By Caroline Valetkevitch NEW YORK (Reuters) – Stock indexes mostly rose on Thursday as investors snapped up beaten-down shares, while the U.S. dollar climbed to its highest in nearly two years and the U.S. Treasury 10-year yield touched a three-year high following hawkish signals from the Federal Reserve. Wall Street stocks reversed early declines to end the day higher. Helping to boost the S&P 500, Pfizer Inc jumped 4.3%after the pharmaceutical company said it would buy privately held ReViral Ltd in a deal worth as much as $525 million, its second acquisition in less than six months. “Things …