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
Why do mutual funds underperform? New research from the University of Sydney reveals that at least 55% of fund performance is attributable to luck, not skill. Worse, luck actively predicts future underperformance: lucky funds attract inflows, grow too large, and lose their capacity to generate returns. Morningstar's five-star funds significantly underperform one-star funds in subsequent periods. Stop chasing yesterday's winners and own the market at low cost.
Robin Powell
Jan 56 min read
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