US stocks waver between gains and losses in early trading

U.S. stocks are wavering between small gains and losses in the first few minutes of trading, while markets were mostly lower in Europe and Asia.

The Dow Jones industrial average was up 23 points, or 0.1 percent, at 16,277 as of 9:30 a.m. Eastern time Thursday.

The Standard & Poor's 500 index was little changed at 1,942. The Nasdaq composite edged up six points, or 0.1 percent, to 4,762.

Krispy Kreme Doughnuts plunged 17 percent after the company lowered its outlook following disappointing second-quarter results.

Lululemon sank 8 percent after the high-end apparel maker predicted profits for the current quarter that were lower than Wall Street analysts were expecting.

Bond prices fell slightly. The yield on the 10-year Treasury note rose to 2.21 percent.