Activision Blizzard, Inc. is an American video game holding company based in Santa Monica, California. It was founded in July 2008 through the merger of Activision, Inc. and Vivendi Games. It is traded on the NASDAQ stock exchange under the ticker symbol ATVI, and since 2015 has been a member of the S&P 500 Index. Activision Blizzard currently includes five business units: Activision Publishing, Blizzard Entertainment, King, Major League Gaming, and Activision Blizzard Studios. The company owns and operates additional subsidiary studios, as part of Activision Publishing, including Treyarch, Infinity Ward, High Moon Studios, and Toys for Bob. Among major intellectual properties produced by Activision Blizzard are Call of Duty, Crash Bandicoot, Guitar Hero, Tony Hawk's, Spyro, Skylanders, World of Warcraft, StarCraft, Diablo, Hearthstone, Heroes of the Storm, Overwatch, and Candy Crush Saga. Under Blizzard Entertainment, it invested in esports initiatives around several of its games, most notably Overwatch and Call of Duty. Activision Blizzard's titles have broken a number of release records. Wikipedia