Factorial Energy debuted on Nasdaq under the ticker FAC on June 8 after completing its SPAC merger with Cartesian Growth Corporation III, with shares surging 16% on debut before pushing toward $25 in early trading before reversing sharply. The reversal reflects a pattern common to post-SPAC stocks where initial enthusiasm from the merger catalyst meets profit-taking from SPAC investors who entered at pre-merger prices. Solid-state battery technology, which Factorial is developing as a next-generation alternative to conventional lithium-ion cells, carries significant long-term potential in EV and energy storage markets but also faces a long commercialization runway. Investors considering FAC should distinguish between the technology's fundamental promise and the post-SPAC technical dynamics that are currently driving price action.