The Madness of Markets

Why Smart Investors Make Crazy Decisions – And How to Exploit Them

Alex Edmans author

Format:Hardback

Publisher:Penguin Books Ltd

Publishing:17th Sep '26

£22.00

This title is due to be published on 17th September, and will be despatched as soon as possible.

The Madness of Markets cover

"INCREDIBLY USEFUL AND ENTERTAINING" - Rory Sutherland, Vice Chairman of Ogilvy and author of Alchemy

"PUNCHY, WITTY, AND PROVOCATIVE" - Gillian Tett, Financial Times columnist and author of Anthro-Vision

"FASCINATING AND INDISPENSIBLE" - Annie Duke, Decision strategist and author of Thinking in Bets and Quit

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Even the smartest investors lose their minds – and their money.

Why do investors chase AI stocks that bleed losses? Why do they ignore glaring opportunities hiding in plain sight? Why does the stock market fall after a football defeat, or rise on a sunny day?

In The Madness of Markets, Professor Alex Edmans reveals how mood, emotion and social contagion lead even seasoned professionals to make irrational decisions.

But their mistakes can become your advantage. Edmans uncovers how you can protect yourself from costly mishaps and capitalise when others misstep. You’ll learn how to think sharper, invest smarter and recognise when the crowd has lost the plot.

From one of the world’s leading finance professors, this is a compelling guide to beating the market in a world that thinks fast, loud and wrong.

An entertaining writer … Edmans summarizes the field of behavioral finance with a refreshingly light touch. -- Jason Zweig, financial journalist and columnist for The Wall Street Journal
A maddeningly good read. Both a handy guide to common investment pitfalls and a delightful romp through the weird behaviour and phenomena that dog the supposedly efficient stock market. -- Robin Wigglesworth, financial journalist and author of A FABULOUS DEBT
In this smart, engaging book, Edmans offers a masterclass on the psychological forces that shape financial markets and investment decisions. The Madness of Markets is a must-read for anyone interested in behavioural finance. -- Katy Milkman, Professor, The Wharton School and author of HOW TO CHANGE
Alex Edmans has an extraordinary knack for turning your preconceptions about business and the economy on their head. The Madness of Markets is no exception. A clear, penetrating look at how even the most rational brains can be swayed by mood and momentum. The ideal user's guide to the next financial bubble. -- Ed Conway, financial journalist and author of MATERIAL WORLD
The Madness of Markets is essential reading for anyone who wants to understand how markets work. Grounded in sound research, Alex Edmans entertainingly reveals what drives the market’s mood swings and how to capitalize on the opportunities they create. -- Michael Mauboussin, Managing Director, Morgan Stanley and author of MORE THAN YOU KNOW
We sometimes forget that… the line between crowd wisdom and crowd madness is a fine one. This book by Professor Edmans reminds us of that truth, and it is filled with useful insights for investors, while being fun to read. While many behavioural finance books are centered on how investor psychology can skew pricing, this book follows through by offering actionable advice on how investors can take advantage of these mistakes. -- Aswath Damodaran, Professor, NYU Stern School of Business and author of THE LITTLE BOOK OF VALUATION
A fascinating and indispensable guide to the hidden psychology that drives markets. Alex Edmans brilliantly reveals how emotion, bias, and inertia lead even the smartest investors astray – and provides practical lessons for investing more wisely. -- Annie Duke, decision strategist and author of THINKING IN BETS AND QUITS
At a time when markets often seem to be going mad, amid wild AI hype, Edmans’ book offers a cool-headed compass that enables you to navigate the world of finance and - most importantly - your own emotions. Punchy, witty and provocative, this enables anyone to work out whether they are over or under-reacting to events, and chart a more level-headed approach to reading market signals. -- Gillian Tett, Financial Times columnist and author of ANTHRO-VISION
This book serves two purposes: it is an incredibly useful and entertaining handbook - but it is also a warning. Numbers often lie - in large part perhaps we prefer it that way. -- Rory Sutherland, Vice Chairman of Ogilvy UK, and author of ALCHEMY

ISBN: 9780241808054

Dimensions: 222mm x 138mm x 25mm

Weight: 400g

384 pages