NEW YORK (

TheStreet

) --

HP

(HPQ) - Get Report

shares fell sharply in Thursday trade, following weaker-than-anticipated revenue and third-quarter guidance.

As PC and printer sales continued to weaken, the Dow component felt the strain, bringing in revenue of $29.7 billion. Analysts surveyed by

Thomson Reuters

were looking for $30.1 billion in revenue.

HP also lowered its guidance. Excluding items, HP expects fiscal 2012 earnings to be between $4.05 to $4.07 a share, below Wall Street's consensus estimate.

Shares of HP plunged 6.67% on more than twice its average daily volume to $17.92.

Salesforce.com

(CRM) - Get Report

reports

second-quarter earnings

after the close of trading, with much expected from the high-flying software maker.

Analysts polled by

Thomson Reuters

expect the San Francisco-based company to report earnings of 39 cents a share on $728.32 million in revenue.

Shares of Salesforce.com fell 0.55% to $147.80 in Thursday trade.

Apple

(AAPL) - Get Report

updated

Mac OS X Mountain Lion, with several fixes to improve the software's stability.

The fixes deal with issues in iMessages, audio issues in Thunderbolt, and tackle Microsoft Exchange server problems.

Shares of Apple fell 0.64% to $664.58 in Thursday trade.

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Written by Chris Ciaccia in New York

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