Take a look at some of Wednesday's midday movers:
Petrobras - Brazil's state-owned oil company fell after releasing third-quarter results after months of delays, but did not include a write down from a corruption scandal.
Advent Software - The provider of software to financial companies rose after Bloomberg reported SS&C Technologies Holdings was interested in acquiring it.
Caesars Entertainment - The casino operator rose after a federal judge ruled the company's Chapter 11 case will proceed in Illinois, denying a motion by several creditor groups who wanted the case heard in Delaware.
Brinker International - The operator of the Chili's and Maggiano's restaurants fell on mixed fourth-quarter results.
U.S. Steel - The steel manufacturer rose after reporting its first profitable year since 2008.
Abiomed - The medical-device maker gained after it reported better-than-expected third-quarter earnings.
Exxon Mobil - The oil producer and others including Chevron, Hess and ConocoPhillips fell after oil-inventory stockpiles hit their highest level since 1982.
Rockwell Automation - the maker of automation systems rose after posting better-than-expected first-quarter earnings.
Hanesbrands - the apparel seller climbed after raising its quarterly dividend.
Ford Motor - The car manufacturer declined after recalling more than 221,000 cars and vans.
Reynolds American - The tobacco producer rose after shareholders approved its merger with Lorillard.
Sears Holdings - The retailer declined after cutting 115 corporate jobs.
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