Core Insights - Brown Advisory Mid-Cap Growth Strategy underperformed the Russell Midcap® Growth Index in Q4 2025 primarily due to stock selection, particularly missing out on Palantir Technologies Inc (PLTR) [1] - The Strategy aims for solid risk-adjusted returns by investing in high-quality companies with market capitalizations between $2 billion and $50 billion [1] Company Performance - Monolithic Power Systems, Inc. (NASDAQ:MPWR) is highlighted as a key stock, closing at $1,068.85 per share on March 20, 2026, with a one-month return of -10.19% and a 52-week gain of 70.22% [2] - The market capitalization of Monolithic Power Systems, Inc. is reported at $52.5 billion [2] Market Position and Strategy - Monolithic Power Systems, Inc. designs and markets advanced analog and mixed-signal semiconductors, with concerns about market share at NVIDIA easing due to strong performance on the Blackwell platform and next-generation Rubin platforms [3] - The company is expanding its exposure to various AI compute architectures, which is expected to reduce customer concentration over time [3] Hedge Fund Interest - Monolithic Power Systems, Inc. was held by 50 hedge fund portfolios at the end of Q4 2025, an increase from 42 in the previous quarter [4] - Despite acknowledging the potential of Monolithic Power Systems, the company believes that certain AI stocks may offer greater upside potential with less downside risk [4]