Archer Aviation (NYSE:ACHR), which specializes in manufacturing electric vertical takeoff and landing (eVTOL) vehicles, is seeing choppy price action on Tuesday following an initial bump higher. Yesterday, automotive giant Stellantis (NYSE:STLA) announced that it had bought more ACHR stock, signaling confidence in the air mobility firm.According to its website, Stellantis completed a series of open-market purchases totaling approximately 8.3 million shares of ACHR stock. This acquisition signals confidence ...