Nasdaq | featured news

Groupon, the company that pioneered online group discounts, saw its stock climb by nearly a third in its public debut Friday, showing strong demand for an Internet company whose business model is considered unsustainable by some analysts. Groupon's stock jumped $6.40, or 32 percent, to $26.40 in late morning Friday after trading began at about 10:45 a.m. Earlier, the stock was trading as high as $31.14. Big fluctuations are common for companies that have just gone public as investors gauge what to do with the stock. The stock is trading on the Nasdaq Stock Market under the ticker symbol "GRPN."

Two companies with quirky names, Ubiquiti Networks and Zeltiq Aesthetics, made their public debuts earlier this month with listings on the Nasdaq Stock Market. Each company's stock went up modestly on the first day of trading.

Nasdaq OMX has stepped up its opposition to the planned merger between NYSE Euronext and Deutsche Börse and said the deal would "irrevocably destroy" competition in Europe's listed-derivatives markets, just as the European Commission nears a decision on the tie-up.

Main stock exchanges Nasdaq, NYSE and BATS expect to open trading on Monday as usual despite Hurricane Irene, although a final decision, especially on opening the Big Board floor, is yet to come.

Stocks are edging higher following a four-week losing streak. The Dow Jones industrial average is up 23 points, or 0.2 percent, to 10,844 in midday trading Monday. It had been up as many as 203 points. The Dow fell 4 percent last week as worries deepened that the U.S. could slip into a recession. The S&P 500 rose less than a point to 1,124. The Nasdaq was up less than a point at 2,342.

Investors fled Wall Street in the worst stock-market selloff since the middle of the financial crisis in early 2009 in what has turned into a full-fledged correction. The Dow and the S&P tumbled more than 4 percent on Thursday and the Nasdaq lost 5 percent on fear the United States is staring at another recession and that Europe's sovereign debt crisis is swallowing two of its largest economies.

Nasdaq and IntercontinentalExchange are withdrawing their proposed $11 billion bid for the parent of the New York Stock Exchange after recognizing they would not receive regulatory approval for the transaction.

Nasdaq OMX and IntercontinentalExchange said they will take their bid for NYSE Euronext directly to shareholders after being rebuffed twice by the exchange.

Caterpillar drove the Dow Jones industrial average higher Friday after the company reported a huge gain in first-quarter earnings. The world's largest maker of mining and construction equipment rose 2.5 percent after its earnings increased more than five-fold. The company also raised its sales and profit forecast for the year.

The parent company of the New York Stock Exchange said Sunday that it rejected an $11.3-billion bid from Nasdaq and IntercontinentalExchange to buy the company.