This article originally appeared on the Independent Observer Blog.
I recently took a look at housing for the first time in six months or so, and I thought it was time to examine the stock market in similar fashion to see where we are.
In my market commentaries and videos, I have continued to discuss the positive trends and healthy fundamentals-which are very real-but we also need to consider the broader context. The following three indicators paint a somewhat cautionary picture.
Valuations are not at all-time highs-yet
First, let's consider valuations as measured by the Shiller cyclically adjusted price-to-earnings ratio, which uses the current price divided by the average earnings over the previous 10 years.
You can see from the following chart that we've exceeded the current level in only three prior periods-the 1920s, the late 1990s, and the mid-2000s. I don't think I have to tell you about what happened in the periods that followed.
Margin debt continues to climb
Next, let's look at the amount of money borrowed to buy stocks and bonds. The best way to measure this is to take the total amount of debt and divide it by the dollar worth of the market (i.e., its capitalization).
Our data set isn't as long here, but the chart shows that current debt is clearly higher than it has been at any point since 1999-and, more recently, 2007-despite the recent decline. The problem with debt is that it still has to be repaid even if prices go down, and selling to pay that debt can drive further declines. The recent pullback in the debt level may, in fact, be partially due to investors trimming their borrowing as a consequence of the October pullback.
The Warren Buffet indicator remains elevated
Finally, there is the Warren Buffet indicator-so called because it is a stat he is reportedly fond of-which looks at the ratio of stock market capitalization to GDP. This gives us the value of the stock market as a percentage of the economy as a whole.
Once again, we see that we are at the highest levels since 1955, with the exception of 2000 and 2007.
Navigating uncharted territory
We are now three-for-three on very high valuation and risk metrics for the stock market. None of this is to say that the market will turn down any time soon; as we saw in the late 1990s and 2000s, the market can keep rising even when valuations are high. But it does mean that the level of risk is increasing.
And with these three indicators at levels above almost everything we've seen before the last 15 years, we'll have to move even higher above historical levels and into uncharted territory for the trend to continue.
Unlike housing, which thoroughly repriced and is now growing at sustainable rates, the stock market arguably never really bottomed. Instead, it bounced back to grow at unsustainable rates and is now either at or approaching its previous peaks. I suspect that the positive trend will continue through the end of the year-and quite possibly for some time thereafter. But per the quote from Herb Stein that I shared the other day, "If something can't go on forever, it will stop." The question is when and how it will happen.