Here’s Why Diamond Hill Mid Cap Composite Purchased Revvity (RVTY) in Q3

Diamond Hill Capital, an investment management company, released its “Mid Cap Strategy” third-quarter 2025 investor letter. A copy of the letter can be downloaded here. Markets continued their rally in the third quarter, with US stocks gaining over 8% as measured by the Russell 3000 Index. Small-cap stocks experienced the strongest quarterly performance, rising by more than 12%, whereas large-cap stocks increased by about 8%, and mid-cap stocks saw a gain of 5%. The strategy underperformed the Russell Midcap Index in the third quarter, returning 4.49% net vs. 5.33% for the Index. For...