Morning Market Losers By: Benzinga via Benzinga May 01, 2014 at 09:44 AM EDT SLM (NASDAQ: SLM) shares tumbled 64.35% to $9.18 after gaining 0.10% on Wednesday. Credit Suisse initiated coverage on SLM with a ... Read More >> Related Stocks: American Railcar Ind Quicklogic Corp SLM Corp Stamps.com Inc YRC Worldwide