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 |
|---|
| 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 |
|---|
| 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 Apr 26 | Volume | % Market | ||||||
|---|---|---|---|---|---|---|---|---|
| Cboe Options Exchange | 15,600 | 0.02% | ||||||
| Cboe C2 Options Exchange | 647,975 | 0.81% | ||||||
| Cboe EDGX Options Exchange | 658,716 | 0.83% | ||||||
| Cboe BZX Options Exchange | 146,242 | 0.18% | ||||||
| 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
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Latest News
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April 25, 2025
Cboe Trader E-News for Friday, April 25, 2025 -
April 24, 2025
Update - Cboe Options Exchanges Limit IOC Quotes per Quote Update Message Effective April 25, 2025, on EDGX Options (EDGX) Exchange and effective April 28, 2025, on BZX Options (BZX), Cboe Options (C1), and Cboe C2 Options (C2) Exchanges, Cboe will limit the number of IOC quotes per Quote Update message to one. -
April 24, 2025
Cboe Options Allows FLEX and Non-FLEX Instruments on Complex FLEX Orders Effective trade date June 23, 2025, Cboe Options Exchange (C1) will allow a new type of complex FLEX order which may include a combination of FLEX Option series and non-FLEX Option series on the same underlying security or index. -
April 23, 2025
Cboe Options Exchanges Restrictions on Transactions in Options on Ocean Biomedical, Inc. (Option Symbol OCEA) Effective April 23, 2025, Ocean Biomedical, Inc., OCEA will be delisted from the NASDAQ. Therefore, trading on Cboe Options (C1) Exchange in OCEA options commencing on April 24, 2025, will be subject to certain restrictions described below. Please click title for complete details. -
April 22, 2025
Cboe Options Exchanges Restrictions on Transactions in Options on Solo Brands, Inc. (Option Symbol DTC/DTCB) Effective April 22, 2025, Solo Brands, Inc., DTC will be delisted from the NYSE and will move its listing to the Other-OTC Market under symbol DTCB. Therefore, trading on Cboe Options (C1) Exchange in DTCB options commencing on April 23, 2025, will be subject to certain restrictions described below. Please click title for complete details. -
April 22, 2025
Cboe Silexx Announcement - April 22, 2025 Cboe Silexx is excited to announce the following enhancements. Please click the title for complete details. -
April 21, 2025
Cboe to Observe Moment of Silence on Monday, April 21, 2025 Cboe Global Markets will join other market participants in observing a one-minute moment of silence at 9:20 a.m. ET on Monday, April 21, 2025, to honor the life of Pope Francis. -
April 17, 2025
Cboe Options Exchanges Restrictions on Transactions in Options on Enzo Biochem, Inc. (Option Symbol ENZ/ENZB) Effective April 17, 2025, Enzo Biochem, Inc., ENZ will be delisted from the NYSE and will move its listing to the Other-OTC Market under symbol ENZB. Therefore, trading on Cboe Options (C1) Exchange in ENZB options commencing on April 21, 2025, will be subject to certain restrictions described below. Please click title for complete details. -
April 16, 2025
Quarterly Rebalance of Option Class Tiers Reminder – 1st Quarter 2025 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. -
April 16, 2025
Quarterly Rebalance of Option Class Tiers Reminder – 1st Quarter 2025 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.