Market Share Statistics - May 2013

 

NASDAQ OMX PHLX The NASDAQ Options Market NASDAQ OMX BX Options
U.S. Equity Options Market Share U.S. Equity Options Volume U.S. Equity Options Market Share U.S. Equity Options Volume U.S. Equity Options Market Share U.S. Equity Options Volume
19.37% 68,113,565 8.77% 30,832,323 1.01% 3,556,362