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How much passive investing is too much?
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

Robin Powell
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Why stock picking is even harder than you think
City of London skyscrapers including the Gherkin — the financial district reshaped by Big Bang in 1986, after which stock picking became a structurally losing game as research shows only 3.1 per cent of UK stocks generated all the market's real wealth over 50 years

Robin Powell
Apr 38 min read


100 years, 29,000 stocks, 46 winners: the case for indexing just got stronger
New research covering 100 years of US stock market data shows that just 46 firms out of nearly 30,000 drove half of all shareholder wealth creation — down from 89 in the original study. With wealth increasingly concentrated in fewer winners, the case for indexing has never been stronger. Here's what the numbers mean for your portfolio.

Robin Powell
Mar 208 min read
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