Nasdaq August European Equity Options Volumes At 6.1M Contracts, Down From 7.1M Last Year
September 03, 2015 at 16:33 PM EDT
http://files.shareholder.com/downloads/NDAQ/664919013x0x587205/a5383372-de39-4ac7-b87c-d1fe745b0f96/Monthly_Reporting_Sheet.pdf