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DEEP DIVE: Stock Market Discounting Fed Put, Which The Economy Does Not Need

DEEP DIVE: Stock Market Discounting Fed Put, Which The Economy Does Not Need
The following is an excerpt from our Morning Briefing dated August 18, 2025.

Exercising Fed Put Would Fuel Stock Market Meltup.

Stock investors have been joyously discounting a Fed rate cut in September following the release of July’s weaker-than-expected employment report. The S&P 500 rose to yet another record high on Thursday. It is up 3.4% since the close on August 1—the day of the disappointing jobs report—through Friday’s close. There hasn’t been a similar party in the bond market since then, as the 10-year Treasury yield has risen 10 basis points over the same period (Fig. 6 below).

Figure 6

Notwithstanding my concerns about an adverse bond market reaction to a Fed rate cut in September, I am not as sure about what the bond yield will do as I am about what stock prices will do. Stocks will rise on expectations of another rate cut before the end of the year. What could be a better development for the stock market than another Fed Put when the economy doesn’t need the Fed’s help?!

In this scenario, the Fed could very well fuel a wild meltup in the stock market. Valuation multiples would get even more stretched than they are already. On a weekly basis, the Buffett Ratio rose to a record 3.1 during the August 14 week using the forward price-to-sales ratio of the S&P 500 (Fig. 7 below). That same week, the forward P/E of the index rose to 22.5 (Fig. 8 below). It would need to rise only another 11% to match its record high of 25.0, hit just before the Tech Wreck of 2000.

Figure 7
Figure 8