Stock Futures Wobble, Pointing to S&P 500 Treading Water

U.S. stock futures wobbled Wednesday on investors’ concerns that Covid-19 cases remain elevated and uncertainty about when central banks may dial back easy-money policies.

Futures tied to the S&P 500 slid less than 0.1%. The broad market index closed down 0.3% on Tuesday. Nasdaq-100 futures were also relatively flat, pointing to large technology stocks treading water at the opening bell.