Cboe Options Exchanges
Cboe provides choice for our diverse trading customers by operating four U.S.-listed cash equity options markets, including the largest options exchange in the U.S. – Cboe Options Exchange.
Cboe Options Exchange |
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Hybrid, Classic Model |
Open outcry and electronic exchange |
Cboe C2 Options Exchange |
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Pro-Rata, Maker-Taker Model |
All-electronic exchange |
Cboe BZX Options Exchange |
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Price-Time, Maker-Taker Model |
All-electronic exchange |
Cboe EDGX Options Exchange |
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Classic Pro-Rata/Customer Priority/DMM Model |
All-electronic exchange |
Latest News
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July 19, 2024
Cboe Trader E-News for Friday, July 19, 2024 -
July 17, 2024
Quarterly Rebalance of Option Class Tiers Reminder – 2nd Quarter 2024 Pursuant to Cboe Options Rule 5.50(g)(1) and EDGX Options Fees Schedule, each exchange rebalances the option class appointment unit tiers, excluding the “AA” tier, every calendar quarter based on national average daily volume (ADV), which may result in additions or deletions to each tier’s composition. -
July 17, 2024
Quarterly Rebalance of Option Class Tiers Reminder – 2nd Quarter 2024 Pursuant to Cboe Options Rule 5.50(g)(1) and EDGX Options Fees Schedule, each exchange rebalances the option class appointment unit tiers, excluding the “AA” tier, every calendar quarter based on national average daily volume (ADV), which may result in additions or deletions to each tier’s composition. -
July 15, 2024
Cboe Silexx Announcement – July 15, 2024 Cboe Silexx is excited to announce the following enhancements. Please click the title for complete details. -
July 12, 2024
Cboe Trader E-News for Friday, July 12, 2024 -
July 12, 2024
Reminder - Cboe Options Exchanges to Introduce Higher Bandwidth PITCH Feeds As previously announced, effective July 29, 2024, Cboe BZX Options (BZX), C2 Options (C2), and EDGX Options (EDGX) Exchanges will introduce higher bandwidth PITCH depth of book market data enhancement to provide customers faster, more efficient real-time market data feed. -
July 12, 2024
Christmas and New Year’s Holiday Closure Impact on VIX Options and VX Futures The Christmas holiday on Wednesday, December 25, 2024, will impact Cboe Volatility Index (VIX) options and VX futures expiring during the fourth week of December 2024, as described below. -
July 10, 2024
Cboe Options Exchanges Restrictions on Transactions in Options on Ideanomics, Inc. (Option Symbol IDEX/IDEX1) Effective July 10, 2024, Ideanomics, Inc., IDEX will be delisted from the NASDAQ. Therefore, trading on Cboe Exchange, Inc. (“Cboe Options”) in IDEX and adjusted IDEX1 options commencing on July 11, 2024, will be subject to certain restrictions described below. Please click title for complete details. -
July 5, 2024
Schedule Update - Cboe BZX Options Announces Release and Weekend Testing Dates for Unitized Architecture, BOEv3 Protocol Cboe BZX Options Exchange (BZX) is pleased to announce the release of version 3 of its Binary Order Entry (BOE) protocol on August 19, 2024, subject to regulatory review. The BOEv3 protocol will offer fixed length messages, a single gateway per matching unit, and enhanced determinism. -
July 5, 2024
Schedule Update - Change in Index Price Format for Cboe Mini-SPX Index (Symbol: XSP) and S&P 500 Settlement Reduced Index (Symbol: XSR) Effective on a date yet to be determined, the decimal scale for the Cboe Mini-SPX Index (Symbol: XSP) and S&P 500 Settlement Reduced Index (Symbol: XSR) prices will be expanded. Please click title for complete details.