U.S. stocks rose on Wednesday, with the Dow Jones industrial average closing at a record high, boosted by the latest merger news and some strong corporate earnings. Time Warner Inc shares jumped 17.1 percent to $83.13 and ranked as the S&P 500’s best performer after Twenty-First Century Fox confirmed it made an $80 billion takeover offer for the company that was turned down. Twenty-First Century Fox shares fell 6.2 percent to $33.00.