Major U.S. stock indexes fell more than 2 percent in early Monday trading, with banks and energy companies among the biggest decliners, as renewed fears of a Greek debt default prompted investors to book some of last week's gains and turn to safer assets.

The Dow Jones industrial average <.DJI> lost 229.10 points, or 1.99 percent, to 11,279.99. The Standard & Poor's 500 Index <.SPX> fell 25.65 points, or 2.11 percent, to 1,190.36. The Nasdaq Composite Index <.IXIC> dropped 54.54 points, or 2.08 percent, to 2,567.77.