Tuesday, May 22, 2012

Alexion Pharmaceutical (ALXN) joins the S&P 500

Shares of Alexion Pharmaceuticals (ALXN) will replace those of Motorola Mobility Holdings (MMI) within the S&P 500 index on Friday, April 25th . MMI's departure from the index is a result of its recent takeover by Goolge. Shares of ALXN jumped 4.3%, closing at $92.54 on abnormally high trading volume.Throughout the day 5.6 million shares were traded compared to the daily average of 1.2 million shares. The stock price ranged from $91.80-$94.36, after previously closing at $91.80 the day before.

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