The US markets opened lower on Monday before closing mixed as investors grew increasingly concerned about the potential consequences of Russia?s invasion of Ukraine. In tech news, Lordstown Motors tumbled 20% on Monday after releasing a fourth-quarter update including the EV pickup truck startup looking for additional capital to fund commercial launch of the Endurance and operating plan. A spotlight on Novavax as shares in the vaccine-maker fell more than 5% in after-hours trade following the release of the company?s fourth-quarter and full year results that fell short of estimates on both top and bottom lines. Airbnb has announced it will house up to 100,000 Ukrainian refugees for free to aid with housing as many people fleeing the Russian-invaded country as possible.