U.S. stock indexes drifted to a mixed finish after climbing in the morning but then running out of momentum. The S&P 500 finished the day an iota higher, less than 0.1%, but enough to break a four-day losing streak that had knocked it off its all-time high.

U.S. stocks drifted lower on Monday to compound their sharp losses from last week. The S&P 500 dipped 0.5% after flipping between small gains and losses several times through the day. The relatively modest moves followed its 1.