Activision Blizzard Storms To New All-Time Off Being Added To The S&P 500 Index By: Benzinga via Benzinga August 28, 2015 at 14:32 PM EDT Joel Elconin is the co-host of Benzinga's #PreMarket Prep, a daily trading idea radio show. Activision Blizzard, Inc. ... Read More >> Related Stocks: Activision Blizzard