Activision Blizzard, Inc. is an American interactive entertainment company. Headquartered in Santa Monica, California and founded in 2008 through the merger of Vivendi Games and Activision, the company is traded on the NASDAQ stock exchange under the ticker symbol NASDAQ: ATVI, and since 2015 has been one of the stocks that make up the S&P 500. Activision Blizzard currently includes five business units: Activision, Blizzard Entertainment, Major League Gaming, Activision Blizzard Studios, and King Digital Entertainment.
The company owns and operates additional studios under an independent studios model, including Treyarch, Infinity Ward, High Moon Studios and Toys for Bob, and its titles have broken a number of release records. Call of Duty: Black Ops III grossed $550 million in worldwide sales during its opening weekend in 2015, making it the biggest entertainment launch of the year. The company's franchises also include Activision's Call of Duty,Destiny, and Skylanders; Blizzard Entertainment's World of Warcraft, StarCraft, Diablo, Hearthstone, Heroes of the Storm, and Overwatch; and King's Candy Crush Saga, Pet Rescue Saga, and Farm Heroes Saga. As of September 2017, it is the largest game company in the Americas and Europe in terms of revenue and market capitalization.