United, Activision Blizzard Rise After Addition to S&P 500

  • New companies added to benchmark stock index trigger buying
  • Pall Corp. to be dropped on Aug. 28; Hospira Inc. Sept. 2
Lock
This article is for subscribers only.

United Continental Holdings Inc. rose the most since November and Activision Blizzard Inc., the largest U.S. video-game company, also gained after the two companies were added to the Standard & Poor’s 500 stock index.

Activision becomes part of the index after the close of trading on Aug. 28, according to a statementBloomberg Terminal Thursday from S&P Dow Jones Indices LLC, part of McGraw Hill Financial Inc. The company, based in Santa Monica, California, joins Electronic Arts Inc. as one of two game publishers on the index of major U.S. companies. It replaces Pall Corp., which is being acquired.