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| Quarter | Letter Date | Fund Name | QTD | YTD | Tickers | Themes | Quick Take |
|---|---|---|---|---|---|---|---|
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"Bristlemoon delivered 10.4% in Q4 despite position sizing errors in top holdings. Pinterest remains largest detractor with revenue growth decelerating to 15-17% from 20%+."
Bristlemoon Global Fund delivered 10.4% net returns in Q4 2024, driven by strong performance from AppLovin (+148%) and PAR Technology (+42%). However, the quarter prompted critical reflection on position sizing methodology after three of five largest positions declined over 10%. The manager acknowledges Pinterest as the fund's largest performance detractor since inception, citing insufficient conviction and suboptimal risk/reward for such aggressive sizing. Pinterest's revenue growth decelerated from 20%+ to 15-17% guidance despite product improvements, leading to position reduction from 12% to 4.5%. The fund operates with 90.2% long exposure across 16 positions, maintaining concentrated approach while implementing revised position sizing framework. New criteria require exceptional risk/reward, business quality, understandability, and positive earnings inflection for large positions. AppLovin exemplifies successful uncertainty investing, with analyst earnings forecasts increasing 5.3x in two years. The manager emphasizes position sizing as crucial performance driver, capable of generating 16+ percentage points of additional returns through proper weighting decisions. Risk management remains paramount, particularly for short positions where conviction must be subordinated to tight controls.
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Algorithmic conviction, macroeconomic posture, and risk appetite signals extracted from this quarterly letter with qualitative explanations.
Market Conviction
High conviction evidenced by concentrated portfolio of 16 long positions with 90.2% exposure and detailed position sizing framework. Manager provides specific position sizes (Pinterest 12% to 4.5%, Match Group as top 5 holding) and clear investment criteria. The extensive discussion of position sizing methodology and specific stock analysis demonstrates strong conviction in their approach, despite acknowledging past errors.
Growth Outlook
The manager expresses mild optimism about specific opportunities like Pinterest's Amazon partnership and Performance Plus product, while acknowledging market dynamics that create uncertainty-driven opportunities. However, the tone is more analytical than bullish, focusing on lessons learned rather than broad market enthusiasm.
Risk Appetite
The fund maintains high exposure at 90.2% long with only 1.1% short, indicating continued risk appetite. However, the extensive discussion of position sizing errors and risk management suggests a more cautious approach to sizing individual positions going forward.
Capital Deployment
The fund reduced Pinterest position from 12% to 4.5% and exited 18 short positions in November due to risk management protocols. While maintaining high long exposure at 90.2%, the emphasis on position sizing discipline and risk management suggests modest de-risking rather than aggressive deployment.
Forward Guidance
The manager indicates they will continue applying their revised position sizing framework and maintain selective positioning. The tone suggests measured deployment rather than aggressive capital allocation, with emphasis on avoiding past mistakes.
Language Signal
Language includes positive terms around opportunities and specific holdings like AppLovin, but is balanced by extensive discussion of mistakes, risks, and the need for improved risk management. The overall tone is constructive but cautious.
Perceived Risk
Significant risk discussion throughout the letter, focusing on position sizing errors, portfolio concentration risks, and the potential for large positions to inflict outsized damage. Manager explicitly acknowledges that concentrated portfolios have higher volatility and discusses the risks of being wrong on large investments.
Opportunity Density
Manager sees selective opportunities, maintaining concentrated portfolio with specific holdings they believe offer attractive risk/reward. However, the emphasis on requiring exceptional criteria for large positions and the difficulty in finding investments that meet their revised framework suggests a more selective environment.
Time Horizon
The manager discusses multi-year investment horizons, with AppLovin held since July 2024 and showing 5x returns, and references to letting positions compound over many years. The focus on business quality and earnings compounding suggests a medium to long-term approach, though some catalyst dependency is evident.
