Stocks begin to decline as S&P 500 pulls back from 6-week high; The Dow is aiming for its best October yet

U.S. stocks opened lower on Monday as the S&P 500 retreated from Friday’s six-week high as investors wait for the Federal Reserve to raise interest rates again later this week. S&P 500
SPX,
-0.46%

fell 25 points, or 0.7%, to 3,875. The Dow Jones Industrial Average
DJIA,
-0.19%

fell 199 points, or 0.6%, to 32,662. The Nasdaq Composite
comp,
-0.72%

fell 69 points, or 0.6%, to 11,033. All three major indexes had a stellar October, even as the Nasdaq lagged. The Dow ended Friday’s session at its highest close in two months, leaving it on track to post its best monthly performance since the 1970s and its best October gain since its inception.