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Overview of the theory
In previous articles I have introduced the concept of secular
market trends and relative
P/R, a valuation concept closely coupled with secular trends.
A thorough development of this theory is found in my book Stock
Cycles, but for the purposes of this article the summary
given in the two referenced articles should give the reader sufficient
background to follow the arguments presented here. The secular
trends concept holds that the long-term rise in stock prices displays
a "stair-step" pattern. During the secular bull markets
(corresponding to the riser) stocks move strongly upward, averaging
a 13-14% return in real terms. During the secular bear markets
(corresponding to the step) stocks move basically sideways, averaging
close to no return in real terms. The market spends roughly equal
amounts of time, in 10-20 year blocks, in each kind of secular
market trend. I propose that the 1982-2000 period constitutes a
secular bull market and that since last year we have entered a
secular bear market which could last as long as 20 years.
The P/R and relative P/R valuation concept starts with the idea
that business resources (R) constitute the true measure of the
intrinsic value of broad-based representative index of stocks such
as the S&P500. By definition, R has no meaning for an individual
stock. The value for R can be calculated for such an index using
earnings, dividends and a consumer price index as is described
in Stock
Cycles.
Application of the model during a secular bull market
The identification of secular bull and bear markets in real time
makes use of P/R, the ratio of the S&P500 index value to
R. For example, in fall 1995, when I first noted the secular
market trends, it was apparent we were in a secular bull market
that had begun in 1982 and P/R, at around 0.75, was still well
short of the >1.0 values it had typically shown at the end
of previous secular bull markets. Thus, it was clear that the
secular bull market had years left to run. During a secular bull
market, the trend is strongly upward and long-term asset allocation
should be 100% in stocks. For traders, methods should be backtested
using previous secular bull market periods. The only question
to be answered is when will the secular bull market end? Starting
in May
1997, I produced sporadic updates exploring this question
(see Dec
1999, Oct
1998) before calling an "end
to the secular bull market", and moving my 401K from
stocks to cash in summer 1999.
Application of the model during a secular bear market
I must stress again that secular trend theory is suitable only
as a guide for long-term asset allocation strategy. It
is not a trading tool, although a trader can use it to
help formulate a market view, the details of that view will necessarily
depend on a number of short-term technical analysis tools.
Once there is reason to believe that a secular bear market has
begun, asset allocation strategy changes from fully invested
in stocks to a mixture of stocks and non-stock investments. The
stock index can still outperform money markets if they are purchased
at "low enough" prices, or if purchased at short-term
low prices and sold after a relatively short period of time.
Thus, when stocks are expensive relative to their long-term future
performance one should over weighted in non-stock investments.
Conversely, when stocks are cheap relative to their long-term
future, one should be overweighted in stocks. Simplistically,
at the beginning of a secular bear market (e.g. last year) one
should have mostly cash and at the end of the secular bear market
(e.g. the early 1980's) one should be mostly invested in stocks.
How to change asset allocation as the secular bear market progresses
will depend on two things, market valuation (as
measured by relative P/R) and investor risk tolerance. For investors
with low risk tolerance and a 5+ year time horizon, the "safe" level
is given by the following expression:
1) safe level = 500 (1.02 + i / 100)N
Here i is the average inflation rate in the future and N is the
number of years after 2001. The safe level refers to the level
of the S&P500, below which long-term investments in this index
will almost certainly outperform money markets if held for 5 years
or more. The levels given by equation 1 are so low they are not
likely to be reached anytime in the next few years (although they
could be). The purpose of equation one is to keep risk-adverse
investors entirely out of the market during the secular bear market,
only reentering when it is nearing its end (or a stupendous buying
opportunity like summer 1932 emerges). More enterprising investors
will want to avail themselves of the potential gains to be had
during secular bear markets, keeping the risk in mind, of course.
The key parameter we will focus on is relative
P/R, a tool that allows one to estimate the value of the
S&P500 index relative to its long-term (30 years) future
performance. The lower relative P/R becomes, the higher the probability
that long-term future returns will be better than money markets,
meaning one should own the stock index rather than a money market.
Relative P/R reached an all-time high of 2.29 in July 1999, based
on the monthly average of the index. In March and August of the
next year, relative P/R reached the same peak level, before beginning
a dramatic drop to a low (so far) of 1.77 in March 2001. Figure
1 shows a graph of the behavior of relative P/R (rPR) around
the July 1999 peak. Also shown is the same behavior for four
previous peaks in rPR.
Figure 1. Profiles of relative P/R (rPR) shortly before and after
long-term peaks
Peaks in rPR tend to occur near the end of the secular bull markets,
sometimes right at the top such as in June 1881 and September 1929.
Other times they precede the top, sometimes by a considerable amount
of time. For example, rPR peaked in December 1961, four years before
the secular bull top in January 1966. The June 1901 rPR peak preceded
the September 1906 top by more than five years. Finally the first
rPR peak in July 1999 preceded the (so-far) August 2000 top of
the recent secular bull market by more than a year. We still cannot
rule out yet another bull market which will carry the index to
a marginal new constant-dollar high in the next few years, which
will make the official end of the secular bull market later than
August 2000.
To get an idea of the valuation territory we have entered since
the year 2000, we will look at capital gains returns in constant
dollars following the months with values of rPR greater than 1.65,
which corresponds to a present value of 1100 on the S&P500.
We will look at future capital gains over one, three, five and
ten year periods. For one-year returns we have 50 data points,
including 9 from the July 1999 to March 2000 period. For the longer
periods we have 41 data points, mostly from the 1960's. We focus
on capital gains since the level of dividends today are less than
the real return available from money market funds. Thus we can
interpret the real capital gains returns shown in Table 1 as roughly
equivalent to the expected total return from the stock index relative
to that from a money market fund. A negative value in Table 1 indicates
a situation in which the stock index investment would have failed
to outperform the safe money market given today's low dividend.
Table 1: Projected capital gains in real terms from historical
markets with rPR > 1.65 (S&P500 = 1100)
| X percent of returns better
than ® |
1-year |
3-year |
5-year |
10-year |
| X = 10% |
+8% |
+22% |
+22% |
+1% |
| X = 25% |
+5% |
+5% |
+4% |
-19% |
| X = 50% |
+0% |
-3% |
-5% |
-36% |
| X = 75% |
-11% |
-5% |
-18% |
-41% |
| X = 90% |
-18% |
-27% |
-20% |
-44% |
The interpretation of Table 1 is straightforward. Looking at the
one-year gains we see that 10% of historical returns from markets
showing rPR > 1.65 were 8% or greater. The median return was
0%. Ten percent of returns involved a loss of 18% or more. Over
a three year period, 10% of the time the S&P500 index advanced
22% or more. Another 10% of the time the market lost 27% or more.
The median return was a 3% loss over three years. Examination of
the median returns show that the longer one holds the index purchased
at these levels, the more likely one will lose money relative to
money markets. This is the reason for my book's title: Stock
Cycles: why stocks won't beat money markets over the
next twenty years.
We would also like to know how further declines in the market
will affect the probabilities shown in Table 1. To address this
question we can look at the next 50 highest rPR values, which fall
into the range 1.45 to 1.65, and correspond to a present S&P500
level of 970 to 1100. These values come from the 1960's too, but
also from 1930 and the 1880's. Should the S&P500 fall below
the April 4th low we will enter into this category.
Table 2: Historical real capital gains for rPR between 1.45 and
1.65 (S&P500 = 970-1100)
| X percent of returns better
than ® |
1-year |
3-year |
5-year |
10-year |
| X = 10% |
+16% |
+31% |
+16% |
+4% |
| X = 25% |
+14% |
+14% |
+9% |
-7% |
| X = 50% |
+6% |
-8% |
-8% |
-42% |
| X = 75% |
-14% |
-23% |
-18% |
-48% |
| X = 90% |
-20% |
-32% |
-22% |
-48% |
Table 2 shows that long-term positions taken even at these lower
levels are also unlikely to beat money market funds. In the shorter
term some gain is possible, as the median return is positive. Going
still lower in rPR, Table 3 shows the 200 months with rPR falling
between 1.17 and 1.45, corresponding to an S&P500 of 780 to
970 for today. These data come from all previous secular bear markets.
Note that returns over all time scales are quite poor.
Table 3: Historical real capital gains for rPR between 1.17 and
1.45 (S&P500 = 780-970)
| X percent of returns better
than ® |
1-year |
3-year |
5-year |
10-year |
| X = 10% |
+12% |
+23% |
+20% |
+17% |
| X = 25% |
+3% |
+4% |
+9% |
+9% |
| X = 50% |
-7% |
-12% |
-9% |
-8% |
| X = 75% |
-18% |
-31% |
-33% |
-21% |
| X = 90% |
-28% |
-48% |
-44% |
-47% |
Going still lower (Table 4) we finally reach a level at which
10-year investments in the index will match returns on a money
market fund. Shorter term investments are still quite poor. For
each table I have given the range of valuation in terms of both
rPR and today's S&P500. Unless the market crashes this year,
it is unlikely that rPR levels as low those in Tables 3 or 4 will
be seen this year. For future years the values for the S&P500
equivalent should be increased by about 2% plus the inflation rate
for each year after 2001. That is, Table 4 corresponds to an S&P500
of 650-780 for 2001, but for 2007 it would correspond to 870-1050
(assuming 3% inflation). Unless we get a repeat of the 1929-1932
debacle, the market may take years to work its way down to Tables
3 and 4. Relative P/R will fall as time goes on even if the index
does not because R increases with time. Hence, we may spend quite
a bit of time in Tables 1 and 2.
Table 4: Historical real capital gains for rPR between 0.98 and
1.17 (S&P500 = 650-780)
| X percent of returns better
than® |
1-year |
3-year |
5-year |
10-year |
| X = 10% |
+19% |
+25% |
+20% |
+57% |
| X = 25% |
+7% |
+1% |
+6% |
+41% |
| X = 50% |
-7% |
-8% |
-10% |
0% |
| X = 75% |
-19% |
-26% |
-21% |
-17% |
| X = 90% |
-30% |
-35% |
-39% |
-48% |
An important thing to note is during the early stages of the secular
bear market, described by Tables 1 and 2, short term returns can
be quite good despite the high level of rPR. Later, as we penetrate
deeper into the secular bear market and rPR moves lower, both short
term and long term investments become poor. Finally, as rPR falls
below 1.0, long-term stock returns start to become more promising
again. Short-term investments show promise during the early part
of the secular bear market precisely because of the uncertainly
that a secular bear market has in fact begun. Until a new bull
market fails to exceed the previous bull market peak, some investors
will believe that the secular bull market is still in progress.
Bullish models, such as Harry Dent's, also will provide support
for the bullish thesis. As a result, investors will be much more
aggressive with long positions today than they will be years from
now (despite rPR being higher today). Users of the secular trend
model can take advantage of this by selling into rallies in the
coming months. Enterprising traders can enter long-side trades
at potential technical bottoms and go short as the market approaches
previous tops. One must be careful to maintain a large reserve
of cash against a possible sharp drop. Secular bear markets can
unfold with blinding speed (e.g. 1929-1932), but this is rare (it
has only happened once). More likely is a prolonged period in which
the market retains a high rPR for a while, and operates in the
region covered by Tables 1 and 2.
As time goes on, P/R and rPR will drop, if only because R rises
without a commensurate rise in P. For example, the development
of high levels of inflation would cause R to climb rapidly, and
P/R to fall. As rPR falls, those who employ secular trend theory
will move to cash and wait for inflation to push the market right
through Tables 3 and 4 to very low levels of rPR. As Figure 1 shows,
rPR typically trends downward as the secular bear market rolls
on. When rPR levels fall below 0.6 stocks become hands-down superior
long-term investments (see Table 5). When one also considers that
at these low values of rPR stock dividend yields will likely be
larger than real interest rates, the already good situation displayed
by Table 5 become even better. But these low levels for rPR could
easily be 10-20 years away.
Table 5: Historical real capital gains for the lowest rPR values
between 0.35 and 0.57
| X percent of returns better
than ® |
1-year |
3-year |
5-year |
10-year |
| X = 10% |
+47% |
+39% |
+88% |
+277% |
| X = 25% |
+23% |
+33% |
+75% |
+137% |
| X = 50% |
+2% |
+6% |
+24% |
+122% |
| X = 75% |
-9% |
-17% |
+10% |
+71% |
| X = 90% |
-20% |
-28% |
-3% |
+24% |
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