Wall Street

Shares of Groupon were up more than 7% Tuesday, but the ride since the daily deals start-up went public November 4 has been rough and downhill.

Ready for conspiracy theories? Folks emailing information about the Wall Street protests on Monday using Yahoo discovered their emails failed, and received a message from Yahoo claiming "suspicious activity." Does that sound suspicious?

The cancellation of Groupon's investor road show next week raises questions about the future of Groupon's initial public offering.

The disgraceful political fight over the debt ceiling has taken a toll on tech stocks.

Anonymous sources on Monday float another Facebook IPO rumor with a $100 billion price tag.

Back in late December, shares of Netflix were down 15 percent from an all-time high of 209.24 and chief executive Reed Hastings was warning Wall Street "shorts" that they were betting against the wrong company. Nearly two months later, Hastings looks prescient.

Two technology giants were being slapped around by Wall Street in early trading on Friday after reporting quarterly results that disappointed investors for different reasons.

Troubled Internet company Yahoo reported a decline in fourth-quarter revenue after the market closed Tuesday, causing shares to plunge in after-hours trading.

Shares of online search giant Google (NASDAQ: GOOG) rose in early trading Friday as Wall Street continued to digest the company's blowout fourth-quarter results and totally unexpected top-management change. By mid-morning, shares were up 7.62 to 634.39, or 1.2 percent above Thursday's market close of 626.77.

For a brief period after hours on Tuesday, shares of Apple (NASDAQ: AAPL) rose above Friday's closing price for the first time since chief executive Steve Jobs announced he was taking another medical leave.