Major U.S. indexes closed Monday on a mixed note, with the Dow Jones Industrial Average rising 0.1% to 45,216.14, while the S&P 500 fell 0.39% to 6,343.72 and the Nasdaq declined 0.7% to 20,794.64.These are the top stocks that gained the attention of retail traders and investors through the day:Micron Technology Inc. (NASDAQ:MU)Micron’s stock fell 9.88%, closing at $321.80. It reached an intraday high of $362.81 and a low of $318.40, with a 52-week range of $61.54 to $471.34. In the after-hours trading, the ...