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 |
|---|
| 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 |
Summary of market volume and market share on the Cboe U.S. options exchanges.
| Data for Mar 27 | Volume | % Market | ||||||
|---|---|---|---|---|---|---|---|---|
| Cboe Options Exchange | 2,954,874 | 15.53% | ||||||
| Cboe C2 Options Exchange | 456,718 | 2.40% | ||||||
| Cboe EDGX Options Exchange | 1,559,460 | 8.19% | ||||||
| Cboe BZX Options Exchange | 846,629 | 4.45% | ||||||
| Matched volume doesn't include trades routed to other market centers. (Data delayed at least 20 min.) | ||||||||
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Cboe Options Exchange Overview
Value of a Physical Trading Floor
Latest News
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March 26, 2025
Changes to Available Expirations for MXEA and MXEF Options Effective March 27, 2025, Cboe Options Exchange (“C1”) will begin offering the June 30, 2025, expiration for MXEA and MXEF. Please click title for complete details. -
March 25, 2025
Cboe Options to List S&P 500 Equal Weight Index Options Cboe is pleased to announce that effective trade date April 14, 2025, Cboe Options Exchange (C1) will begin listing cash-settled options on the S&P 500 Equal Weight Index. -
March 25, 2025
Cboe Options to List S&P 500 Equal Weight Index Options Cboe is pleased to announce that effective trade date April 14, 2025, Cboe Options Exchange (C1) will begin listing cash-settled options on the S&P 500 Equal Weight Index. -
March 24, 2025
Cboe Options Scheduled Matching Engine Hardware Upgrade Effective April 6, 2025 and April 13, 2025, Cboe Options Exchange (C1) will perform a migration of Matching Engine processes to newer hardware. -
March 24, 2025
Final Reminder - Cboe Options Updates Unit Symbol Distribution Effective trade date March 31, 2025, all Cboe-affiliated U.S. Options Exchanges will rebalance the symbol ranges for Matching Units 1-30. Please refer to the technical specifications listed below for the new symbol range distributions. -
March 21, 2025
Cboe Trader E-News for Friday, March 21, 2025 -
March 21, 2025
Cboe BZX Options Scheduled Matching Engine Hardware Upgrade From April 4, 2025 through April 11, 2025, Cboe BZX Options Exchange (BZX) will perform a phased migration of Matching Engine processes to newer hardware. -
March 17, 2025
Reminder - Cboe BZX Options Sunsets BOE Version 2 As previously announced, effective March 24, 2025, Cboe BZX Options Exchange (BZX) will decommission Version 2 of the Binary Order Entry (BOE) protocol (BOEv2). Cboe Options, C2 Options, and EDGX Options Exchanges will not be impacted. -
March 17, 2025
Cboe Options Introduces Wide Market Protection Effective April 3, 2025 on EDGX Options Exchange (EDGX), and effective April 7, 2025 on Cboe Options (C1), Cboe C2 Options (C2), and BZX Options (BZX) Exchanges, subject to regulatory review, Cboe will introduce wide market protection (WMP) functionality to reduce the risk of orders executing at adverse prices. -
March 17, 2025
Reminder - Impact of Good Friday Closure on VIX Derivatives As a reminder, certain VIX options (symbol: VIX) as well as one VX future (symbol: VX/H5) will have an expiration date of Tuesday, March 18, 2025