By Sophie Lindqvist

The SEC held a roundtable on options market structure reform in April, preceded by public comment letters from individual market participants, institutions and academics. Chair Paul Atkins set expectations explicitly: the event was "neither a prelude to, nor a harbinger of, any options rulemakings in the immediate term." Everything discussed sits in the fact-finding stage, not on a rule calendar. Yet the sharpest disagreements at the roundtable signal which practices now face scrutiny, and each one reaches into execution workflow: order routing, auction participation and the economics of retail flow.

What did the chair actually commit to?

Nothing with a date. Atkins framed the roundtable, in his words, as neither a prelude to nor a harbinger of options rulemakings in the immediate term. That separates what is measured — the comment record, the academic studies submitted — from what is mandated, which at present is nothing. Desks tracking rule pipelines can treat this as monitoring, not compliance planning.

Why is directed market maker access contentious?

Exchanges currently designate specific market makers as specialists in given auction classes. These appointments are neither democratic nor performance-based, and they often last for life. The practical effect: designated firms fill the lion's share of retail positions regardless of what other market makers quote.

The design dates from an era when specialist institutions carried quoting obligations to support liquidity in thin markets. Critics argue highly liquid names no longer need that subsidy, and the guaranteed monopoly over orders of five lots or fewer is anti-competitive.

Reform proposals from the debate are specific:

• Limit directed market makers (DMMs) to the least liquid options classes.
• Subject appointments to annual review, with expiry and renewal within a defined period.
• Prohibit DMMs from "unbundling" larger orders to gain preferential access under the five-lot rule.

How do price improvement auctions come under pressure?

The auctions ostensibly aim for best execution, but two mechanisms drew criticism: auto-matching and preferential allocation to affiliated market makers. The mechanism works like this: when a firm's price is uncompetitive, it can tactically initiate an auction rather than improve its quote. Under auction rules it then automatically matches competing prices while still capturing up to 50% of the allocation. Critics say this rewards capturing order flow rather than posting competitive prices at the outset.

Proposals from the debate include removing auto-matching, which currently disincentivizes initiators from quoting their best price up front, and reviewing the allocation advantage granted to the initiator's market maker.

What does the data say about payment for order flow?

Retail brokers route options orders to wholesalers such as Citadel and Susquehanna, which pay a fee for the flow. Unlike equities, where internalization happens off-exchange, the bulk of options retail trades are internalized through on-exchange mechanisms like the auctions above.

A study by Xing Huang and Christopher Schwarz, covering trades placed with six brokers in 2024 and submitted to the SEC ahead of the roundtable, quantifies the concern. PFOF correlates negatively with:

• price improvements overall (-0.91);
• frequency of auction use (-0.83);
• price improvements when using auctions (-0.93);
• price improvements when using auto-execution (-0.91).

Defenders of the practice point to the growth in retail participation and volumes since zero-commission trading arrived. The source analysis concludes that PFOF, though the practice retail traders understand best, is the least likely of the three to change, because it has driven industry growth. An outright ban appears unlikely; the realistic ceiling for critics is a transparency push that lets traders see the execution quality they receive.

Who flagged the celebratory tone?

Lauren Rauch, co-CEO of Chicago Trading Company, wrote in her comment letter that she anticipated defenders of the status quo would use the roundtable to say retail investors have "never had it better." Subsequent coverage of the event described overall participant sentiment in exactly those words.

The roundtable record now sits with the Commission. Whether it becomes a proposal — or the horizon keeps receding, as the source analysis puts it — depends on what the SEC does with that record next.