How SIPs Power Equities and Options Markets
How the U.S. Securities Information Processors emerged from Regulation NMS, how they work today, and what the upcoming Consolidated Tape Plan will change.
Read More →Articles
In-depth articles and guides from Theta Data.
Extension of OPRA Trading Hours
Starting July 13, 2026, OPRA will extend trading hours to 7:30 a.m. - 5:00 p.m. ET for select multi-listed single-stock options.
Read More →