The U.S. stock market is rising on Wednesday, for now at least, ahead of a huge couple of tests for Wall Street.

The S&P 500 added 0.4 per cent after trimming an earlier jump of 1.1 per cent.

It's coming off a four-day losing streak, its longest in nearly three months, and has been shaking recently because of worries that stock prices have shot too high and that the U.S. Federal Reserve may not deliver as many revitalizing cuts to interest rates as expected.

The Dow Jones Industrial Average was down 98 points, or 0.2 per cent, as of 11 a.m. ET, after an earlier gain evaporated. The Nasdaq composite rose 0.8 per cent.

Constellation Energy helped lead the market and rallied 6.1 per cent after the U.S. Department of Energy said it's lending $1 billion US to help restart Constellation's nu

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