Muhlenkamp & Co

Ronald Muhlenkamp

Period

Q1 2026

Portfolio Date

Mar 31, 2026

Stocks Held

29

Market Value

$379.8M

Portfolio Analysis

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I. Institutional Overview

Ronald Muhlenkamp, the founder of Muhlenkamp & Co., has long been recognized in the investment community as a quintessential practitioner of "intelligent value" investing. His approach is not merely about buying cheap stocks but rather about identifying companies that exhibit high returns on equity (ROE) and strong free cash flow, particularly when those...

The current snapshot of the portfolio reveals a highly concentrated investment philosophy. With only 29 distinct holdings, Muhlenkamp & Co. clearly eschews the "closet indexing" that plagues many larger institutional managers. A portfolio of this size indicates that every position is meaningful and that the investment team possesses a high degree of...

Analyzing the scale and structure of the portfolio, we observe an institution that is comfortable operating in the mid-cap and large-cap space while maintaining a distinct "Old Economy" tilt. The total portfolio value of nearly $380 million allows for sufficient liquidity in most major equity names while remaining small enough to be nimble—a characteristic...

Based on the latest available 13F filing.

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Holdings Value Trend

Q2 2024

Q3 2024

Q4 2024

Q1 2025

Q2 2025

Q3 2025

Q4 2025

Q1 2026

Historical Positions

SymbolQ1 2026Q4 2025Q3 2025Q2 2025
AEM7.4%6.9%6.9%5.6%
EQT6.7%6.5%6.7%8.2%
NEM6.6%7.6%6.5%5.2%
MCK6.2%6.0%5.7%6.2%
RGLD5.9%5.3%4.8%-
RUSHA5.8%5.5%5.4%6.0%
BRK.B4.8%5.2%5.2%5.8%
SLB4.4%---
AAPL4.2%4.6%--
WAB4.2%---

Post-Filing Contributors

Price change since reported price, ranked by portfolio contribution

MCHP+43.85%
MTZ+11.43%
URI+46.66%
ETF-FRDM+30.27%
AAPL+16.49%

Post-Filing Detractors

Price change since reported price, ranked by portfolio contribution

MCK-9.03%
EQT-19.32%
LYB-21.21%
CE-21.40%
AEM-22.28%

Sector Analysis

Energy12.4%
Materials32.0%
Financials13.8%
Healthcare8.8%
Technology11.8%
Industrials12.1%
Consumer Discretionary9.1%

Trading Summary