The Outlier Trading Podcast Andrew Mack on Retail Options Trading | The Outlier Podcast
Nov 26, 2025
Andrew Mack, an options trader and author, dives into the intricacies of retail options trading, sharing his insights on market mechanics and trading psychology. He discusses the fading dynamics of market-on-close trading, and how to identify and test strategies for long and short volatility. Andrew emphasizes the importance of continuous observation and data analysis, while also warning against trading biases and the risk of social consensus. He even draws parallels between trading stress and high-intensity careers, providing advice on both mental and physical preparation for challenges.
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Brainstorm Then Stress-Test Ideas
- Andrew emphasizes starting with creative brainstorming about patterns, then applying critical stress tests.
- He alternates creative and analytical modes to form and then refute hypotheses.
Model To Harness An Effect, Not To Master Markets
- Build models to harness a specific market effect, not to create the perfect all-weather signal.
- Use models to parameterize risk, frequency, and sizing for that targeted effect.
Ridge Model Barely Beat 200-Day MA
- Andrew built a rolling Ridge regression risk-on/risk-off model and compared it to a 200-day moving average.
- The model beat the 200-day MA by only ~0.33%, showing complex models can offer marginal gains.
