Don’t Invest Like Stalin

I always try to read everything that Jeremy Grantham’s GMO publishes, but I somehow missed this one until it was republished on Meb Faber’s Idea Farm. Good stuff: Don’t Act Like Stalin.

Lot’s of good takeaways (as always). GMO’s main point was that chasing recent performance is a game you can’t win. All good strategies (and good managers) have periods of outperformance and underperformance.

But while chasing performance is a terrible move, so is sticking with a bad strategy or a strategy that is likely to be a lousy fit in a given macro environment (i.e. owning bonds in an inflationary environment or owning gold and commodities in a severe disinflationary environment).

This is where communication is important. Talk to your manager and ask them to explain their strategy. If it’s outperforming, ask them why. If they can’t explain it (or if they get excessively cocky about it), I’d question how sustainable the performance is. You might want to bank your profits and move on.

Likewise, if they’re having a bad year, ask them why. If they can’t explain it, they get overly defensive or their answer just doesn’t make sense, don’t hesitate to cut them loose. But if their strategy makes intuitive sense to you and it offers diversification alongside other strategies you’re running (that great alchemy of uncorrelated returns!), then give the manager a little leeway.

Not for the manager’s benefit, of course. His or her wellbeing is not your concern. But if you employed them for a reason (i.e. their strategy tends to zig while the rest of your portfolio zags) then you should hang on long enough to get the expected benefit.

As a case in point, Grantham and his team lost half their assets under management in the late 1990s when value lagged growth. But Gratham absolutely killed it in the years following the tech crash… and his former clients that bailed on him missed out.

 

 

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