The US markets reversed some of Friday?s losses to start the week in positive territory as investors shrugged off initial fears of the possible impact the Omicron COVID-19 variant may have on global economic recovery. Twitter shares fell 2% at the closing bell on Monday after founder and CEO Jack Dorsey announced he is standing down as CEO, and exiting the company after founding the company back in 2006. A spotlight on Tesla as shares in the EV giant popped 5% yesterday after CEO Elon Musk urged employees to focus on minimising the cost of deliveries. Nissan has debuted concepts for its planned 17.6 billion US dollar electrified future, unveiling designs for the Max-Out, Hang-Out, Surf-Out and Chill-Out electric vehicles aimed for launch in 2030.