CFTC Moves to Scrap Rarely Used Order Book Mandate for Most Swaps Traded on SEFs

The Commodity Futures Trading Commission proposed on August 20, 2026 to strip swap execution facilities of a long-standing obligation to maintain an electronic order book for every swap they list, after concluding that market participants almost never use those books for the swaps that dominate on-venue volume. The Notice of Proposed Rulemaking would amend the agency’s swap execution facility rules so that venues no longer have to offer an order book for what the regulations call permitted transactions.

Swap execution facilities, or SEFs, are the regulated trading venues created by the Dodd-Frank Act to move over-the-counter swaps onto transparent, supervised platforms. Under the current rulebook, every registered SEF must maintain an order book, an electronic system where participants can post and match bids and offers, as its minimum trading functionality for each swap it lists. The CFTC now says that requirement has outlived its usefulness for the broadest category of swaps.

The rule draws a line between two classes of swaps. Required transactions are those covered by the trade execution requirement in the Commodity Exchange Act, which mandates that certain liquid, clearing-eligible swaps trade on a SEF or designated contract market. Permitted transactions are everything else: swaps not subject to the trade execution requirement, which the Commission says trade almost exclusively off order books. According to the Commission, order books for permitted transactions “have been rarely used by market participants for swaps trading on SEFs despite their availability for all swaps listed by SEFs for trading,” unlike the books maintained for required transactions.

“Today’s action continues the agency’s commitment to prescribing the minimum effective dose of regulation for market participants,” Chairman Michael S. Selig said in the August 20 announcement. “By removing excessive requirements from our rulebook, the Commission is remaining true to its principles-based regulatory approach.”

The CFTC framed the proposal as a resource question for the venues themselves. Eliminating the order book obligation for permitted transactions would give SEFs “the flexibility to determine how to allocate their resources,” the release states, and could “spur further development and innovation in execution methods” better matched to the products SEFs list. Most institutional swaps flow through request-for-quote systems, where a buy-side desk solicits prices from a set of dealers, rather than through central limit order books of the kind equity and futures traders know.

Comments are due within 30 days of the proposal’s publication in the Federal Register.

What the Proposal Leaves in Place

The carve-outs matter more than the change for anyone trading benchmark interest-rate swaps. The order book requirement survives intact for required transactions — the swaps the CFTC has brought under the trade execution mandate through made-available-to-trade determinations. That population includes major slices of the dollar and sterling overnight index swap market: in July 2023 the Commission approved a MAT determination from TW SEF covering spot-starting and IMM-dated SOFR overnight index swaps in tenors out to 30 years, alongside SONIA contracts, pulling them onto SEF order books and request-for-quote systems.

For those instruments, SEFs must still maintain a functioning order book under the minimum trading functionality standard. What changes is the periphery: the thousands of swap listings (less liquid tenors, currencies, and structures that sit outside the execution mandate) for which venues have been maintaining order books that, in the Commission’s own finding, participants rarely touch.

The proposal also lands on an obligation that has been effectively unenforced for over a year. On July 30, 2025, the CFTC’s Division of Market Oversight issued a no-action letter stating staff would not recommend enforcement against any SEF that declined to provide a central limit order book for swaps not subject to the trade execution requirement. The proposed rule would convert that temporary staff position into a permanent amendment, removing the mismatch between the written rule and the relief.

The direction of travel has been consistent for years. In a December 2020 rulemaking, the Commission carved the swap components of several package-transaction categories out of the order book requirement, while noting at the time that SEFs remained obligated to offer order books for permitted transactions as part of the minimum trading functionality standard. The new proposal would close that remaining gap. It follows the agency’s August 19, 2026 opening of a review of compute derivatives as the first GPU-linked futures approach listing, a second front in the same deregulatory and market-development agenda.

What Happens Next

The proposal takes effect only after the formal comment process runs its course. The Federal Register publication of the Notice of Proposed Rulemaking starts a 30-day window for public comment, after which the Commission must review submissions and vote on a final rule. Until a final rule is adopted, the July 2025 no-action position remains the operative relief for SEFs not offering order books on permitted transactions.