Jeffrey Ubben - ValueAct Holdings Investment Strategy (Jun 30, 2025)


As of Jun 30, 2025, the ValueAct Holdings portfolio managed by Jeffrey Ubben demonstrates a sophisticated investment approach with 41 positions and an average holding period of 1147 quarters. The strategy focuses on Basic Materials, Communication Services, Consumer Cyclical, Energy, Financial Services, Healthcare, Real Estate, Technology, Utilities sectors with a typical position size of 11.3% of the portfolio.


The portfolio's risk management approach includes a maximum position size of 11.31% and sector diversification of 9%, exemplified by the case study of AMAZON COM INC (AMZN). This strategic framework provides insights into Jeffrey Ubben'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 Period3.1 yearsStyleAverage duration positions are maintained
Position Count41StyleNumber of active positions in portfolio
Position Size11.3%RiskTypical allocation per position
Win Rate50.7%PerformancePercentage of profitable positions
Average Return1789.4%PerformanceMean return across positions
Sharpe Ratio0.15PerformanceReturn per unit of risk taken

Investment Case Study: AMAZON COM INC (AMZN)

12/31/2024 - 11/7/2025

Performance Metrics

Total Return: 683.96%

Holding Period: 311 days

Max Position Size: $849,587,775.00

Position Weight: 6.73%

Key Events

12/31/2024: ENTRY(536,900.00 shares) @ $219.39
3/31/2025: INCREASE(26,200.00 shares) @ $190.26
6/30/2025: INCREASE(3,309,400.00 shares) @ $219.39

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