Long-Term Returns To Expect From Dow Jones Industrial Average Stocks -
March 15, 2009
United States Stock Markets as measured by the Dow Jones Industrial Average (DJIA)
have recently suffered a major crash. The Dow at 7,224 as of March 15, 2009 has
crashed down 49% from
its high of 14,165 of October 9, 2007.
The earnings on the DJIA have fallen by 26% from $831 in 2007 to about $612
in 2008 (and appear to be still falling). Additionally the P/E ratio has fallen 26% from 16.0 at the end of
2007 to 11.8 as of March 15, 2009. (A 26% drop in earnings combined with
a 26% drop in the P/E jointly explain the 49% drop in the Index).
The reason that the P/E has dropped is due to concern that earnings will
decline further due to the financial crisis or at least will fail to show much
growth.
The average P/E of the Dow Jones Industrial Average, using year-end data,
since 1926 has been 17.8. However, this is distorted upwards by a few years like
1982 when the P/E was 114 due to earnings that were near-zero due to some unusual
losses by some major companies. If we eliminate several similar "outliers" a
more representative average P/E is 15.5. Therefore the current P/E ratio
of 11.8 is lower than normal.
This Article uses past trends to explore whether the Dow Jones Industrial
Average is now under-valued or not and what return we might now expect over the
long-term. (The short-term is basically unpredictable).
Demonstration of how a stock index rises with earnings:

Note that the graphs on this page all use logarithmic scales. Log scales are
the ONLY way to properly show a trend in long-term data. On a log scale a
constant percentage gain each year becomes a straight trend line. Analysis that
uses a "normal" linear scale for long-term data will display an
exponential curve with the data appearing to shoot to the moon.
As we would expect, a very strong relationship is seen above between the
(blue) Dow index driven by the (red) Dow earnings. The width between the lines
increases when the P/E ratio is high and narrows when the P/E ratio is lower. In general the slope of the two lines (which represents the growth)
is roughly equal over the long-run.
As we are well aware, the Dow index line (blue) declined in 2000 and then
reached reached a new peak in 2007 but as of March 15, 2009 has crashed by
almost 50%. The decline around 2000 is not that dramatic when annual year-end data
is used. We can see here that the crash around 1973 1974 was just as bad as the
crash of 2000/2001. The 2008 crash has been just as bad as the crash of
2000/2001. none of these crashes is all that unusually in the context of the
long-term. The 1929-1932 crash was much more severe than anything that has (so
far) happened since.
Although the short-term is unpredictable we might expect the DOW line to advance in line with earnings
growth in the long-term. Below, we will see that earnings growth is in turn tied to
growth in Gross Domestic Product or GDP.
Demonstration of how stock index earnings relate to GDP:

This chart shows that earnings on the Dow stock index (red line) tend to grow at
a rate similar to but slightly below the growth rate in GDP (blue line) in
the long-term. (This is to be
expected; earnings growth should track GDP per capita growth which lags GDP).
GDP growth is much more stable than earnings growth. Normally, U.S. GDP growth estimates
by economists are in the range of 3% "real"
with another 2% or so for inflation, for a total around 5%. We therefore should expect large cap stock indexes to
normally rise
roughly 5% per year (although with volatility). However in the next year the
U.S. is expected to be in recession and so we might get no GDP growth or
negative growth for the
next year (possibly to then be recovered after the recession).
Note that estimates of earnings growth are usually made by stock analysts and often
tend to be optimistic. While economists often project GDP growth at around 5%,
stock analysts are more likely to suggest that earnings growth will be closer to
10%. Except when earnings have lagged GDP growth for a period, it is unrealistic
to forecast earnings growth on a broad stock market index to exceed GDP growth.
Demonstration that GDP growth drove the stock index return:

This last graph is quite amazing. It was to be expected that
the two lines would have similar slopes. The growth in the red DOW index
line has
been driven by the growth in the blue GDP line. It was a lucky coincidence that
GDP in billions happened to equal the DOW index value around 1933. As might be expected the two
lines then grew at similar rates (at least in the very long term) and therefore ever after remained at least somewhat close together.
In the 1960's the DOW index got above the GDP line. But this was followed by a
long period where the DOW index went fairly flat as the DOW failed to keep up
with GDP growth in the high-inflation years. The DOW then made up ground by
racing up to "catch" and ultimately surpass the GDP line by the late 90's. Around 2000 the Dow index fell while GDP continued to grow. With the Dow
line now below the GDP line we might forecast the Dow index to again track
upwards with GDP growth. However, the graph shows that it is possible for the
DOW to stay below the GDP line for an extended period.
On this graph we can also see that U.S. nominal (including inflation) GDP
grew at a higher rate during the high inflation years starting in the 70's. But
since then GDP growth has slowed in the recent lower inflation years. GDP in
nominal dollars is likely to be flat to negative in 2009.
Given a 5% average growth in nominal (after inflation) GDP, we can forecast that the
Dow index (currently 7,224) should be around 11,767 in ten years (March
2019). However if the P/E at that time is 15 instead of the current 11.8, then
the Dow would be about 14,958, which is a more realistic forecast sine the P/E
is unlikely to stay at 11.8.
Conclusion
The level of the Dow Jones Industrial Average can be broken down to two
factors. Earnings and the P/E ratio. Earnings can deviate widely from GDP growth
in the short-term but over longer periods earnings tend to track GDP growth
reasonably
closely, although it probably lags slightly in the long run. GDP growth has tended
to be reasonably steady at around 5% per year (in nominal dollars, including
inflation). Periodic recessions reduce GDP growth but it tends to recover.
If GDP will grow at about 5% then we can expect an underlying growth in the
DOW index of about 5% annually, although with significant volatility around
that. Adding in 3% for dicvidends would provide a total average annual return of
about
8% (again with very significant volatility around that).
With the Dow P/E ratio now down at 11.8 we can can expect to get a one-time
recovery in the DOW in the order of about 27% as the P/E ratio recovers to a
more normal level of about 15. This should occur when confidence returns to the
economy. (But meanwhile despair and the financial crisis could push the Dow
lower).
A period such as now feels very pessimistic because markets have declined.
However when the P/E ratio declines we are actually (from a long-term
perspective) in a safer period since it
will at some point recover to its long-term average of about 15.
Shawn Allen, CFA, CMA, MBA, P.Eng.
President, InvestorsFriend Inc.
Updated March 15. 2009
www.investorsfriend.com