S&P 500 ends flat in volatile trade ahead of Fed meeting

NEW YORK (Reuters) - The S&P 500 ended little changed in a choppy trading session on Tuesday as the possibility of a partial government shutdown added to investors' jitters ahead of a highly anticipated meeting of the Federal Reserve.

The Dow Jones Industrial Average <.DJI> rose 82.52 points, or 0.35 percent, to 23,675.5, the S&P 500 <.SPX> gained 0.21 points, or 0.01 percent, to 2,546.15 and the Nasdaq Composite <.IXIC> added 30.18 points, or 0.45 percent, to 6,783.91.

(Reporting by April Joyner; Editing by James Dalgleish)