March 20 (Reuters) – U.S. stocks opened little changed onMonday as investors digested the G20’s decision to drop a pledgeto keep global trade free and as oil prices fell. The Dow Jones Industrial Average fell 9.48 points, or0.05 percent, to 20,905.14. The S&P 500 lost 2.34 points, or 0.09 percent, to2,375.91. The Nasdaq Composite dropped 1.45 points, or 0.02percent, to 5,899.55. (Reporting by Tanya Agrawal; Editing by Saumyadeb Chakrabarty)