Wall Street swings through another erratic day ahead of a couple of c…

NEW YORK (AP) — The U.S. stock market swung through another unsettled day of trading on Wednesday, ahead of a couple of crucial tests for Wall Street.

The S&P 500 rose 0.4% after veering between a small loss and a leap of 1.1% earlier in the day. That broke a four-day losing streak, the longest in nearly three months for the index, which has been shaking because of worries…