Late selling leaves stocks down for third straight month

Nine of the 10 market sectors fell Monday — only utilities managed a slight gain — as investors lost enthusiasm for stocks after two straight weekly gains. Health care stocks fell furthest as Endo International, Mylan and Mallinckrodt all fell sharply.

The Dow Jones industrial average fell 123 points, or 0.7 percent, to 16,516. The Standard & Poor's 500 index lost 15 points, or 0.8 percent, to 1,932. The Nasdaq composite fell 32 points, or 0.7 percent, to 4,557.

For the month, the Dow managed a gain of 0.3 percent, while the S&P 500 fell 0.4 percent and the Nasdaq fell 1.2 percent.