Trade Hours & Calendar

MIAX Options

TIME (US EST ZONE)	DESCRIPTION
6:00 AM	Start of System Hours Dissemination of messages over the Top of Market Feed (TOM), MIAX Order Feed (MOR), Administrative Information Subscriber Feed (AIS) and Complex Top of Market Feed (cTOM)
7:00 AM	MIAX Express Interface (MEI) Startup Firms can connect to the MIAX Express Interface (MEI) and download products.
7:30 AM	Firm Interface Startup Time Firms can connect to the FIX Gateway and conduct pre-market order activity. All order activity during this time period WILL affect the live book. Firms can send messages over MEI. All MEI activity during this period, prior to the Live Quote Window (LQW), will be acknowledged for connectivity verification purposes, but WILL NOT affect the live quote state.
9:15 AM	Live Quote Window (LQW) Start of Quoting. Quotes entered during LQW WILL be used in Opening process.
9:30 AM - 4:00 PM	Trading Session for Equity Options (ends at 1:00 pm on early closing days) MIAX stops accepting Orders and Quotes at the end of the Trading Session
9:30 AM - 4:15 PM	Trading Session for select ETF and Index Options (ends at 1:15 pm on early closing days) MIAX stops accepting Orders and Quotes at the end of the Trading Session
4:25 PM	End of Order Cancel Acceptance MIAX will stop accepting cancels for orders (ends at 1:25 pm on early closing days)
4:25 PM - 5:00 PM	Dissemination of Nothing Done Messages (1:25 pm to 2:00 pm on early closing days) Final trade corrections and clearing adjustments

HOLIDAY	2021	2022
New Years Day	Friday, January 1^st	-
Martin Luther King Jr. Day	Monday, January 18^th	Monday, January 17^th
Washington's Birthday	Monday, February 15^th	Monday, February 21^st
Good Friday	Friday, April 2^nd	Friday, April 15^th
Memorial Day	Monday, May 31^st	Monday, May 30^th
Independence Day	Monday, July 5^th (July 4^th holiday observed)	Monday, July 4^th
Labor Day	Monday, September 6^th	Monday, September 5^th
Thanksgiving Day	Thursday, November 25^th Friday, November 26^th*	Thursday, November 24^th Friday, November 25^th**
Christmas	Friday, December 24^th (Christmas holiday observed)	Friday, December 26^th (Christmas holiday observed)

2021: Each market will close 3 hours early at 1:00 p.m. on * Friday, November 26, 2021. All times are Eastern Time.

2022: Each market will close 3 hours early at 1:00 p.m. on ** Friday, November 25, 2022. All times are Eastern Time.

Have any questions or concerns? Feel free to Contact Us.