SEC gives itself until 25 November to rule on MEMX event contracts

The US Securities and Exchange Commission (SEC) has given itself until 25 November 2026 to decide whether to approve MEMX’s proposed rules for listing and trading securities event contracts. The notice, dated 7 October 2026 and published in the Federal Register on 13 October, extends a 45-day period that would have ended on 11 October.

MEMX LLC filed the proposal on 11 August 2026.

The details

• The proposal: MEMX wants to add a new Chapter 30 to its exchange rules, allowing securities event contracts to be listed and traded on its options platform.
• Publication: the proposal was published for comment in the Federal Register on 27 August 2026. Comments received are available on the SEC’s website under file number SR-MEMX-2026-25.
• The extension: under Section 19(b)(2) of the Securities Exchange Act of 1934, the SEC may extend the 45-day period to up to 90 days if it finds that appropriate. It said it needs enough time to consider the proposal and the issues raised in it.

What’s next

By 25 November the SEC must approve the proposal, disapprove it, or institute proceedings to determine whether it should be disapproved. The notice does not say which it will choose or name the issues it has in mind.