📰 ET Markets 🔴 BEARISH 🕒 23 Oct 2026, 01:41 AM IST

Moderna stock crashes 25%, loses about $24 billion after cancer vaccine data leak

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Core Development: Moderna stock crashes 25%, loses about $24 billion after cancer vaccine data leak

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Market & Financial Impact: Moderna’s stock price dropped over 25% after trial results for its personalized melanoma vaccine with Merck were disclosed. The decline erased approximately $24 billion from Moderna’s market value, ending a significant rally this year. Analysts noted that this reaction was expected as investors often sell after news becomes public. Despite the drop, the trial results showed promising reductions in cancer recurrence when paired with Merck's Keytruda.

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Actionable Insight: 🔴 Bearish Risk: Regulatory scrutiny, profit decline, or sell-off risk may create near-term volatility.

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Official Publisher Attribution: This report is aggregated from Economic Times. ZeroLive provides live aggregation, automated sentiment synthesis, and exchange disclosure monitoring for retail market participants.

Read Original Full Coverage on Economic Times ↗

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Moderna stock crashes 25%, loses about $24 billion after cancer vaccine data leak

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