U.S. stocks advanced on Monday, adding to their gains after the best week for at least two of the three major indexes — the S&P 500 and the Dow — since June. The S&P 500          SPX,         +1.19%        finished 44.59 points, or 1.2%, higher at 3,797.34. The Dow Jones Industrial Average          DJIA,         +0.54%        rose 417.06 points, or 1.3%, to climb to 31,499.62. The Nasdaq Composite          COMP,         +0.86%        advanced 92.90 points, or 0.9%, to close at 10,952.61.  The rally comes as investors cling to hopes that the Federal Reserve will slow the pace of its interest rate hikes after November, market strategists said.