All three American indexes showed at least marginal gains Monday, after markets emerged from the historically tough seasonal period successfully.
The Dow Jones Industrials took on 56.93 points to 35,876.49, helped by gains in Boeing and Dow Inc., after hitting a fresh record at the open.
The S&P 500 gave back 4.62 points to 4,610.
The NASDAQ Composite jumped 68.25 points to 15.566.63.
The Dow Jones Industrial Average rose 5.8% in October. The S&P 500 rallied 6.9% last month and the technology-focused Nasdaq Composite added 7.3% in October.
For the year, the S&P 500 is up more than 22%.
Tesla, which became a $1-trillion company last week, continued its gains for the year with shares up more than 2%. Investors have been piling into bets on Tesla options as of late.
Stocks linked to an economic recovery, such as Ford and Occidental Petroleum, were also higher. Ford gained 1% and Occidental Petroleum popped 2.5%. Airlines and retailers were mostly in the green, while mega-cap tech stocks underperformed.
October's Institute for Supply Management's manufacturing index fell to 60.8 from September's 61.1. Economists were expecting the index to fall to 60.3. Any number above 50 is considered expansion.
Investors will also be monitoring the Federal Reserve's two-day meeting Tuesday and Wednesday. The central bank is widely expected to announce that it will begin to unwind its $120 billion in monthly bond purchases and end the program entirely by the middle of next year.
Prices for 10-year Treasurys were lower, raising yields to 1.59% from Friday's 1.56%. Treasury prices and yields move in opposite directions.
Oil prices gained 75 cents to $84.32 U.S. a barrel.
Gold prices jumped $7.50 to $1,791.400 U.S. an ounce.