What distinguishes Unperturbed by Volatility is its insistence on confronting where models break down, not just how they work when assumptions hold. The authors write from their experience, which is helpful in conveying some of the more challenging pitfalls investors can fall into when assessing risk.
"Unperturbed by Volatility: A Practitioner’s Guide to Risk" (2019) by Adel Osseiran and Florent Segonne gained prominence in 2021 for advocating that investors focus on market extremes rather than standard volatility metrics. The guide emphasizes using Mean Absolute Deviation (MAD) for robust risk estimation and argues that tail-hedging strategies are essential for navigating market instability. A summary of the book's core concepts is available at Notion robertreads.notion.site/Unperturbed-by-Volatility-573e3d2ea07e4b5687e1540083c2dfb7. unperturbed by volatility pdf 2021
Document your goals, time horizon, and risk tolerance. Refer to this document during market anomalies to anchor your decision-making. The guide emphasizes using Mean Absolute Deviation (MAD)
The authors highlight that market deviations are often larger than what normal distribution models predict. They suggest that Mean Absolute Deviation (MAD) can be a more robust estimator for volatility than standard deviation under fat-tailed conditions. Refer to this document during market anomalies to
When macroeconomic indicators become unpredictable, anchoring valuation metrics to real free cash flows and pricing power acts as an investor’s ultimate safety net.