Stocks that moved substantially or traded heavily Friday on the New York Stock Exchange and Nasdaq Stock Market:
DeVry Inc., down $8.90 at $44.49
The for-profit school chain's new student enrollments at its namesake university dropped more than 25 percent.
Midas Inc., up $1.19 at $7.77
The auto repair company is exploring a possible sale, merger or another deal that would increase value for its stockholders.
Molycorp Inc., up $4.76 at $58.90
The rare earths miner posted a quarterly profit as it ramped up production, and said the expansion of its flagship facility was on target.
Nordstrom Inc., up $1.95 at $44.28
The upscale department store chain lifted its guidance for the year after its second-quarter profit grew 20 percent.
J. C. Penney Co., down 28 cents at $26.55
The department store retailer's quarterly profit was flat after it aggressively marked down prices. Guidance was below expectations.
Goodyear Tire & Rubber Co., up 91 cents at $13.48
The tire maker's CFO was confident that the company could stay profitable despite rising costs for raw materials.
MannKind Corp., up 42 cents at $2.79
The drugmaker confirmed with federal regulators the design of two key late-stage clinical trials for its inhaled insulin.
Nvidia Corp., down 53 cents at $12.88
The computer chip maker expects more revenue growth in the current quarter than Wall Street analysts had forecast.