By STAN CHOE, AP Business Writer
NEW YORK (AP) — Stocks rallied in a roller-coaster day of trading on Wall Street Wednesday after the Federal Reserve hiked interest rates by the biggest margin since 1994, but also said such mega-hikes would not be common. The Fed did signal that more increases are on the way as it tries to tackle the worst inflation in four decades. The increase of three-quarters of a percentage point was three times as big…