This should be blindingly obvious, but amazing how often it is ignored. Great post from Josh Brown at Reformed Broker:
How do most investors (and many advisors) select funds or strategies to allocate to? They look at what’s been working, learn the story and get long…….
And then mean reversion shows up – outperforming managers subsequently underperform, hot themes become over-loved, winning strategies become too crowded to offer excess returns. “No problem,” says the advisor, I’ve got six new ideas to replace the six ideas that are no longer working!”It’s sad to say, but this is exactly how it works. I’ve been watching this for almost 20 years…….
Research Affiliates has an interesting pair of charts demonstrating this phenomenon in a new note from Rob Arnott, Jason Hsu and Co. They illustrate that increasing fund flows are a decent predictor of subsequent underperformance and that performance-chasing is destructive to returns across all types of investment products:
