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Cboe U.S. Equities
Cboe is currently one of the largest U.S. equities market operators on any given day. We operate four U.S. equities exchanges – the BZX Exchange, BYX Exchange, EDGA Exchange, and EDGX Exchange. Cboe Global Markets (formerly CBOE Holdings, Inc.) acquired Bats Global Markets, the prior operator of these exchanges, in February 2017. To learn more about that transaction, click here.
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Summary of market volume and market share by venue for the Cboe U.S. equities exchanges.
| Data for Sep 04 | Tape A (NYSE) | Tape B (Regionals) | Tape C (Nasdaq) | Total | ||||
|---|---|---|---|---|---|---|---|---|
| Cboe Total | 276.8M | 8.58% | 252.1M | 11.96% | 592.8M | 10.18% | 1.1B | 10.05% |
| BZX Equities | 134.0M | 4.15% | 106.2M | 5.04% | 185.8M | 3.19% | 426.1M | 3.82% |
| BYX Equities | 22.6M | 0.70% | 14.5M | 0.69% | 33.2M | 0.57% | 70.3M | 0.63% |
| EDGX Equities | 102.1M | 3.17% | 116.0M | 5.50% | 331.9M | 5.70% | 550.0M | 4.93% |
| EDGA Equities | 18.1M | 0.56% | 15.3M | 0.73% | 41.8M | 0.72% | 75.3M | 0.67% |
| Matched volume doesn't include trades routed to other market centers. (Data delayed at least 20 min.) | ||||||||
Book Viewer
| Orders Accepted | Total Volume | Expand All | Select MIC to filter: | |
|---|---|---|---|
| Top of Book | Last 10 Trades | ||||||
|---|---|---|---|---|---|---|---|
| Shares | Price | Time | Price | Shares | |||
| Asks | |||||||
| Bids | |||||||
Last updated
Most Active
The current, most actively traded securities on the Cboe Exchanges.
| Inside Bid | Inside Ask | ||||
|---|---|---|---|---|---|
| Symbol | Shares | Shares | Price | Price | Shares |
| 1.OPEN | 12,225,241 | 2,156 | 5.94 | 5.95 | 2,246 |
| 2.SOXS | 6,612,615 | 85,674 | 7.23 | 7.24 | 74,252 |
| 3.ETHA | 5,685,639 | 9,000 | 32.28 | 32.29 | 13,768 |
| 4.MSTU | 5,543,436 | 76,254 | 4.96 | 4.97 | 59,058 |
| 5.SPY | 5,295,601 | 970 | 647.86 | 647.87 | 205 |
| 6.NIO | 4,525,892 | 7,465 | 6.08 | 6.09 | 20,590 |
| 7.CIGL | 4,238,571 | 233 | 2.89 | 2.92 | 100 |
| 8.ZNB | 4,056,443 | 200 | 1.34 | 1.35 | 600 |
| 9.AEO | 3,380,327 | 233 | 18.42 | 18.43 | 500 |
| 10.NVDA | 3,223,888 | 2,510 | 170.94 | 170.95 | 260 |
Data for Sep 04, 15:35:33
Latest News
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September 2, 2025
Cboe Equities Supports SEC Transparency of Fee Requirements Effective November 3, 2025, all Cboe-affiliated U.S. Equities Exchanges will adopt updated billing methodologies in alignment with the final rule announced by the Securities and Exchange Commission (SEC). -
August 29, 2025
Cboe BYX and EDGX Equities to Relocate Secondary Data Center to CH3 Effective September 13, 2025, Cboe BYX Equities (BYX) and Cboe EDGX (EDGX) Equities Exchanges secondary data center equipment will be relocated to the Equinix (CH3) data center in Elk Grove, Illinois. -
August 29, 2025
Cboe Traders Weekly for Friday, August 29, 2025 -
August 29, 2025
Cboe Equities Weekend and Certification Testing Support for Round Lot Requirement Changes As previously announced, the Securities and Exchange Commission (SEC) will introduce new Round Lot Tier designations beginning November 3, 2025. To support these changes, all Cboe-affiliated U.S. Equities Exchanges will offer weekend testing opportunities beginning September 20, 2025. The complete test schedule is provided below. -
August 25, 2025
Reminder: 2025 SIFMA/FIA and Reg SCI BCP/DR Test In coordination with other market centers, as part of the annual SIFMA/FIA industry test and in support of Regulation Systems Compliance and Integrity (SCI) and Cboe Futures Exchange, LLC (CFE) requirements, Cboe is scheduled to host its annual business continuity plan/disaster recovery (BCP/DR) test on Saturday, October 25, 2025. -
August 25, 2025
Update - Cboe Introduces New Timestamping Report Effective today, August 25, 2025, all Cboe-affiliated U.S. Equities and Options Exchanges will introduce a new All Cancels Timestamping Report, subject to regulatory review. -
August 22, 2025
Cboe Traders Weekly for Friday, August 22, 2025 -
August 15, 2025
Cboe Traders Weekly for Friday, August 15, 2025 -
August 15, 2025
Cboe Equities and Options Exchanges Will Perform NY4, NY5, and NY6 1G Switch Replacements Effective per the schedule below, all Cboe-affiliated U.S. Equities Exchanges and BZX Options (BZX), C2 Options (C2), and EDGX Options (EDGX) Exchanges will perform switch hardware upgrades in their certification and production environments. In preparation for this switch migration, Cboe NOC will not accept new cross connects or interface configuration changes in the certification or production environments for these exchanges during the week before each group of switch replacements. -
August 15, 2025
Cboe Global Cloud to Upgrade to Kafka Version 3.9.1 Beginning November 1, 2025, through November 30, 2025, Cboe Global Cloud will update to Apache Kafka version 3.9.1.