YahooSeptember 30, 2026 at 9:42 AM NY27 Days Ago
Moderna Sinks 6% on Citi Downgrade; Merck and Pfizer Stay Flat
Citigroup just slapped a Sell rating on one of 2026's most explosive biotech stocks, warning that soaring investor hopes around a cancer vaccine partnership with Merck have carried the valuation into dangerous territory.
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