U.S. stocks rose on Wednesday as NVIDIA, the S&P 500’s most heavily weighted stock, gained ahead of its after-hours earnings report. Five of the S&P 500’s 11 sectors advanced, with technology, communications, and financial stocks leading the gains.Matthew Malley, chief market strategist at Miller Tabak, said the next significant move in U.S. stocks will be determined by tonight’s earnings and guidance from NVIDIA. It remains the most critical stock among the market’s most important “bellwethers.”