Early movers: BIIB, XRX, MSFT, AMZN, SBUX & more By: CNBC.com News April 24, 2015 at 08:09 AM EDT These are the stocks posting the largest moves before the bell. Read More >> Related Stocks: Amazon.com American Airlines Gp Astrazeneca Plc ADR Best Buy Biogen Idec Cisco Systems Comcast Corp Comcast Corp Goldman Sachs Group Google, Inc. Microsoft Simon Property Group Starbucks Corp Time Warner Cable Xerox Corp