A strategic endorsement from Nvidia lit a fire under this under-the-radar AI power play yesterday. Yesterday, Navitas Semiconductor (NASDAQ: NVTS) stock exploded by more than 160% following news that Nvidia (NASDAQ: NVDA) has selected the company to help develop 800-volt, high-voltage direct current (HVDC) power systems for its next-generation artificial intelligence (AI) data centers. With roughly 12.8% of Navitas shares sold short before the announcement and a market cap still hovering around $886 million as of this writing, this explosive move has triggered a mix of excitement and skepticism among investors.