Tech Five: Facebook shares slide off earnings

Another social network is watching its shares plunge in morning trading. Let's look at the tech stocks to watch Wednesday:

Facebook. Shares of the social giant dropped 6.3% in pre-market trading after warning investors of a revenue slowdown in the fourth quarter. Facebook CFO David Wehner said expenses would be "significant" in future quarter as it beefs up investments in existing products and weighs additional acquisitions. This year, Facebook scooped up virtual reality company Oculus VR and messaging service WhatsApp.

Groupon. The daily deals service will report third quarter earnings after the markets close Thursday. Last quarter, Groupon reported a loss of $22.9 million off revenue of $751 million. The company forecast third quarter revenue between $720 million and $770 million.

LinkedIn. The social network targeting professionals will report third quarter earnings after the bell Thursday. Analysts project revenue of $557 million with an earnings per share of 47 cents, according to estimates compiled by Bloomberg. Last quarter, LinkedIn sales and profits crushed Wall Street forecasts.

AT&T. The Federal Trade Commission is suing the wireless giant for allegedly slowing the data speeds of millions of smartphone customers who held unlimited data plans. The FTC claims AT&T throttled the data of at least 3.5 million unique customers more than 25 million times.

Microsoft. The company is expected to release the latest version of its Office software suite to launch during the second half of 2015, reports ZDNet. Microsoft is also working on the latest version of its Windows operating system, also expected to launch next year.

Follow Brett Molina on Twitter: @brettmolina23.

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