US STOCKS SNAPSHOT-S&P 500 ends down for 4th day, Chevron drags

NEW YORK, Oct 10 (Reuters) - The S&P 500 fell for a fourthday on Wednesday, weighed down by disappointing news fromChevron and Alcoa as earnings season got underway.

Based on the latest available data, the Dow Jones industrialaverage slid 128.56 points, or 0.95 percent, to endunofficially at 13,344.97. The Standard & Poor's 500 Index

slid 8.91 points, or 0.62 percent, to finish unofficiallyat 1,432.57. The Nasdaq Composite Index lost 13.24points, or 0.43 percent, to close unofficially at 3,051.78.

(Reporting by Caroline Valetkevitch; Editing by Jan Paschal)

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