-dealers to answer the same questions the Federal Reserve asked banks after 2008: what happens to your funding if counterparty confidence erodes, and do you have a credible written plan for surviving it?

The answer FINRA expects to see is the same one bank examiners expect — a real stress testing program, realistic contingency sources, documented governance, and the ability to demonstrate sufficient liquidity under challenge. See what a contingency funding plan is and who needs one for the foundational framework.

So What?

Rule 4610 hasn’t passed. It may not pass in its current form — the rebuttable presumption mechanism in particular is likely to be modified in response to industry feedback. The timeline to finalization is uncertain.

None of that changes the core compliance obligation: if your firm is a clearing or carrying broker-dealer, FINRA already examines your liquidity risk program, already finds deficiencies, and already cites them. The concept proposal is a preview of the examination framework, not a distant regulatory future.

Build the stress testing program that doesn’t fail under the three documented deficiency patterns. Build the CFP with sources that are actually available under stress. Document the governance. When Rule 4610 does finalize — and it will, in some form — you’ll be ready. More importantly, you’ll be ready for the exams that are happening right now.

Building or updating a liquidity risk governance framework? The Enterprise Risk Management Framework includes risk appetite statement templates, governance documentation, and board reporting frameworks that form the foundation of a defensible liquidity risk management program.