Early movers: LEN, UA, TSLA, NRG, SNE, FSLR & more By: CNBC.com News March 20, 2014 at 07:44 AM EDT These are the stocks posting the largest moves before the bell. Read More >> Related Stocks: Ameren Corp ConAgra Foods First Solar GUESS Goldman Sachs Group Herman Miller Inc Lennar Corp NRG Energy Sony Corp Tesla, Inc. Under Armour