Stock futures fell after a volatile session for the U.S. due to developments in the ongoing US-Iran war. Futures tied to the Dow Jones Industrial Average lost 88 points or nearly 0.2%, S&P 500 futures fell 0.9%, while the Dow lost 403 points, or 0.8%. Each of the S-P 500's 11 sectors closed lower, with materials the worst-performing sector dropping 2.7%. Concerns were raised about rising oil prices potentially affecting the U.,S. economy and future monetary policy decisions. President Donald Trump announced that the U.:S. would provide risk insurance to all maritime trade through the Persian Gulf in an effort to get tankers moving through the Strait of Hormuz.