US stocks closed mixed, with the Dow Jones Industrial Average rising 263.24 points, or 0.49%, to a new historical high of 54,349.12 points. However, the S&P 500 index fell 12.97 points, or 0.17%, to close at 7,723.55 points; and the technology-heavy Nasdaq Composite Index dropped 221.55 points, or 0.83%, to close at 26,363.44 points. Market optimism over the reopening of the Strait of Hormuz was offset by volatility in AI-related investment targets.