ON Semiconductor: Mispriced 800V-1200V AI Power And Physical AI Shift

ON Semiconductor is rated Buy, with a systematic accumulation strategy targeting a large upside breakout by 2027–2028. ON’s transformation via the $7B Synaptics acquisition and proprietary Treo platform expands its TAM to $243B by 2030, leveraging leadership in 1200V vertical GaN and SiC technologies. Key catalysts include 10x content growth in 800V AI data center racks, robust margin expansion toward a 53% target, and decoupling from flat global auto SAAR via Chinese EV exports. Major risks center on Synaptics integration, delayed 800V data center retrofits, Chinese SiC ASP deflation, and balance sheet leverage. FTXL ETF offers a diversified proxy for ON exposure.

For ON Semiconductor (ON) stock, I'm marking a Buy rating (accumulate a long position systematically and expand the position on M&A-led weakness to optimize average positional price) as a large upside breakout is highly probable by 2027–2028, as per my thesis.