Pharma Stocks Week Ahead (Dec. 22–26, 2025): Drug-Pricing Deals, FDA Catalysts, and M&A to Watch
Christmas week is usually about thin liquidity and shorter trading hours, not blockbuster headlines. But pharma and biotech stocks head into the final full week of the year with a rare mix of policy shockwaves, deal-making, and FDA-driven volatility—all clustered around Dec. 19–21, 2025. From the White House’s sweeping “most-favored-nation” (MFN) push on U.S. drug prices to BioMarin’s largest-ever acquisition and fresh FDA approvals, the setup into year-end has become more headline-sensitive than the calendar would suggest. Here’s what investors and traders should be watching in pharma stocks in the week ahead. Christmas week trading: shorter sessions, fewer buyers, faster