The Gap Inc., up $2.18 at $40.99
Thanks to strong sales at its Old Navy and Gap stores, the retailer said sales at stores open at least a year rose 7 percent in April.
Molycorp Inc., up $1.75 at $7.34
The Greenwood Village, Colo.-based miner of rare earth products reported first-quarter results that beat Wall Street expectations.
ArcelorMittal, up 57 cents at $13.13
The steelmaker posted a first-quarter loss, but it reiterated its forecast and expects to make $7.1 billion in profits for the year.
Hess Corp., down $1.66 at $69.30
The oil company will split the CEO and chairman positions as it fights off a campaign by a major shareholder for a leadership change.
True Religion Apparel Inc., up $2.38 at $31.82
The high-end denim seller has agreed to a buyout offer of about $826 million from investment management firm TowerBrook Capital.
Priceline.com Inc., up $27.91 at $765.41
The travel website operator's first-quarter net income increased on improved hotel and international business during the period.
Nvidia Corp., up 63 cents at $14.54
The chipmaker's quarterly net income rose 29 percent, largely because of wider profit margins and better sales of its latest graphics chips.
Air Methods Corp., down $1.67 at $35.19
The air medical transportation company posted a larger-than-expected loss for its first quarter because of weaker revenue.