U.S. Option System Status
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MIAX Options
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MIAX Pearl
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MIAX Emerald
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MIAX Sapphire
All Options Exchanges Alerts
Regulatory Alert, Trading Alert
MIAX Pearl
August 21, 2026 | 11:53 AM
MIAX Exchange Group - Options Markets - Market for Underlying Security Used for Openings for Newly Listed Adjusted Symbol MSTU2 Effective Monday, August 24, 2026
Please refer to the Regulatory Circulars listed below for the newly listed adjusted symbol and the corresponding market for the...
Regulatory Alert, Trading Alert
MIAX Options
August 21, 2026 | 11:53 AM
MIAX Exchange Group - Options Markets - Market for Underlying Security Used for Openings for Newly Listed Adjusted Symbol MSTU2 Effective Monday, August 24, 2026
Please refer to the Regulatory Circulars listed below for the newly listed adjusted symbol and the corresponding market for the...
Trading Alert, Technical Alert
MIAX Emerald
August 21, 2026 | 11:31 AM
MIAX Emerald Options Exchange - Updated Interface Specifications to Support Upcoming Enhancements
The MIAX Emerald Exchange interface specifications have been updated as follows. Support for IEX and MX2 Options Exchange Updates to the following...
Regulatory Alert, Technical Alert, Trading Alert
MIAX Options
August 21, 2026 | 11:28 AM
MIAX Options Exchange - Updated Interface Specifications and Implementation Schedule for Upcoming Enhancements
As previously announced in the March 30, 2026 Alert, the MIAX Options Exchange will implement the below functionality enhancements. Functionality Enhancements: Support for...
Trading Alert, Regulatory Alert, Technical Alert
MIAX Pearl
August 21, 2026 | 11:27 AM
MIAX Pearl Options & MIAX Sapphire Options Exchanges - Updated Interface Specifications to Support Upcoming Enhancements
The MIAX Pearl Options and MIAX Sapphire Options Exchanges have updated interface specifications to include support for the IEX and...
Trading Alert, Regulatory Alert, Technical Alert
MIAX Sapphire
August 21, 2026 | 11:27 AM
MIAX Pearl Options & MIAX Sapphire Options Exchanges - Updated Interface Specifications to Support Upcoming Enhancements
The MIAX Pearl Options and MIAX Sapphire Options Exchanges have updated interface specifications to include support for the IEX and...
Listing Alert
MIAX Emerald
August 21, 2026 | 11:02 AM
MIAX Exchange Group - Options Markets - T-Rex 2X Long MSTR Daily Target ETF (MSTU) (MSTU2)
T-Rex 2X Long MSTR Daily Target ETF (MSTU) has announced a reverse stock split effective for Monday, August 24, 2026. MSTU2 will be...
Listing Alert
MIAX Pearl
August 21, 2026 | 11:02 AM
MIAX Exchange Group - Options Markets - T-Rex 2X Long MSTR Daily Target ETF (MSTU) (MSTU2)
T-Rex 2X Long MSTR Daily Target ETF (MSTU) has announced a reverse stock split effective for Monday, August 24, 2026. MSTU2 will be...