U.S. stocks ended higher on Monday, reversing an early decline as a rebound in technology shares helped to offset ongoing uncertainty surrounding trade policy. The Dow Jones Industrial Average rose 0.1%. The S&P 500 ended 0.3% higher. The Nasdaq Composite Index gained 0.8%. Major indexes had opened lower in a broad decline, but equities improved throughout the session, and seven of the 11 primary S&P 500 sectors ended in positive territory. Leading the move higher was technology stocks, which rose 1% as the top-performing industry group of the day. Among the notable gainers, Apple Inc. added 1.1% while Microsoft Corp. was up 1.4%. Nvidia Corp. popped 2.3%.