On Aug. 25, 2025, SEC published designation of longer period in the federal register.
On May 6, MEMX proposed rule on trading options on MX2 exchange.
MEMX reported MX2 proposed rule change to adopt rules governing trading of options.
Follows SEC MX2 exchange application as new national securities exchange, #236907.
Proposed Amendments
MX2 Options Exchange will operate fully automated, customer priority/pro rata allocation model; in similar manner to options exchange operated by affiliate, MEMX.
With the exception of the proposed priority model and certain other limited differences.
Operate electronic trading system to trade options, provide for electronic display and execution of orders; routing service for orders when trading interest not present.
All exchange members eligible to participate provided specifically authorized to trade.
Consultation
Comments must be submitted within 21 days of publication in the federal register.
Jun. 2, 2025 MEMX MX2 Proposal Re-Filing
On Jun. 2, 2025, MEMX issue re-filed proposed rule to adopt rules to govern options trading on exchange; Comments submitted 21 days of publication in federal register.
Jun. 18, 2025 MEMX MX2 Proposal Re-Filing
On Jun. 18, 2025, MEMX issued re-filing of proposal to adopt rules to govern trading of options on MX2 exchange; comments due 21 days after publication in federal register.
Document dated Jun. 18, 2025, received from MEMX Jun. 25, summarized on Jun. 27.
Jul. 2025 Fed Reg Proposal
On Jul. 7, 2025, SEC published proposal in federal register, comment by Jul. 28, 2025.
Follows SEC issuance of notice of filing of MX2 proposed rule change on Jul. 1, 2025.
Aug. 20, 2025 SEC Longer Period
On Aug. 20, 2025, SEC issued longer period to take action, until Oct. 5, 2025.
Aug. 25, 2025 Fed Reg Longer Period
On Aug. 25, 2025, SEC published designation of longer period in the federal register.
