
Thematic Edge Podcast Episode 010: Forest fire insurance
Feb 18, 2026
David Dredge, CIO of Convex Strategies and tail-risk specialist, outlines how systemic fragility accumulates like forest undergrowth. He uses the forest fire analogy to explain leverage, contagion and self-organized criticality. The conversation covers failures of Sharpe-centric thinking, the value of convexity and hedging, and how demographics, central-bank policy and bond stress feed growing financial vulnerability.
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Episode notes
Tax Rules Distort Manager Behavior
- Marvin recounts hedge-fund incentives and tax timings that push managers toward short-term, risky behavior.
- He notes year-end bonuses and taxation encourage capturing gains now, not managing long-term compounding.
Convexity Beats Sharpe Optimization
- Optimizing for Sharpe ratio often sacrifices upside and creates negative skew.
- Convexity prefers trading less downside for more upside volatility to improve geometric compounding.
Cheap Convexity Signals Hidden Leverage
- Cheap convexity indicates persistent hidden leverage and vol-selling across markets, making tail protection valuable.
- Dredge reports attractive convexity opportunities across asset classes after recent years of volatility.

