The Nasdaq Composite surged 2.1% on Monday after falling 3.6% on Monday. The S&P 500 rallied 1.6%. The Dow Jones Industrial Average gained 622 points, or 1.4%. Stocks sold off on Friday in the wake of tariff threats, but the temperature was already lower over the weekend. The president told his Truth Social followers, "Don't worry about China,†and Wall Street took him up on that. President Donald Trump's social media post gave Wall Street a green light to pile back into risk. ...