[Note: This was an April Fool’s joke!]
Does the growing popularity of indexing and ETFs pose a real danger to the markets? As I discussed on a recent podcast, some market experts are concerned that the swelling ranks of index investors is creating a bubble. I used to brush off these concerns as the paranoid ramblings of money managers who are losing billions in assets as investors discover they add no value. But I’m starting to wonder if it might be true. After all, there are lots of articles on the Internet that say so.
A recent piece in the Globe and Mail, for example, featured billionaire hedge fund manager Seth Klarman, who worries that the growth of indexing is making markets less efficient: “The inherent irony of the efficient market theory is that the more people believe in it and correspondingly shun active management, the more inefficient the market is likely to become.”
I appreciate that index investors want to get broad diversification at the lowest possible cost, and that they’re attracted to a strategy that has the weight of academic evidence behind it.