Expert Trader Sees Upside Potential At TD Ameritrade, Charles Schwab By: Benzinga via Benzinga April 30, 2015 at 18:25 PM EDT Serge Berger is a weekly guest on #PreMarket Prep, a daily trading idea radio show hosted by Joel Elconin and Dennis Dick. The ... Read More >> Related Stocks: Amtd Idea Group Charles Schwab