U.S. stock futures rose and Treasury yields slipped as investors assessed the uncertain effects of the Omicron variant on the economy.

Futures the S&P 500 gained 0.5% Wednesday, a day after the benchmark index posted its biggest one-day jump since March and closed just shy of an all-time high. Contracts for the Dow Jones Industrial Average also rose 0.5% and futures for the Nasdaq-100 added 0.6%, pointing to a strong start to the session for technology stocks.