It's Not All About Tariffs

It is true that tariffs are a tax. It is also true that tariff policies have been volatile…on and off again…different carve outs…different countries…phone calls that change things. All of this clearly has an impact on the market. So, we are not surprised to see stock market volatility.

However, it isn’t all about tariffs. Many major models of overall stock market valuation show that the market is expensive. The so-called Buffet Indicator, which measures the market cap of the S&P 500 as a percent of GDP, says the market is overvalued. The Shiller CAPE PE Ratio, which measures stock prices compared to trailing 10-year inflation-adjusted earnings, shows the market is overvalued. In other words, compared to history, stock prices are on the high side.

Some argue that it’s different this time. That AI, and technology in general are moving so fast, and so powerfully, that historical measures don’t work. One way to deal with this is to compare stock values and earnings to a discount rate…in other words compare the stock market to the bond market.

The Fed Model, which compares the earnings yield of the S&P 500 (the inverse of the PE ratio) to the 10-year Treasury yield or to a corporate bond yield, shows that stock returns relative to bond returns are the lowest since 2000 – the dot-com bubble.

Our Capitalized Profits Model, which discounts current profits by the 10-year Treasury yield, shows the same thing. We are overvalued relative to past relationships of earnings and interest rates. (To view all these charts, see our latest Three on Thursday by following this link.)

However, as the saying goes, it is a market of stocks and not a stock market. Just because these models say the market as a whole is over-valued does not mean all stocks are over-valued. But because the S&P 500 is so top heavy, with just 10 stocks making up over 1/3rd of its total capitalization, it is hard for the other 490 stocks to offset declines in these very large cap companies.