Vanguard Is Growing Faster Than Everybody Else Combined
As a Vanguard customer, I can understand why people are so enthusiastic about their products, and have known for a while that passive investment, and Vanguard in particular, was growing while active management was on the decline.At no point did I think the difference in inflows was anywhere close to 8.5x. And it does worry me.I'm familiar with the contention that even having some active players in the market will arbitrage the prices back to fair value, but when they compose such a small share of such a large market that's no longer a trustworthy assumption to make.There's no law that I know of that prevents active players from exploiting the knowledge that passive money will go wherever the market tells it to. There have got to be a lot of opportunities here for profiting, legally, at the expense of those passive investors, that goes beyond simple margin arbitrage.My point is, the less active money there is around, the less accurate our concept of a correct value can be.  This situation has the potential to de-stabilise the economy sooner rather than later.