Mark Massey - AltaRock Partners Investment Strategy & Portfolio Analysis
As of Mar 31, 2026, the AltaRock Partners portfolio managed by Mark Massey demonstrates a sophisticated investment approach with 10 positions and an average holding period of 1079 quarters. The strategy focuses on Communication Services, Consumer Cyclical, Financial Services, Industrials, Technology sectors with a typical position size of 11.9% of the portfolio.
The portfolio's risk management approach includes a maximum position size of 12% and sector diversification of 5%, exemplified by the case study of AMAZON (AMZN). This strategic framework provides insights into Mark Massey'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
| Metric | Value | Category | Description |
|---|---|---|---|
| Holding Period | 3.0 years | Style | Average duration positions are maintained |
| Position Count | 10 | Style | Number of active positions in portfolio |
| Position Size | 11.9% | Risk | Typical allocation per position |
| Win Rate | 56.5% | Performance | Percentage of profitable positions |
| Average Return | 4.0% | Performance | Mean return across positions |
| Sharpe Ratio | 0.10 | Performance | Return per unit of risk taken |
Investment Case Study: AMAZON (AMZN)
03/31/2022 - 05/26/2026
Performance Metrics
Total Return: -7.17%
Holding Period: 1517 days
Max Position Size: $414,816.00
Position Weight: 10.94%
Key Events
Investment Thesis
Entry Context: Initial position established based on fundamental analysis
Sector Conditions: Favorable market conditions in the sector
- Market volatility
- Sector-specific risks
Key Learnings
- Position sizing is critical for portfolio management
- Important to monitor sector exposure
Sector Focus
Typical allocation per position by sector focus.