Is the stock market just vibes?
Oct 19, 2026 · 25m
Summary
Host Phil Agnew interviews finance professor Alex Edmonds about his book *The Madness of Markets*, which explores how human emotion drives irrational stock decisions. They discuss how investors overreact to superficial trends like AI rebranding and football results, while underreacting to fundamental value drivers like employee satisfaction. Edmonds explains how these behavioral biases create predictable market inefficiencies that savvy investors can exploit through contrarian strategies.
Topics discussed
Intro: Market vibes and HubSpot sponsor
Guest introduction: Alex Edmonds
The concept of market overreaction
Kahneman and Tversky anchoring study
Allbirds rebrand and AI hype
Historical rebranding bubbles: Blockchain and Dot-com
Football results and stock market performance
Why professionals cannot shake off emotions
Recent examples: England defeat and market drop
Methodology: Measuring national mood
Music sentiment as a mood barometer
Findings: Music mood and investment risk
Takeaways: Awareness and contrarian investing
Contrarian strategy: Buying losers, selling winners
Global evidence and episode summary
Sponsor break: The Ross Simmons Show
Exploiting underreaction: Employee satisfaction
Research: Happy employees and stock returns
Why the market underreacts to culture
Customer satisfaction and brand value metrics
Conclusion and newsletter recommendations
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