November 2011 FIF Market Share And Market Dynamics Reports – Executive Summary

Date 12/12/2011

U.S. Equities Market Share

Share volumes traded across Tape A, B, and Cdecreased 15% monthly and 0.5% annually to154 billion shares (see chart).
In November 2011, off-exchange tradingaccounted for 30% of the shares traded inNMS Equity Securities.
Share volumes in NYSE-listed securitiesdecreased 16% monthly and 3% annually to 85billion shares.
NASDAQ-listed securities traded overexchange decreased 12% monthly and 2%annually to 39 billion shares.

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