U.S. stocks are opening sharply lower, following losses overseas.

Asian markets closed mostly lower as investors fretted over the pro-democracy protests in Hong Kong, where the main Hang Seng index fell 1.9 percent

The Dow Jones industrial average fell 153 points, or 0.9 percent, to 16,957 as of 9:35 a.m. Eastern time Monday.

The Standard & Poor's 500 index lost 16 points, or 0.8 percent, to 1,966. The Nasdaq composite fell 40 points, or 0.9 percent, to 4,471.

DreamWorks Animation soared 18 percent as media reports suggest the animation studio is in discussions with SoftBank Corp. about a possible deal.

Bond prices rose. The yield on the 10-year Treasury note fell to 2.48 percent.