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The S&P 500 is down 0.5%, trading near 1773, while the Dow Jones Industrial Average is down 0.8%, trading near 15,710. Both are at their lows of the day.
Barring an afternoon comeback, this will be the third day in a row that stocks have closed in the red, and the 8th down day in the last 10 sessions.
10-year U.S. Treasury futures are down 0.2%, while the yield on the 10-year note is 2.87%, 2 basis points above yesterday's close.