[January 30, 2013] Amazon.com, RIM, Chesapeake are market movers Tweet (Associated Press Via Acquire Media NewsEdge) NEW YORK -- Stocks that moved substantially or traded heavily Wednesday on the New York Stock Exchange and Nasdaq Stock Market: NYSE Chesapeake Energy Corp., up $1.14 at $20.11 Aubrey McClendon, the energy company's CEO, is leaving Chesapeake amid philosophical differences with its new board of directors. Robert Half International Inc., up $2.21 at $35.74 The staffing company said fourth-quarter profit jumped almost 38 percent as demand grew for temporary and full-time workers. Manpower Inc., up $3.23 at $51.78 Fourth-quarter net income dropped 16 percent at the staffing company, but its adjusted results topped Wall Street expectations. MeadWestvaco Corp., down $1.30 at $31.63 Despite posting a fourth quarter profit, the packaging company's results fell short of what Wall Street expected. Freescale Semiconductor Ltd., up $1.84 at $14.23 The chip maker reported fourth-quarter results and offered a first-quarter revenue forecast that topped Wall Street's expectations. Nasdaq Amazon.com Inc., up $12.41 at $272.76 The world's biggest online retailer impressed investors with strengthening profit margins in its fourth-quarter earnings report. Research In Motion Ltd., down $1.88 at $13.78 Shares of the company fell after the smartphone maker's CEO introduced the long-delayed BlackBerry 10 in New York. Copano Energy LLC, up $4.90 at $38.03 Kinder Morgan Energy Partners LP said it will buy the natural gas company for about $3.2 billion in stock. (c) 2013 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. [ Back To TMCnet.com's Homepage ]