U.S. stocks open lower as investors digest results from IBM, Morgan Stanley and more

U.S. stocks opened lower on Wednesday as investors digested a batch of earnings including results from Morgan Stanley
MS,
-0.48%
and International Business Machines Corp.
IBM,
-1.53%
The S&P 500
SPX,
-0.37%
fell by 19 points, or 0.5%, to 4,135. The Nasdaq Composite
COMP,
-0.64%
declined by 90 points, or 0.8%, to 12,061. The Dow Jones Industrial Average
DJIA,
-0.33%
fell by by 30 points, or 0.1%, to 33,941.