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Biggest News-Driven Stock Movers — Aug 26, 2026

Finvera Editorial Team··roundup

Here were the biggest news-driven, market-adjusted stock moves on Aug 26, 2026:

  • VMAR (+23.0%; +22.7% vs. SPY): Vision Marine Technologies signed a letter of intent for a proposed business combination with an undisclosed counterparty.
  • PLAB (-18.8%; -19.1% vs. SPY): Photronics fell after a “deadline alert” noting investors have until Sept. 4 to seek lead-plaintiff status in a securities class action.
  • AARD (-6.6%; -6.9% vs. SPY): Aardvark Therapeutics slipped after a notice that investors with substantial losses have an opportunity to lead a class-action lawsuit.
  • XENE (+5.6%; +5.3% vs. SPY): Xenon rose after saying it will highlight Phase 3 X-TOLE2 clinical data and rational polytherapy potential for azetukalner at EEC 2026.
  • DY (-4.9%; -5.2% vs. SPY): Dycom Industries declined as investors digested its Q2 2027 earnings call transcript.
  • P (+5.5%; +5.2% vs. SPY): Everpure gained after releasing its second-quarter 2027 earnings release and prepared remarks for its Q2 FY27 earnings call.
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