Trade Hours & Calendar

Hours of Operation

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.
9:25 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

Calendar

HOLIDAY 2018 2019
New Years Day
January 1st
January 1st
Martin Luther King Jr. Day
January 15th
January 21st
Washington’s Birthday
February 19th
February 18th
Good Friday
March 30th
April 19th
Memorial Day
May 28th
May 27th
Independence Day
July 4th
July 3rd  *
July 4th
July 3rd   **
Labor Day
September 3rd
September 2nd
Thanksgiving Day
November 22nd
November 23rd *
November 28th
November 29th **
Christmas
December 25th
December 24th *
December 25th
December 24th **

 * Each market will close 3 hours early at 1:00 p.m. (1:15 p.m. for eligible options) on Wednesday, July 3, 2018, Friday, November 23, 2018 and Tuesday, December 24, 2018. All times are Eastern Time.

 ** Each market will close 3 hours early at 1:00 p.m. (1:15 p.m. for eligible options) on Wednesday, July 3, 2019, Friday, November 29, 2019 and Tuesday, December 24, 2019. All times are Eastern Time.

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