The Dow Jones industrial average continued its rollercoaster ride into the new year Wednesday, losing 21.32 points after gaining 44.44 points Tuesday. The Dow closed at 5,066.90. The New York Stock Exchange composite index also fell, 0.54 to close at 325.29. On the Big Board, advancers led decliners 1,231 to 1,127, with 759 unchanged. The technology-heavy Nasdaq composite index rose 1.35 to end the day at 997.22. The Standard & Poor's 500 stocks lost 2.06 to close at 606.38. The American Stock Exchange market value index gained 1.30 to close at 533.21. In London, gold closed at $397.75, up $0.65.