Wells Fargo & Company is an American multinational banking and financial services holding company which is headquartered in San Francisco, California, with "hubquarters" throughout the country. It is the largest bank in the world by market value. It is the third largest bank in the U.S. by assets and the largest bank by market capitalization. Wells Fargo surpassed Citigroup Inc. to become the third-largest U.S. bank by assets at the end of 2015. Wells Fargo is the second largest bank in deposits, home mortgage servicing, and debit cards. Wells Fargo ranked 10th among the Forbes Global 2000 (2015) and the 30th largest company in the United States, according to Fortune 500 (2015).