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
New Morningstar research reveals the link between fund fees and performance has strengthened dramatically. A decade ago, some expensive funds generated enough alpha to partially justify their costs. Today, fees explain almost everything. The skill component has essentially vanished.
Robin Powell
Jan 229 min read
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