Stocks that moved substantially or traded heavily Friday on the New York Stock Exchange and Nasdaq Stock Market:
RSC Holdings Inc., up $6.58 at $17.95
United Rentals Inc. said it has agreed to buy rival equipment rental company RSC Holdings for about $1.9 billion in cash and stock.
Cameron International Corp., up $2.69 at $47.55
The maker of the blowout preventer that failed to stop last year's Gulf oil spill agreed to pay $250 million to BP in a settlement.
Quiksilver Inc., up 39 cents at $3.46
The clothing company posted a profit in its fiscal fourth quarter as the company sold more of its surf-inspired clothing and gear.
Cablevision Systems Corp., down $1.18 at $12.75
The cable television company and Internet service provider said its Chief Operating Officer Tom Rutledge will resign this month.
Frontline Ltd., up 34 cents at $3.83
The Bermuda-based tanker owner said that it raised $285 million from investors to help pay for its ongoing restructuring plan.
Research In Motion Ltd., down $1.69 at $13.44
The BlackBerry smartphone maker said that new phones deemed critical to the company's future will be delayed until late 2012.
Adobe Systems Inc., up $1.74 at $28.20
The software maker said that its fourth-quarter net income fell, but revenue rose and results beat Wall Street expectations.
Charming Shoppes Inc., up 15 cents at $4.79
The New York Post reported that dressbarn owner Ascena Retail Group is interested in buying Fashion Bug stores from Charming Shoppes.