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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May 29, 2024
Cboe Holiday Reminder – Modified Trading Hours on Wednesday, June 19, 2024 The table below outlines the modified trading schedules for the Cboe Options Exchanges (Cboe Options (“C1”), C2, BZX, and EDGX Options) and the Cboe U.S. Equities Exchanges (BYX, BZX, EDGA, and EDGX Equities) in observance of the Juneteenth National Independence Day holiday. -
May 28, 2024
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. -
May 24, 2024
Cboe Trader E-News for Friday, May 24, 2024 -
May 23, 2024
Cboe Options Updates Order and Execution Price Validation for SPX/SPXW Jelly Rolls Effective trade date June 3, 2024, Cboe Options Exchange (C1) will reject SPX/SPXW jelly roll limit orders if the net limit price is in a sub-nickel increment. -
May 22, 2024
Cboe Options Exchanges Restrictions on Transactions in Options on iSun, Inc. (Option Symbol ISUN) Effective May 22, 2024, iSun, Inc., ISUN will be delisted from the NASDAQ. Therefore, trading on Cboe Exchange, Inc. (“Cboe Options”) in ISUN options commencing on May 23, 2024, will be subject to certain restrictions described below. Please click title for complete details. -
May 17, 2024
Cboe Trader E-News for Friday, May 17, 2024 -
May 16, 2024
Update - Change in Index Price Format for Cboe Mini-SPX Index (Symbol: XSP) and S&P 500 Settlement Reduced Index (Symbol: XSR) Effective July 22, 2024, 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. -
May 16, 2024
Update - Cboe Options Exchanges to Introduce Higher Bandwidth PITCH Feeds and Sunset 1G PITCH Feeds Beginning May 20, 2024 through July 29, 2024, 2024 Cboe BZX Options (BZX), C2 Options (C2), and EDGX Options (EDGX) Exchanges will make various PITCH depth of book market data enhancements to provide customers faster, more efficient real-time market data feeds. -
May 15, 2024
Daily Settlement Prices for MSCI ACWI Net Total Return Index (MSACW) for May 13, 2024 and May 14, 2024 The following daily settlement prices were not disseminated over the Cboe Global Indices Feed. Please click title for complete details. -
May 14, 2024
Daily Settlement Prices for MSCI USA Index (MSUSA) and MSCI World Index (MSWLD) Options for May 14, 2024 The following daily settlement prices were not disseminated over the Cboe Global Indices Feed on May 14, 2024. Please click title for complete details.