Ronald Muhlenkamp - Muhlenkamp & Co Portfolio Performance Analysis (Q1 2026)

Investment performance metrics based on historical 13F filings data.

Data Coverage: June 2013 to March 2026 • Initial Portfolio Value: $0.00B

Performance calculated from first filing in our database. This may not represent the investor's entire career.

Portfolio Growth (Since First Filing)

+0.38B

+9,999%+

Winning Positions

+54.03%

67 wins / 124 positions

Average Gain (Winners)

$6.17M

+9,999%+ avg per position

Active Positions

29

40 losing positions

Portfolio Value Over Time

Current: $379.8M
Change: +$379.4M (101649.49%)
$379.8M $190.0M $176.3K
Jun 2013 Sep 2019 Mar 2026

Total Positions Tracked

124

All holdings over time

Win/Loss Ratio

1.68

67 gains / 40 losses

Active vs. Exited

29 / 95

Current positions / Exited

Position Performance

67 Gains / 40 Losses

Performance calculated from first appearance in 13F filings. Initial values represent position value when first tracked, not actual purchase prices.

Symbol Company Sector Entry Status Initial Value Current Value Gain/Loss Return %
EQT EQT Corporation Energy Dec 2021 ACTIVE $9.69K $25.54M $25.53M +9,999%+
MCK McKesson Corporation Healthcare Jun 2016 ACTIVE $8.62K $23.51M $23.50M +9,999%+
RGLD Royal Gold, Inc. Basic Materials Dec 2020 ACTIVE $2.12K $22.37M $22.37M +9,999%+
RUSHA Rush Enterprises, Inc. Consumer Cyclical Jun 2013 ACTIVE $9.53K $21.94M $21.93M +9,999%+
NEM Newmont Corporation Basic Materials Dec 2023 ACTIVE $5.94M $25.03M $19.08M +321.05%
BRK-B Berkshire Hathaway Inc. New Financial Services Jun 2013 ACTIVE $12.67K $18.38M $18.37M +9,999%+
SLB Schlumberger N.V. Energy Sep 2015 ACTIVE $4.11K $16.56M $16.55M +9,999%+
AEM Agnico Eagle Mines Limited Basic Materials Dec 2024 ACTIVE $11.77M $28.13M $16.36M +138.94%
AAPL Apple Inc. Technology Jun 2013 ACTIVE $7.29K $15.88M $15.87M +9,999%+
WAB Westinghouse Air Brake Technolo Industrials Mar 2019 ACTIVE $3.88K $15.78M $15.78M +9,999%+
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Important Note: Data Limitations

These metrics are based on 13F filing data which has significant limitations:

  • Quarterly Snapshots Only: 13F filings show positions at quarter-end, not actual transaction prices
  • No Transaction Prices: We cannot determine actual buy/sell prices, only end-of-quarter values
  • Performance Estimates: Gains/losses are calculated from first appearance to last update using quarterly values
  • Missing Data: Intra-quarter trades, dividends, corporate actions, and exact timing are not captured
  • Educational Only: These metrics are estimates for understanding general investment patterns, not actual realized returns

Use these metrics for informational and educational purposes only. They represent broad trends, not precise investment performance.