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Silexx API Replaces Flat Fee With Tiered Pricing

Cboe Exchange proposes to replace the existing flat $200 monthly fee for the Silexx application programming interface (API) with a three-tier usage-based pricing structure ranging from $299 to $999 per login ID per month. The proposed tiers include different rate limits and daily call caps, with overage fees of $0.01 per call for Tier 1 and Tier 2 users exceeding their daily caps. The proposal is effective March 2, 2026, and all login IDs will default to Tier 1 unless users elect otherwise.

Trading Permit Holder Statutory Disqualification Procedures Amendment to Exchange Rule 3.13

Cboe Exchange proposes to amend Exchange Rule 3.13 regarding statutory disqualification procedures for Trading Permit Holders (TPHs) to conform with FINRA Rule Series 9520 and industry standards. The proposal addresses inconsistent outcomes when FINRA processes SD applications on behalf of the Exchange, as the Exchange's current rules require 19h-1 Notices in certain circumstances where FINRA would not. The amendment would incorporate a new Statutory Disqualification Circular outlining eligibility procedures and rely on FINRA's 2009 No-Action Letter for interpretive guidance.

Annual CAT Clock Synchronization Certification Reminder

Cboe Exchanges issued Regulatory Circular 26-002 reminding Industry Members of the annual Business Clock Synchronization Certification deadline of March 16, 2026 (extended from March 15, which falls on a Sunday). Under the Exchanges' Consolidated Audit Trail (CAT) Compliance Rules, affected members must maintain certification records internally and make them available to regulators upon request. Members belonging to multiple exchanges or FINRA need only complete a single certification.

Stop-Limit Complex Orders and SCOA Auction Mechanism

CBOE Exchange proposes to amend Rules 5.33, 5.21(b), 5.25(c), and 5.34(c) to establish stop-limit complex orders as a new order type and Stop Complex Order Auctions (SCOA) as a new auction mechanism for options trading. The proposal extends existing stop-limit functionality for simple orders to complex orders and introduces a dedicated auction process to facilitate simultaneous management of long and short legs. CBOE's President approved the filing on February 24, 2026, with implementation details to follow within 60 days.

Proposed Amendment to Binary Options Rules on All Indexes

Cboe Exchange proposes to amend its Rules related to binary options, including expanding the underlying indexes from broad-based indexes to all indexes. The amendment would permit listing binary options on all indexes under Rule 4.16. The Exchange separately intends to file a rule change to reduce the minimum exercise settlement value from $10 to $1.

Proposed Amendment to FLEX Options ETF Cash Settlement

Cboe Exchange filed a proposed rule change (SR-CBOE-2026-035) with the SEC to amend Rule 4.21 governing cash settlement for FLEX Equity Options on ETFs. The proposal would permit newly FLEX-eligible ETFs satisfying liquidity thresholds based on a one-month lookback period to elect cash settlement, establish tiered criteria for handling cash-settled FLEX ETF Options when the underlying ETF no longer meets eligibility requirements at bi-annual review, and eliminate the existing 50-ETF cap on cash settlement eligibility.