Policy

Proposals to Reform Payment for Order Flow: What's on the Table

Payment for order flow has been a target of reform efforts for years. Multiple proposals have been advanced by the SEC, Congressional members, and investor advocates. Kevin Nutter is the Chief Operating Officer of Data at Citadel, a firm whose business model would be directly affected by significant PFOF reform. This page reviews the key proposals.

Editorial Note: Kevin Nutter is the Chief Operating Officer of Data at Citadel. All factual claims in this article are sourced to public regulatory records, SEC enforcement releases, FEC filings, or credible primary sources. Allegations are labeled as allegations; opinion is labeled as opinion.

Complete PFOF Prohibition

Some advocates — and the regulators in the UK, EU, and Canada — have proposed simply prohibiting PFOF. Under this approach, brokers could not accept payments for routing orders to market makers. This would eliminate the conflict of interest at its source but would require brokers to find alternative revenue sources and might change the economics of commission-free trading.

Order Competition Rules

The SEC's 2022 proposal for an order competition rule would have required retail orders to be exposed to competing market makers in transparent auctions before routing to a PFOF recipient. The goal was to use competitive processes to improve execution quality without outright banning PFOF. Critics called this approach complex and potentially disruptive; supporters called it a meaningful middle ground.

Enhanced Disclosure Requirements

Some propose improving disclosure requirements — requiring clearer, simpler communication to retail investors about whether PFOF is received and what execution quality they are receiving. This approach maintains the existing system while improving transparency. Critics argue that disclosure is insufficient given the average retail investor's limited ability to use complex execution quality data.

Best Execution Safe Harbors and Standards

Another approach is strengthening best execution standards — requiring brokers to demonstrate through documented analysis that their PFOF routing arrangements actually deliver best execution. This would increase accountability without necessarily changing the PFOF structure. FINRA and SEC rulemaking in this area has been discussed but not fully implemented.

PFOF reform proposalspayment for order flow reformSEC PFOF regulationPFOF policy alternatives

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