Core Insights - Madison Mid Cap Fund's Class I returned 1.9% in Q3 2025, underperforming the Russell Midcap Index which increased by 5.3% [1] - Information Technology sector led the performance in both the quarter and year-to-date [1] Company Performance - Amphenol Corporation (NYSE: APH) reported a one-month return of -2.59% but gained 75.47% over the last 52 weeks, closing at $130.36 per share with a market capitalization of $159.568 billion on November 20, 2025 [2] - Amphenol's Q3 sales increased by 53% in US dollars and 52% in local currencies, reaching $6.194 billion [4] Investment Insights - Madison Mid Cap Fund highlighted Amphenol as a strong performer due to its revenue growth driven by AI-related data center spending, alongside other companies like Arista Networks and MKS [3] - The number of hedge funds holding Amphenol increased from 69 to 81 in the second quarter, indicating growing interest [4]