CBOE historical data of US shares have expanded to provide even more historical data.
Pitch data is a daily book of the book book, in real time, with full order transparency books, including any prosthetic, modification and cancellation of a message.
The data is now expanding until January 2010 for the CBOE BZX Exchance Exchange in October 2010 for the CBOE BYX EXPONIX EXCHANGE and in February 2011 for CBOE EDGA and EDGX stock exchanges.