The US markets closed lower on Friday as investors assessed how policy shifts from the world?s big central banks could impact economic recovery and growth, as well as a spike in COVID-19 cases across Europe plunging more countries like the Netherlands into lockdown over Christmas. Health information tech services, devices and hardware company Cerner soared 13% on Friday after the Wall St Journal reported computer tech giant Oracle could soon acquire Cerner for around 30 billion US dollars. A spotlight on FedEx as the US-based shipping giant jumped almost 5% on Friday after releasing better than expected second-quarter results for revenue and earnings per share. General Motors has started delivering its Hummer EV Edition 1 pickup trucks to customers ahead of Christmas. The Hummer EV costs US$110,295 and has a range of around 329 miles on one charge of the battery.