🟢 Birkenstock Holding is trading 56.89% up in after-hours trading — no verified catalyst found

Birkenstock Holding is trading 56.89% up at $47.93 after-hours, versus the September 18 regular-session close of $30.55, with no verified company-specific catalyst found in available coverage.

• Recent items include a September 11 UBS Buy reiteration and a September 8 report about Michael Burry’s stake.
• Neither item clearly explains the exceptional move, which also exceeds the broader market’s gains.