Quantum BioPharma is trading at $2.75 (8% down) in after-hours trading, reversing a 5.6% rebound seen in the prior pre-market session.

  • The move appears to be a reversal of a brief technical bounce following several days of sustained selling pressure.
  • No new fundamental catalysts, such as earnings, FDA updates, M&A activity, or revised guidance, have emerged to explain the specific after-hours weakness.