Quartzsea Acquisition (QSEAU) stock chart: the past year in 2 moments

Dec 9, 2025 – Oct 27, 2026 · picked from earnings, analyst actions, headlines and the biggest daily moves

1. 1Feb 18, 2026High point

   The year's high: $12.30

   Quartzsea Acquisition closed at its highest level of the year, 19.1% above where the year started.

   +2.7% · S&P 500 +0.5%

   QSEAU news
2. 2Mar 4, 2026Big move

   Shares fall 14.6%

   Quartzsea Acquisition shares fell 14.6%, while the S&P 500 rose 0.7%.

   −14.6%, the year's worst day · S&P 500 +0.7%