All three major U.S. equities benchmarks booked weekly gains. For the week, the Dow rose 2.5%, the S&P 500 advanced 4.6% and the technology-heavy Nasdaq jumped 6.7%, the preliminary data show.

The Dow Jones Industrial Average was wobbling as the U.S. stock market approached the closing bell, flipping between gains and losses. The Dow, a blue-chip stocks index, was down less than 0.1% in ...