Wall Street picked up Monday where it left off at the end of last week with the S&P erasing all its losses for the year and investors confident the economy is coming back to pre-COVID-levels. The Dow Jones Industrial Average rose 461 points, or nearly 2%. The Nasdaq and the S&P 500 were both 1% higher. Monday’s 39-point gain for the S&P puts it right back in the black, gaining all the ground it lost since the coronavirus outbreak began to be fully felt in March.   Travel-related stocks led Monday’s gains on Wall Street, including United Airlines, American Airlines, and Carnival Cruises. The price of leading U.S. retailer, Kohl’s, was also 8% higher. Major European indexes in London, Frankfurt and Paris were all a fraction lower Monday, while major Asian indexes closed on an upswing.