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 17 | Volume | % Market | ||||||
|---|---|---|---|---|---|---|---|---|
| Cboe Options Exchange | 10,305,172 | 20.27% | ||||||
| Cboe C2 Options Exchange | 1,403,394 | 2.76% | ||||||
| Cboe EDGX Options Exchange | 2,907,684 | 5.72% | ||||||
| Cboe BZX Options Exchange | 2,087,169 | 4.10% | ||||||
| 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 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 -
March 17, 2025
Cboe Silexx Announcement – March 17, 2025 Cboe Silexx is excited to announce the following enhancements. Please click the title for complete details. -
March 14, 2025
Cboe Trader E-News for Friday, March 14, 2025 -
March 12, 2025
Cboe Options Exchanges Restrictions on Transactions in Options on Cutera, Inc. (Option Symbol CUTR/CUTRQ) Effective March 12, 2025, Cutera, Inc., CUTR will be delisted from the NASDAQ and will move its listing to the Other-OTC Market under symbol CUTRQ. Therefore, trading on Cboe Options (C1) Exchange in CUTRQ options commencing on March 13, 2025, will be subject to certain restrictions described below. Please click title for complete details. -
March 7, 2025
Cboe Trader E-News for Friday, March 7, 2025 -
March 5, 2025
New OCC Clearing Number 132 Please be advised that Clear Street LLC, OCC Clearing #132 has recently become a valid Clearing Number for trade executions on Cboe Options (C1) and Cboe C2 Options (C2) Exchanges. -
March 5, 2025
New OCC Clearing Number 132 Please be advised that Clear Street LLC, OCC Clearing #132 has recently become a valid Clearing Number for trade executions on Cboe Options (C1) and Cboe C2 Options (C2) Exchanges. -
March 3, 2025
Cboe Options Changes to Preferred Market Maker Allocation Entitlement Currently, Cboe Options (C1) and EDGX Options (EDGX) Exchanges allow simple and complex orders in designated classes to be marked with a Preferred Market Maker (PMM), with simple and complex orders executed against the book while the PMM is at the top of market resulting in an allocation entitlement being applied to the PMM. Effective trade date March 24, 2025, subject to regulatory review, the C1 and EDGX allocation entitlement will be changed as described below.