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Here’s Why Merck (MRK) Surged in Q4

Artisan Partners, an investment management company, released its fourth-quarter 2025 investor letter for “Artisan Value Fund”.  A copy of the letter can be downloaded here. The Fund seeks to invest in undervalued companies with strong financial condition and attractive business economics. US equities ended a record year with robust fourth-quarter gains. AI remains the main theme of the market, and large-cap stocks led the rally in the fourth quarter. Against this backdrop, the portfolio outperformed the Russell 1000® Value Index in Q4 and returned 4.60% compared to 3.81% for the...