S&P 500 FUTURES SLIDE WITH FED'S POWELL IN SPOTLIGHT

U.S. central bank widely expected to keep rates at 23-year high later Wednesday

Rio Tinto Group (RIO)

NYSE - NYSE Delayed Price. Currency in USD

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67.83

-1.18

(-1.71%)

At close: 04:00PM EDT

67.85

+0.02

(+0.03%)

Pre-Market:

09:00AM EDT