Warnings that index funds have broken the stock market all imply a threshold: a share of the market at which price discovery fails. Nobody making the argument names it. Owen Lamont, writing in the Financial Analysts Journal, argues that no such number exists short of complete passive ownership, and that what actually determines whether prices stay informative is who is left doing the trading. His case, the strongest peer-reviewed research against it, and what the performance
The second edition of the award-winning How to Fund the Life You Want is published today. Most personal finance books are designed to be read. This one was designed to be used. Robin Powell explains why the best investing book for UK readers in 2026 doesn't just explain investing – it asks the reader to do something about it, with a free workbook, six rules and a foreword from the Financial Times' Consumer Editor Claer Barrett.
Robin Powell
May 147 min read
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