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benzinga Market Technicals Impact 55/100 ● positive

12 Health Care Stocks Moving In Thursday's After-Market Session

Aug 20, 2026, 9:06 PM UTC · Primary ticker $HOWL

This filing reports significant after-market price movements for several healthcare stocks, with some experiencing substantial gains and others notable losses. These movements are primarily driven by various company-specific events, including earnings releases and other undisclosed catalysts, indicating active trading interest in the sector.

This 8-K filing highlights the volatility in the healthcare sector during after-market trading, with several companies experiencing notable price changes. The movements are attributed to various factors, including recent Q2 earnings reports for Profusa and EXoZymes, and Q1 earnings for Modular Medical. While some gains are substantial, like Werewolf Therapeutics' 77.1% jump, others, such as ZeroStack's 12.6% drop, indicate negative sentiment. This matters to traders as it signals potential short-term opportunities or risks based on these immediate reactions. The short-term implication is increased trading activity and potential for continued price swings, while long-term implications depend on the underlying reasons for these movements, which are not fully disclosed for all stocks. The key risk for traders is the lack of detailed catalysts for many of these movements, making them speculative.

$HOWL positive Significant after-market gain
$PFSA positive After-market gain following Q2 earnings
$ZSTK negative Significant after-market decline
$EXOZ negative After-market decline post Q2 earnings
$AVAH negative After-market decline
Source: benzinga
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Not financial advice. AI-generated analysis for informational purposes only.