Stocks that moved substantially or traded heavily Wednesday on the New York Stock Exchange and Nasdaq Stock Market:
Meredith Corp., up $2.55 at $27.44
The publisher of Parents and Fitness magazines said its first-quarter net income fell, but results still topped expectations.
MF Global Holdings Ltd., down 16 cents at $1.70
The Wall Street Journal reported that the brokerage firm hired an investment bank to help decide whether it should sell itself or not.
RadioShack Corp., down $1.61 at $11.70
The electronics and wireless retailer reported third-quarter profit that fell far short of what Wall Street had been expecting.
DeVry Inc., down $7.72 at $38.36
The for-profit educator reported first-quarter earnings that missed Wall Street expectations as student enrollments leveled.
Amazon.com Inc., down $28.75 at $198.40
The online retailer said third-quarter net income fell 73 percent as it spent more money on building sales fulfillment centers.
iRobot Corp., up $4.94 at $33.24
The maker of the Roomba robot vacuum cleaner and bomb disposal robots for the military, reported strong third-quarter results.
Clearwire Corp., up 32 cents at $1.96
Sprint Nextel said it is in discussions with the wireless broadband company to make Sprint phones work on Clearwire's new network.
Panera Bread Co., up $17.92 at $133.64
The bakery-cafe chain reported a 27 percent jump in net income in the third quarter as customers spent more at its restaurants.