Trade Hours & Calendar

Hours of Operation

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.
9:25 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 2017 2018
New Years Day
January 1st
(Observed Monday, January 2nd)
January 1st
Martin Luther King Jr. Day
January 16th
January 15th
Washington’s Birthday
February 20th
February 19th
Good Friday
April 14th
March 30th
Memorial Day
May 29th
May 28th
Independence Day
July 4th
July 3rd  *
July 4th
July 3rd  *
Labor Day
September 4th
September 3rd
Thanksgiving Day
November 23rd
November 24th *
November 22nd
November 23rd *
December 25th
December 25th
December 24th *

 * Markets will close at 1:00pm on these days 

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