Finance Blogger Wisdom: What’s a Reasonable Estimate for Portfolio Returns Going Forward?

Tadas Viskanta, editor of the excellent finanical blog Abnormal Returns, asked a group of financial bloggers the following question:

Assume you are advising a pension fund, endowment or foundation. What is a reasonable long-term expectation for real returns for a well-diversified portfolio?

The answered varied, but it seems like the consensus was somewhere in the ballpark of 2%-3%, though some had estimates of 5% or better.

This was my response:

We all know the standard answer: stocks “always” return 7% to 10% per year. But while that might be true over a 20-30-year time horizon, the reality can be very different over shorter time horizons.

At today’s valuations, the S&P 500 is priced to actually lose 2%-3% per year over the next eight years. That estimate is based on historical CAPE valuations, which have limitations (including the failure to take into account differences in interest rates over time). So, let’s assume the CAPE is being unduly bearish given today’s yields and that stock returns end up being 5% better than the CAPE suggests. We’re still looking at returns of 2%-3%.

That’s roughly in line with with the yields you can achieve on a high-quality bond portfolio. So, core assets should return something in the ballpark of 2%-3% per year over the next 8-10 years. Overseas (and particularly emerging market) stocks might do significantly better than that, and commodities might enjoy a good decade starting at today’s prices. So, a diversified portfolio that included emerging-market stocks and commodities might post respectable returns. But a standard 60/40 portfolio is unlikely to return better than about 3% over the next 8-10 years.

There were some very solid, very thoughtful responses from several financial bloggers I respect and follow.  To read the other answers, see Finance blogger wisdom: real returns.

 

 

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