Wells Fargo Advisors, LLC, is a subsidiary of Wells Fargo, located in St. Louis, Missouri. It is the second largest brokerage firm in the United States as of October 1, 2007 with $1.17 trillion retail client assets under management.The subsidiary was formerly known as Wachovia Securities until May 1, 2009, when it legally changed names following the Wells Fargo's acquisition of Wachovia Corporation.