Marvell Technology, Voyager Therapeutics, Roku, Acuity Brands and Riot Blockchain are five top stock gainers for Wednesday.

Stock futures waver as Wall Street kicks off the third quarter; Walgreens reports earnings; Ford will idle plants; Micron sees continued strong demand for memory chips.

Stock futures rise Thursday after Democrats win control of the Senate and Joe Biden is recognized by Congress as the next U.S. president; Twitter and Facebook lock the accounts of President Trump; Plug Power gets $1.5 billion investment.

Stock futures slip as Federal Reserve Chairman Jerome Powell warns an economic recovery could stall if the coronavirus isn't contained; Uber is in talks to buy Postmates.

Stock futures point to a modest rebound from the previous session's drubbing; oil prices surge after President Trump says he expects Saudi Arabia and Russia to end their damaging price battle; jobless claims could set a record for a second straight week.

Revenue at Acuity, the provider of lighting and management products for buildings, dropped 11%, and adjusted earnings fell 8.2% -- both more than analysts expected.

Stock futures rise as tensions ease between the U.S. and Iran; Bed Bath & Beyond sinks after posting a surprise quarterly loss and withdrawing guidance; HP Inc.'s board again rejects Xerox's takeover bid.

Acuity reports fiscal fourth-quarter earnings below analysts' estimates.

U.S. stock futures point lower following the biggest single-day decline on Wall Street in more than a month after a grim reading of U.S. factory activity; Johnson & Johnson settles opioid lawsuits with two Northeast Ohio counties for $20.4 million; Visa, Mastercard and other financial partners that agreed to help build and maintain Facebook's Libra cryptocurrency-based payments network are reconsidering their involvement, a report says.

"For 2023, we again expect solid growth in our two most important measures of success: revenue and free cash flow," said CFO Jim Kavanaugh.

"I am deeply sorry for the impact to our employees and customers," said Southwest CEO Bob Jordan.

"We achieved these results while continuing to invest in broadband, our 10G network evolution, Xfinity Mobile, Peacock, and theme parks, and we also took cost actions to further our growth in the future," said CEO Brian Roberts.