5 things to know before the stock market opens Tuesday, August 8

Here are the most important news items that investors need to start their trading day:1. Earnings delightThe Dow Jones Industrial Average rose more than 400 points, or 1.16%, Monday to kick off the week. Meanwhile, the S&P 500 rose 0.9%, while the Nasdaq Composite, which was dragged down by Tesla, increased just 0.61%....

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