Stocks that moved substantially or traded heavily Friday on the New York Stock Exchange and Nasdaq Stock Market:
Clorox Corp., up $6.12 at $74.55
Activist investor Carl Icahn is offering to take the consumer products company private in a $10.2 billion deal.
Petrohawk Energy Corp., up $14.68 at $38.17
BHP Billiton Ltd. said it will buy the oil company for $12.1 billion, which would give it more access to U.S. shale gas assets.
Citigroup Inc., down 64 cents at $38.38
The New York-based bank reported its sixth straight quarter of profit as losses from failed loans declined.
Google Inc., up $68.68 at $597.62
Under its new CEO Larry Page, the Internet search leader posted second-quarter earnings that were far better than expected.
News Corp., up 21 cents at $15.64
Two top executives of the media company, in the U.S. and in Britain, resigned as its phone hacking scandal widened.
Mattel Inc., up 50 cents at $27.29
The toy maker said strong sales of Barbie and toys tied to the film "Cars 2" helped its second-quarter net income rise 56 percent.
Flir Systems Inc., down $3.19 at $28.92
The maker of thermal-imaging systems said that weak demand in its government-systems division weighed on second-quarter results.
Vical Inc., up 31 cents at $4.61
The drug developer said that it signed a licensing deal with Astellas Pharma to develop a drug for stem-cell transplant patients.