NEW YORK (AP) -- Stocks that moved substantially or traded heavily Friday on the New York Stock Exchange and Nasdaq Stock Market:
US Airways Group Inc., up 26 cents at $10.66
AMR, the parent company of American Airlines, entered an agreement with the US Airways to allow them to discuss a merger.
Suntech Power Holdings Co. Ltd., down 2 cents at 88 cents
The solar panel maker cuts its 2012 shipment forecast. It's the latest Chinese solar energy producer to lower its shipment forecast.
Dollar General Corp., up $1 at $51.07
A Raymond James analyst maintained his "Strong Buy" rating on the retailer's stock, saying a price drop makes it a good time to buy it.
SAIC Inc., up 40 cents at $12.21
SAIC will separate into two public companies, a science and technology business and a government technical services business.
Esterline Technologies Corp., up $6.86 at $59.80
The aerospace and defense supplier kept its full-year outlook and its fourth-quarter results beat Wall Street expectations.
Zumiez Inc., down $3.03 at $29.19
The sports equipment retailer reported lower second-quarter earnings and forecast third-quarter profit below Wall Street expectations.
Gordmans Stores Inc., down $3.09 at $17.58
The clothing and home decor company said that its second-quarter net income rose, but it lowered its full-year revenue guidance.
OmniVision Technologies Inc., up 34 cents at $16.25
The image sensor maker posted better-than-expected first-quarter revenue and it raised its revenue outlook for the current quarter.