Shares of Archer Aviation Inc. (ACHR) are soaring 7.52% in Monday's trading session, building on the impressive 13.7% surge from Friday. The electric vertical takeoff and landing (eVTOL) aircraft maker's stock is gaining altitude following a series of positive developments and market speculation.

The primary catalyst for the stock's ascent appears to be Archer's recent demonstration of its Midnight aircraft at an airshow. This showcase of the company's flagship eVTOL vehicle, designed for short trips of up to 20 miles, has evidently caught the attention of investors. The Midnight aircraft, capable of carrying four passengers plus a pilot, is positioned as a key player in Archer's ambitious plans to operate an air taxi network in partnership with airlines, rideshare platforms, and governments.

Adding fuel to the stock's rally are swirling rumors about a potential collaboration between Archer Aviation and Elon Musk's Tesla. While unconfirmed, these speculations have intensified investor interest in the eVTOL manufacturer. The possibility of a partnership with a high-profile company like Tesla could significantly boost Archer's profile and potentially accelerate its path to commercialization. As the market continues to show enthusiasm for innovative transportation solutions, Archer's stock remains one to watch in the evolving urban air mobility sector.