Dec. 21: Unusual Volume Leaders

Published Mon, Dec 21 20093:10 PM ESTUpdated Wed, Mar 17 201011:26 PM EDT

Stocks Trading 50% Over Their 10-Day Avg.

What follows is a look at stocks in the S&P 500 displaying unusual volume in today's trading session.

Some of the highlights include: ConAgra Food (CAG), Walgreens (WAG) and Alcoa (AA).

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Stocks Trading 50% Over Their 100-Day Avg.

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