Measuring Dividend Growth Is Complicated

 | Nov 22, 2015 11:48PM ET

You’d think this would be a pretty simple issue. It’s certainly an important one. Equity investors derive their returns from dividends, dividend growth and capital gains. A simple estimate of long term returns on an equity security is to add the current dividend yield to expected dividend growth to arrive at the expected annual return. If the dividend yield remains constant then the security’s price will rise at the dividend growth rate, hence adding them together makes sense. It’s a shorthand, necessarily imprecise estimate; the dividend yield can fluctuate and the growth estimate can be wrong. Currently, the S&P 500 yields around 2% and dividend growth has averaged 5% for the past 50 years, so a 7% long term return estimate for U.S. public equities is defensible on this basis. Different assumptions will produce a different result.

But the devil is in the details, as you will see. Since much of what we do is in energy infrastructure, we look pretty closely at the Alerian MLP as the benchmark for Master Limited Partnerships (MLPs). Growth in distributions (what MLPs call the dividends they pay) is a key component of total returns in this sector, so what have distributions done in 2015?

There’s more than one answer. You can derive a monthly dividend rate on the Alerian Index Alerian MLP by multiplying its month end yield by its price. Using this methodology, adding up the last 12 months’ dividends and comparing with the prior 12 months gives a drop of -4.0%. If you estimate the last two months’ of 2015 to be at the same rate as October, you arrive at a full year 2015 figure of -6.0% versus 2014. Another estimate uses just the October 2015 payout rate compared with the prior October, and on this basis they’re down -9.5%. None of these figures are wrong, they’re just different measurements.

The chart shows distribution growth using the one year change in the monthly rate going back to 2007. Prior to the collapse in oil, growth was running at around 5% so the 15% deterioration in the AMZ growth rate is similar to the drop that occurred in 2008. This roughly matches the performance of the index, which by September 2015 had fallen 40.1% from its August 2014 high, roughly the same as its 41.1% drop from June 2007 to December 2008.