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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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Are government bonds really safe?
Are government bonds safe? Three centuries of UK and US data show they protect in recessions but fail during wars and pandemics — precisely when investors need them most. Here's what the evidence says, and two things you can do about it.
Robin Powell
Mar 309 min read
How much of your portfolio should be in stocks?
How much of your portfolio should be in stocks? It's one of investing's most important questions — and the standard answer is costing the average investor the equivalent of 2% of their lifetime consumption. Yale economists have finally built something better, and it fits in a spreadsheet.
Robin Powell
Mar 138 min read
The case against concentrated funds: new evidence on the downsides of conviction
A major Morningstar study of more than 5,800 funds has delivered a clear verdict on concentrated funds: they charge higher fees, deliver lower returns, and suffer deeper losses than their more diversified peers. The evidence suggests most investors would be better off on the main road.
Robin Powell
Feb 238 min read
Why portfolio diversification matters more than ever
With the Magnificent Seven dominating the S&P 500, concentration risk is at historic highs. Here's why portfolio diversification remains your best defence.
Robin Powell
Dec 1, 20258 min read
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