World shares, US futures gain as most Asian markets stay closed for Lunar New Year holidays

World shares and U.S. futures are higher, with Japan's benchmark gaining more than 1%. Most markets in Asia stayed closed for Lunar New Year holidays. Oil prices advanced. Japan reported its exports jumped nearly 17% in January from a year earlier. That was partly due to seasonal factors, but the AI boom also boosted shipments of computer chips and other components. On Tuesday, the S&P 500 rose 0.1% and the Dow Jones Industrial Average and Nasdaq composite each also added 0.1%. Paramount Skydance helped lead the market after Warner Bros. Discovery allowed it to make its best and final offer to buy the entertainment company.