Hedge Fund Best Execution Policy: The Duty, the Evidence and What ODD Teams Test

A hedge fund best execution policy is a short document that has to be backed by a long record. For a manager subject to the US Investment Advisers Act, the SEC's Commission Interpretation of 5 June 2019 (Release No. IA-5248) states that the duty of care includes a duty to seek best execution wherever the adviser selects the brokers that execute client trades. For a UK MiFID investment firm the obligation sits in FCA COBS 11.2A. For a Cayman fund the duty is contractual, written into the investment management agreement and supervised by the fund's directors. In every case the policy itself is rarely the weakness. Operational due diligence teams test whether the manager can show who reviewed execution, against what data, how often, and what changed as a result.

"Best execution is one of the few obligations where the policy is almost never the problem. Every manager we see has a paragraph that says the right things. What separates managers in diligence is whether they can produce the record behind it: which brokers were approved and when, what the trading data showed at the last review, which trades fell outside tolerance and what was done about them. Allocators are not testing the sentence. They are testing whether anyone looked, how often they looked, and whether looking ever changed a decision." David Lloyd, Chief Executive Officer at CV5 Capital

Executive Summary

Best execution outside the MiFID framework is a fiduciary and contractual standard rather than a reporting regime. The manager owes it, the fund's directors oversee it, and allocators test the evidence rather than the wording.

• The SEC's 2019 interpretation describes best execution as seeking to maximise value for the client under the circumstances of the trade, which encompasses more than minimising cost.
• FCA COBS 11.2A lists the execution factors most managers now adopt globally: price, costs, speed, likelihood of execution and settlement, size and nature.
• Cayman fund legislation does not prescribe an execution standard; the duty arises under the investment management agreement and is supervised by directors under the CIMA Rule on Corporate Governance.
• The SEC staff's 2018 risk alert lists the recurring deficiencies, and most of them are failures of review and record rather than failures of trading.
• Transaction cost analysis should be proportionate to the strategy: equities and futures can be measured against arrival price, while FX, credit and OTC instruments rely on time-stamped competing quotes.
• The evidence file is the policy, the dated broker list, the review minutes, the TCA output and the exception log, reported to the board.

Where the Duty Comes From: Three Sources for One Fund

A Cayman hedge fund with a US or UK investment manager sits under more than one best execution regime at once. The manager's regulator imposes a conduct standard on the manager. The investment management agreement creates a contractual standard that the fund's directors are obliged to supervise. A policy that addresses only one of these leaves the others undocumented, and diligence teams notice.

For a manager subject to the Advisers Act, the source is the federal fiduciary duty described in the SEC's 2019 Commission Interpretation. The release states that an adviser must seek execution such that the client's total cost or proceeds in each transaction are the most favourable under the circumstances. Maximising value, it adds, encompasses more than minimising cost, and the adviser should consider the full range and quality of a broker's services, including research, execution capability, commission rate, financial responsibility and responsiveness. The interpretation applies to exempt as well as registered advisers, which brings most private fund managers with a US nexus within it.

For a UK MiFID investment firm, COBS 11.2A.2R requires all sufficient steps to obtain the best possible result for clients, taking into account the execution factors. A UK full-scope AIFM is governed instead by COBS 11.2, which uses an all reasonable steps formulation and requires an execution policy, regular monitoring and an annual review. Since 1 December 2021 the FCA no longer requires the RTS 28 venue reports that once dominated UK best execution work. The emphasis has moved back to internal monitoring and the ability to demonstrate compliance to clients on request under COBS 11.2A.32R.

For the Cayman fund, neither the Mutual Funds Act nor the Private Funds Act sets an execution standard for the investment manager. The duty is created by the investment management agreement, which typically sets a standard of care and an execution commitment. The directors' obligation to supervise it flows from the CIMA Rule on Corporate Governance for Regulated Entities, issued in April 2023. Section 5.8.2 of the Rule provides that a governing body cannot abrogate its responsibility for delegated functions and must have mechanisms for monitoring how they are exercised. The accompanying Statement of Guidance for mutual funds and private funds asks operators to monitor regularly whether the investment manager is performing in accordance with the fund's investment criteria and restrictions. Best execution is not named in either instrument, but it sits inside that supervision, as CV5 has set out in its analysis of what the CIMA corporate governance rules require fund managers to do.

What Best Execution Actually Means: Factors, Not Lowest Commission

The most persistent misunderstanding is that best execution means the lowest commission. The 2019 interpretation, quoting the Commission's 1986 release on the subject, states that the determinative factor is not the lowest possible commission cost but whether the transaction represents the best qualitative execution. COBS 11.2A.2R makes the same point structurally, listing price alongside costs, speed, likelihood of execution and settlement, size and nature, and leaving the firm to weight them.

That weighting is where the policy earns its keep. A liquid large-cap equity order and a block of an off-the-run high-yield bond are governed by the same duty and by almost none of the same factors. The first is measured against price and explicit cost with market impact as the constraint. The second turns on whether the trade can be done at all, at what size, with which dealers, and at what distance from an evaluated price. The table below sets out how the factors typically rank by asset class and what evidence a manager can realistically produce. It reflects market practice rather than any regulator's prescription.

Broker Selection, Approval and Periodic Review

Best execution begins before any order is placed, with the decision about which brokers and counterparties may be used. The SEC staff's risk alert of 11 July 2018 lists, among the most frequent deficiencies in adviser examinations, advisers that used certain broker-dealers without considering the quality and cost of services available from others. The cure is an approved broker process with a written record: who proposed the broker, what due diligence was performed, who approved it and when.

The approved list should record more than names: the services received, whether research or other benefits are bundled with execution, the financial standing check performed, and the date of the last review. Where a broker is also the fund's prime broker, the list should say so, because the tension between execution quality and the wider relationship is one allocators ask about directly. CV5's guide to prime brokerage for emerging hedge funds addresses the relationship side; best execution is the discipline that stops the relationship from dictating the routing.

The review itself is what the 2019 interpretation describes as periodic and systematic. In practice that means a scheduled meeting, a data pack, and minutes that record decisions. A quarterly review with an annual policy refresh is common institutional practice, but no cadence is prescribed by the SEC for a private fund manager, and the right frequency depends on turnover and asset class. What matters to a diligence team is that the cadence is stated, kept and evidenced.

• Selection. A written proposal, due diligence on financial standing and regulatory status, and a record of the execution capabilities and services the broker offers.
• Approval. A named approver or committee, the date, and any conditions such as instrument limits or a trial period.
• Review. Execution data by broker and asset class, commission and fee comparison, error and settlement history, and a decision to retain, restrict or remove.
• Removal. A record of brokers removed and why; no removals over several years is itself a diligence question.

Transaction Cost Analysis Proportionate to Size and Asset Class

Transaction cost analysis is the measurement layer beneath the review. It need not be elaborate, but it must exist, use a benchmark appropriate to the instrument, and be produced on a schedule. A manager trading liquid equities and futures can measure fills against arrival price or a volume-weighted benchmark by broker, algorithm and order size. A manager whose book is credit, FX forwards or OTC derivatives cannot use those benchmarks and should not pretend to. For those instruments the evidence is the quote log: which dealers were asked, when, what they returned, and how the executed level compared to an independent evaluated price.

Equities and listed derivatives

Implementation shortfall against arrival price is the most defensible single measure because it captures delay, impact and opportunity cost from the moment the decision was made. VWAP comparison is simpler but rewards passive participation and can flatter a slow execution. Whichever benchmark is chosen, the output should identify outliers, attribute them to a broker or an algorithm, and feed the review. CV5's analysis of the hidden cost of poor trade operations shows how routing leakage reaches investors; TCA makes that cost visible before an allocator does.

FX, credit and OTC instruments

For FX the essential control is the time stamp. Without it, no comparison to an independent mid is possible and the manager is left asserting that the spread was fair. A panel of competing quotes captured electronically, with executed and declined levels both recorded, is what most allocators now expect from any fund that hedges share classes or runs FX exposure. For credit and OTC derivatives the same principle applies through the dealer quote log and a comparison to an evaluated price at inception. Where only one quote was obtainable, the log should say so and say why.

Where Best Execution Collides with Other Policies

Best execution is rarely breached in isolation. It is breached where it intersects with arrangements that create an incentive to route orders for reasons other than execution quality.

Soft dollars and commission arrangements

Section 28(e) of the Securities Exchange Act of 1934 provides a safe harbour for a manager with investment discretion. It may pay a commission above the lowest available where it determines in good faith that the commission is reasonable in relation to the value of the brokerage and research services received. The Commission's 2006 guidance (Release No. 34-54165, 24 July 2006) sets out a three-step test: whether the product is eligible research or brokerage, whether it provides lawful and appropriate assistance in investment decision-making, and whether the good faith reasonableness determination has been made. The 2018 risk alert lists failure to disclose soft dollar arrangements fully and fairly in Form ADV as a recurring deficiency. Item 12 of Form ADV Part 2A requires a registered adviser to describe the practice and the conflicts it creates. The two records therefore have to reconcile: a broker retained for its research should appear in the review with that fact stated, not disguised as an execution decision.

Cross trades and principal transactions

A cross between two funds managed by the same manager avoids market cost, which is why it is attractive, and removes the market as the arbiter of price, which is why it needs care. Both sides remain owed best execution and fair treatment. The policy should state how the price of a cross is determined and evidenced, and cross-refer to the conditions and consents in CV5's analysis of cross trades and principal transactions in hedge funds.

Outsourced trading

Delegating execution to an outsourced desk does not delegate the duty. The manager remains responsible for seeking best execution and for supervising the provider. The agreement should impose the standard, require TCA delivery and grant audit access, and the manager's own review should read the provider's output rather than file it. CV5's article on outsourced trading for emerging managers covers the supervision framework; an outsourced desk changes who executes, not who is accountable.

The Evidence File: What ODD Teams Ask to See

Operational due diligence has converged on a short list of documents, and the sequence in which they are requested is revealing. The policy comes first, to establish what the manager committed to. The approved broker list comes next, with dates, to establish that the process was actually run. The review minutes and TCA output establish that execution was measured and discussed. The exception log establishes that measurement led somewhere. CV5's guide to answering the AIMA DDQ sets out where the trading and execution questions sit in the standard questionnaire.

The last row is most often missing. A Cayman fund's directors owe the supervisory obligation under the CIMA Rule. The SEC's fiscal year 2026 examination priorities again list advisers seeking best execution with the goal of maximising value for their clients among the fiduciary standards under review. Neither regime is satisfied by a review that never reaches the fund. A short execution summary in the board pack, minuted, closes the loop at little cost. CV5's reading of the SEC 2026 examination priorities for offshore managers places best execution alongside conflicts, fees and valuation in that review.

Common Mistakes

• Adopting a policy drafted for a MiFID firm, complete with venue reporting language, so that the document promises reports nobody produces.
• Treating the prime broker as the default executing broker without ever recording a comparison, which is precisely the deficiency the SEC staff described in 2018.
• Running TCA on equities only and leaving FX hedging, credit and OTC trades outside the review.
• Holding the review meeting and keeping minutes that record attendance and nothing else, or maintaining an approved broker list without approval dates.
• Keeping the review inside the manager and never reporting it to the fund's directors, leaving the governing body unable to show that it supervised the delegated function.

Key Takeaways

• Write the policy by asset class, stating for each instrument in the mandate which factors govern and how they are measured, rather than reciting every factor for every trade.
• Build the approved broker list with dates, approvers, services received and the last review, and record removals as carefully as approvals.
• Fix a review cadence in the policy, keep it, and minute decisions and actions rather than attendance.
• Produce TCA proportionate to the strategy: arrival price benchmarks for equities and futures, time-stamped competing quotes for FX, credit and OTC instruments.
• Reconcile the best execution record with the soft dollar, cross trade and outsourced trading records so that each broker's real reason for selection is stated.
• Report an execution summary to the fund's directors at least annually and have it minuted, because the board's supervisory obligation is not discharged by a review it never sees.

Frequently Asked Questions

Does a hedge fund manager have a legal duty of best execution?

It depends on where the manager is regulated. An investment adviser subject to the US Investment Advisers Act owes a fiduciary duty that the SEC's 2019 interpretation describes as including a duty to seek best execution where the adviser selects broker-dealers. That duty applies to exempt as well as registered advisers. A UK MiFID investment firm is bound by FCA COBS 11.2A and a UK AIFM by COBS 11.2. For the Cayman fund itself the duty is contractual, set out in the investment management agreement and supervised by the directors.

Does best execution mean paying the lowest commission?

No. The SEC has stated since 1986, and repeated in its 2019 interpretation, that the determinative factor is not the lowest possible commission but whether the transaction represents the best qualitative execution. The FCA's execution factors list price alongside costs, speed, likelihood of execution and settlement, size and nature. A manager may legitimately pay more for better execution quality or, within the section 28(e) safe harbour, for eligible research, provided the reasoning is recorded.

How often should a hedge fund review best execution?

The SEC's guidance is that an adviser should evaluate the execution it receives periodically and systematically, without fixing a frequency. UK AIFMs must review their execution policy annually and monitor execution quality regularly. Quarterly broker reviews with an annual policy refresh are common institutional practice, but the right cadence depends on turnover and asset class. The essential point is that the cadence is stated in the policy and demonstrably kept.

Does a small hedge fund need transaction cost analysis?

It needs measurement proportionate to what it trades. A small equity manager can rely on broker or execution management system reports benchmarked to arrival price, reviewed on a schedule and minuted. A manager trading FX, credit or OTC instruments needs a time-stamped quote log rather than a quantitative TCA function. The failures regulators have described are failures to review and record at all, and those are not excused by size.

What best execution evidence do ODD teams ask for?

The standard request is the policy, the approved broker list with approval and review dates, and the minutes of the best execution or broker review meetings. It then extends to the TCA output or quote logs and the exception log showing trades outside tolerance and what was done. Increasingly they also ask whether the review is reported to the fund's board and minuted there.

Who is responsible for best execution when trading is outsourced?

The investment manager remains responsible. An outsourced desk executes on the manager's instructions, and the manager must supervise the provider, receive and review its execution data, and be able to demonstrate that it did so. The outsourcing agreement should impose the best execution standard, require TCA delivery and grant audit rights, but none of that transfers the duty.