Sallie Mae is trading 14.96% down at $21.32 after an investor-law-firm investigation into potential corporate wrongdoing was announced on September 20, 2026.
- The investigation targets purchases made before July 25, 2025, and remains the clearest overnight company-specific catalyst identified.
- The broader market is mixed; no new earnings release or guidance update was found on September 22, 2026, making the legal-investigation headline the most likely driver.