Futures on Wall Street indexes are rising to start the month, pointing to modest opening gains for the S&P 500 ahead of another batch of earnings. Here’s what we’re watching before the bell.

• Novavax said it had completed its rolling submission to Canada’s health regulator to authorize its Covid-19 vaccine candidate. Shares jumped 6.8% in premarket trading.
• Over at Moderna , there was less good news. The Food and Drug Administration is delaying a decision on the firm’s application to authorize use of its Covid-19 vaccine in adolescents to assess whether the shot leads to a heightened risk of myocarditis. Shares slipped 2.9%.
• U.S.-listed shares of Nio fell 3.6% premarket. The China-based electric vehicle company said deliveries fell by more than a quarter from a year before in October.
• Also in electric-vehicle land, U.S.-listed shares of XPeng added 4.3% premarket. The Chinese carmaker reported strong sales for October.
• Tesla gained 1.8% premarket. Ganfeng Lithium said it has signed a contract to supply the electric-car maker with battery products from 2022 to 2024. Tesla options have changed hands at a frenetic pace of late.

• CrowdStrike shares lost 2.2% after BTIG downgraded the stock from “buy” to “neutral”.
• Plug Power , which develops hydrogen fuel systems and whose stock often experiences big price swings, rose 4.2%. Shares were among the most heavily traded premarket.
• Day-trader favorite AMC Entertainment gained 1.4%. AMC said ticket-admission revenues from its cinemas in the U.S. were the highest of any month since February 2020.
• Also trading at a brisk pace: Palantir Technologies . The software company ticked up 1.4%.
• Newell Brands shares gained 2.9% premarket after JPMorgan raised the stock to “overweight” from “neutral.”

Chart of the Day

High-speed trading firms are paying brokers billions of dollars a year to execute options orders, leading them to promote the risky trades whose popularity has boomed among small investors. Here’s how Robinhood Markets cashed in on the derivatives frenzy.