Pat Dorsey - Dorsey Asset Management Investment Strategy (Jun 30, 2025)


As of Jun 30, 2025, the Dorsey Asset Management portfolio managed by Pat Dorsey demonstrates a sophisticated investment approach with 19 positions and an average holding period of 671 quarters. The strategy focuses on Communication Services, Consumer Cyclical, Consumer Defensive, Financial Services, Healthcare, Industrials, Technology sectors with a typical position size of 9.8% of the portfolio.


The portfolio's risk management approach includes a maximum position size of 9.82% and sector diversification of 7%, exemplified by the case study of DANAHER CORPORATION (DHR). This strategic framework provides insights into Pat Dorsey's investment philosophy, risk management practices, and long-term value creation approach.

Investment Strategy Metrics

Key metrics revealing investment style, risk management, and performance characteristics

MetricValueCategoryDescription
Holding Period1.8 yearsStyleAverage duration positions are maintained
Position Count19StyleNumber of active positions in portfolio
Position Size9.8%RiskTypical allocation per position
Win Rate51.6%PerformancePercentage of profitable positions
Average Return6.7%PerformanceMean return across positions
Sharpe Ratio0.21PerformanceReturn per unit of risk taken

Investment Case Study: DANAHER CORPORATION (DHR)

12/31/2023 - 11/9/2025

Performance Metrics

Total Return: 108.50%

Holding Period: 679 days

Max Position Size: $183,118,000.00

Position Weight: 11.03%

Key Events

12/31/2023: ENTRY(314,516.00 shares) @ $231.34
3/31/2024: DECREASE(-4,152.00 shares) @ $249.72
6/30/2024: DECREASE(-3,944.00 shares) @ $249.85
9/30/2024: DECREASE(-8,928.00 shares) @ $278.02
12/31/2024: INCREASE(97,299.00 shares) @ $229.55
3/31/2025: INCREASE(296,513.00 shares) @ $205.00
6/30/2025: INCREASE(235,688.00 shares) @ $197.54

Investment Thesis

Entry Context: Initial position established based on fundamental analysis

Sector Conditions: Favorable market conditions in the sector

Risk Factors:
  • Market volatility
  • Sector-specific risks

Key Learnings

  • Position sizing is critical for portfolio management
  • Important to monitor sector exposure

Sector Allocations