U.S. stocks traded lower toward the end of trading, with the S&P 500 falling around 0.4% on Tuesday. The Dow traded down 0.46% to 38,713.72 while the NASDAQ fell 0.24% to 16,215.32. The S&P 500 also fell, dropping, 0.39% to 5,182.36. Check This Out: Robinhood To Rally Around 51%? Here Are 10 Top Analyst Forecasts For Tuesday   Leading and Lagging Sectors   Real estate shares jumped by 0.8% on Tuesday. In trading on Tuesday, financial shares fell by 0.7%.   Top Headline   The NFIB Small Business Optimism Index declined for a third straight month to a reading of 88.5 in March, compared to market estimates of 90.2.   Equities Trading UP   Laser Photonics Corporation (NASDAQ: LASE) shares shot up 98% to $2.8450 after the company announced it secured an order for its LaserTower COMPACT marking and engraving system from L3Harris Technologies. Shares of Acrivon Therapeutics, Inc. (NASDAQ: ACRV) got a boost, surging 95% to $11.54. The company announced a $130 million private placement financing. Syros Pharmaceuticals, Inc. (NASDAQ: SYRS) shares ...