U.S. stocks benchmarks closed solidly higher Wednesday, with the S&P 500 putting in the best daily gain since late August, as shares of energy compaies, information technology and financial climbed. The S&P 500 index SPX, +0.85% closed up 0.9% at around 4,480, marking its best point and percentage advance since Aug. 27. The Dow Jones Industrial Average DJIA, +0.68% closed up 0.7% at 34,814, while the Nasdaq Composite Index COMP, +0.82% advanced 0.8% at 15,161, marking its best day since Aug. 30. In economic data, the New York Fed’s Empire State business conditions index surged 16 points to 34.3 in September, the regional Fed bank said Wednesday.Separately, the import price index dropped 0.3% last month, the government said Wednesday, marking the first decline in 10 months. And data on U.S. industrial production showed a 0.4% rise in August after a 0.8% gain in the prior month, the Federal Reserve reported Wednesday.