The Dow closed below 10,000 on Thursday for the first time since early July a day ahead of an expected downward revision in U.S. second-quarter economic growth and a major speech by the Federal Reserve chairman.

According to the latest available figures, the Dow Jones industrial average <.DJI> dropped 74.25 points, or 0.74 percent, to 9,985.81. The Standard & Poor's 500 Index <.SPX> lost 8.09 points, or 0.77 percent, to 1,047.24. The Nasdaq Composite Index <.IXIC> fell 22.85 points, or 1.07 percent, to 2,118.69.

The last time the Dow finished below 10,000 was July 6.

(Reporting by Chuck Mikolajczak; Editing by Kenneth Barry)

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