TD Ameritrade Holding Corp., up 58 cents at $19.03
The online brokerage said that its fiscal first-quarter profit fell 3 percent, but its results still beat analysts' expectations.
Goodrich Petroleum Corp., up 67 cents at $10.32
A BMO Capital Markets analyst upgraded the oil and natural gas company's stock, saying shares could rise after a recent selloff.
Packaging Corp. of America, down $1.21 at $38.81
The producer of containerboard and corrugated packaging issued an outlook for the current quarter that was below expectations.
Kansas City Southern, up $4.04 at $91.67
The railroad operator said that its fourth-quarter net income fell 4 percent, but its results still topped Wall Street expectations.
SeaCube Container Leasing Ltd., up $2.84 at $23.14
The shipping-container leasing company agreed to be acquired by the Ontario Teachers' Pension Plan for $466.9 million.
Research In Motion Ltd., up $2.06 at $17.90
Shares of the BlackBerry maker rose after its CEO was quoted in a German newspaper saying the company is considering strategic options.
Western Digital Corp., up $2.55 at $47.36
The computer hard drive maker said it acquired Arkeia, a private data protection company, to increase products for smaller businesses.
The online pet pharmacy said its net income jumped 17 percent as it continued to cut costs.