U.S. shares dropped Tuesday led by sharp declines in the technology sector following negative comments from German chipmaker Infineon. The Dow Industrials fell 58.05 to 9713.80, while the Nasdaq Composite lost 47.77 to 1882.57. Volumes were heavy. Company news was especially heavy Tuesday, as fourth-quarter corporate results rolled in. At the end of the session, about one-third of the S&P 500 had reported with about one-half to have reported by week's end. Leading the headlines was No. 2 discount retailer Kmart, which declared bankruptcy. But it was news out of the technology sector that dealers said held greater weight for the market's outlook. Infineon, not traded in the U.S., fell in Europe after warning that a recovery may not be in sight. Dealers said the news spilled over and knocked down the sector as a whole.