Moderna shares double to $140.19 as cancer vaccine data revives investor optimism
Positive late-stage data for Moderna's mRNA cancer vaccine (with Merck's Keytruda) drove a sharp repricing in growth expectations, lifting shares on heavy volume and pushing Merck to a record high. Upward revisions to 2032 sales potential reinforce the longer-term revenue diversification narrative beyond COVID-19. Elevated short interest (13.5% of free float) adds squeeze dynamics, amplifying near-term volatility and momentum.
AI Insight · NCSKMRNA2USD/USDTAI Insight
▲ Bullish
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Moderna shares doubled to a two-year high of $140.19, adding about $30 billion in market value in a single session as trading volume surged to more than 15 times the 50-day average. Merck rose 10% to a record high. Leerink Partners lifted its 2032 sales outlook for the cancer vaccine therapy to $1.4 billion from up to $1.2 billion. ORTEX data show short interest in Moderna at 13.5% of the free float, and analysts said growing pressure on short sellers is increasing the risk of a squeeze.