Market Replay has been enhanced to allow same-day replays of the market using NASDAQ-validated data for U.S.-listed equity securities. Previously, Market Replay provided historical data that was accessible to users beginning with the previous trading day.

Additionally, the market replays now include every executed trade along with the corresponding best bid and offer quote activity, to provide investors a complete view of the market activity in a particular stock, down to the millisecond, during the requested replay period.

Market Replay has also been enhanced to allow users to quickly access data for NYSE- and Amex-listed equity securities, in addition to the data that was previously provided for NASDAQ-listed securities.

"With an enhanced NASDAQ Market Replay, all investors can now instantly discover in even greater detail exactly how a trade was executed," stated NASDAQ OMX Executive Vice President Adena Friedman. "In an affordable and easy-to-use visual tool, Market Replay allows users to confirm best execution and learn more about intricacies of trading in the U.S. equity markets."

NASDAQ Market Replay provides replay and analysis of quote and trade activity in simulated real-time, with a customizable zoom feature to view events at the millisecond level to see exactly what happened.

Following the completion of a trade, Market Replay allows users to analyze whether their trade received best execution and permits compliance officers to confirm if a trade met compliance standards.

Market Replay can be used for a variety of functions by all market participants including institutional and retail investors, professional and non-professional traders, and compliance officers. Market Replay enables users to:

• Review a situation for analysis or training;
• Analyze whether a trade complied with best-execution requirements;
• Review interesting situations and missed opportunities;
• Share a replay with clients to confirm best execution quality;