ADF Announcements

Posted: November 19, 2015

Holiday Reminder Regarding ADF Market Data

In observation of the Thanksgiving holiday, the ADF System will be closed on Thursday, November 26, 2015. As stated in the data feed interface specifications, FINRA may send out unmarked test data via its data feeds on market holidays. Direct data feed subscribers, including recipients of ADF data, should take the necessary precautions to prevent data corruption.  
Please be advised that the ADF system will close early on Friday, November 27, 2015 at 1 p.m., E.T. See the table below for a schedule of modified hours. Thank you for your attention to this matter. Please contact FINRA Operations at (866) 776-0800 if you have any questions.

Market Session Normal Hours Modified Hours for
Friday, November 27, 2015
Pre Market Session 8 a.m. to 9:30 a.m. 8 a.m. to 9:30 a.m.
Regular Market Session 9:30 a.m. to 4 p.m. 9:30 a.m. to 1 p.m.
Post-Market Trading Session 4 p.m. to 6:30 p.m. 1 p.m. to 3:30 p.m.