Advent Technologies Faces Nasdaq Delisting as Stock Plummets 55%

Advent Technologies Holdings Inc. (ADN) shares collapsed 55% in a single trading session after receiving a delisting notice from Nasdaq. The exchange cited non-compliance with Listing Rule 5550(b)(1), which mandates minimum stockholders' equity of $2.5 million. Trading suspension begins Thursday, with shares expected to migrate to the OTC markets under the same ticker.

The hydrogen fuel cell company's warrants—trading as ADNWW—will also be delisted. Pre-market trading showed a 57.9% plunge following yesterday's 3.6% decline. Year-to-date losses now exceed 45%, despite a 52% annual gain prior to the announcement.

Volume surged past 63 million shares as investors rushed to exit positions. The delisting underscores growing regulatory scrutiny of small-cap firms struggling to maintain exchange requirements. Advent joins a growing list of clean energy companies facing capital market challenges amid shifting investor priorities.