How expensive are US equities?

How worried should equity investors be about valuation? The S&P 500 is trading at a forward P/E of 20.6, which is elevated compared to its 5-year average of 19.1 and 10-year average of 17.8. Moreover, the 10-year Treasury yield of 4.5% is becoming a more attractive alternative to owning stocks.

 

 

Here are the bull and bear cases.
 

 

The bear case

Let’s begin with the bear case, which is far easier to make. This analysis from Leuthold Group shows that valuations are highly elevated by historical standards on a variety of metrics.
 

 

NYU Stern finance professor Aswath Damodaran, who is considered to be the dean of valuation, published his latest analysis of the equity risk premium (ERP). He calculated the ERP to be 4.23%, which is somewhat compressed by historical standards. For some perspective, the ERP at the start of 2022 was 4.24%, and 2022 was a negative year for the S&P 500.
 

 

Damodaran appeared in a CNBC interview soon afterward on the day before the CPI report and said that inflation, which is a key driver of the bond market’s risk premium, will determine where stock prices go for the rest of this year.

 

 

As a reminder, PCE is the Fed’s preferred inflation metric. In the wake of the hotter-than-expected March CPI but cooler-than-expected PPI reports, the Cleveland Fed’s nowcast of March core PCE is 0.3%, which is likely to keep the Fed on hold for the time being.
 

 

 

A glass half full?

That said, the outlook isn’t totally dire. Despite the market’s pivot to more hawkish expectations of rate cuts, the March FOMC minutes revealed a silver lining that a taper of quantitative tightening is just around the corner: “The vast majority of participants thus judged it would be prudent to begin slowing the pace of [balance sheet] runoff fairly soon”, which would provide greater liquidity to the banking system and create tailwinds for equity prices. However, “all participants emphasized the importance of communicating that a decision to slow the pace of runoff would have no implications for the stance of monetary policy”.

 

In addition, Damodaran admitted that the evaluation of ERP depends on the eyes of the beholder. At 4.23%, the ERP is either cheap by 2008–2023 standards or about average by 1960–2023 standards.
 

So are stocks cheap or expensive?

 

BoA quantitative strategist Savita Subramanian outlined her bull case in a Bloomberg podcast, which is well worth a listen in its entirety. Even though her own valuation metrics came to a similar conclusion as the Leuthold Group analysis that the stock market is expensive by historical standards, she explained the reasons why she is still constructive on the market.

 

First, equity allocation is still relatively low. She cited a model where BoA polls Street strategists’ recommended equity allocations as a contrarian indicator and found that enthusiasm for stocks is still below average. However, that model has undergone changes in its buy and sell signal over the course of its history. Nevertheless, the BoA Global Fund Manager Survey, whose methodology hasn’t changed, shows that equity weights aren’t extreme.

 

 

Mostly, Subramanian makes the point that the quality of S&P 500 companies has improved over the years. Lower-quality stocks with high interest risk have lagged and duration, or interest rate sensitivity, of the S&P 500 has fallen, which makes the stock market more resilient to a higher rate environment. Moreover, megacap growth stocks have become more profitable. They restructured to contain costs in early 2023 and they began to pay dividends and buy back shares to return more immediate value to shareholders.

 

From a top-down perspective, the economy is undergoing a strong productivity cycle, though the productivity effects of AI adoption remain to be seen. Earnings quality has improved. The corporate environment pivoted from borrowing money for buybacks and reaping the lower cost and tax arbitrage effects of globalization to better organic growth.
 

 

Do valuations matter?

At the end of the day, the valuation debate is moot unless you have a long-term time horizon. Analysis from JPMorgan Asset Management shows forward P/E ratios only have a weak inverse relationship with returns on a one-year time horizon, though the relationship is tighter on a 5-year time frame.
 

Valuation doesn’t matter until it matters. My analytical framework depends on a combination of valuation and macro and technical analysis. The last two factors tell me whether the stock market might rise or fall. If it were to fall, valuation tells me how far it falls.
 

 

From a tactical perspective, the market and economy are undergoing mid-cycle expansion. P/E expansion has elevated stock prices, but as long as earnings estimates rise, downside risk should be relatively limited.
 

 

Looking out longer term, the key question to equity valuation is the magnitude of the margin gains from higher productivity owing to the AI transformation. The 12-month normalized relative performance of the NASDAQ 100 as a proxy for AI stocks is in the middle of its historical range, indicating little excess enthusiasm for the AI investment theme.
 

 

A St. Louis Fed study that estimated productivity gains from past technologies, as well as the pace of technology adoption, was eye opening. The researchers concluded that the productivity effects of AI adoption will be relatively slow by historical standards and compared it to PC and cloud computing:

Despite popular interest in the productive potential of workplace AI and concerns that it may displace workers, early evidence on the diffusion of AI seems to suggest a pattern similar to those of personal computers and cloud computing. The U.S. Census Bureau regularly surveys firms on their recent business practices, including their use of emerging technologies. Over the past five years, several of these survey waves have asked firms whether they use AI in production. We average the reported use in surveys done in 2023-2024 and compare it against reported use in 2018; the percentage of firms reporting any use of AI in production has increased from around 3% in 2018 to around 4.4% on average across sample waves in 2023-2024.

 

The lack of widespread usage may continue for a while: When asked whether they expect to use AI six months from now, less than 7% of the same firms said yes. If history is any guide, AI productivity gains might take a long time to realize.
The accompanying chart shows the pace of PC adoption.
 

 

This accompanying chart shows the pace of cloud computing adoption.
 

 

The accompanying chart summarizes the trade-off between value and fundamental momentum. There are much better values in non-U.S. markets, but the U.S. is a standout on earnings estimate revision. Japan looks like a bargain on both historical valuation and earnings and that market has recently achieved new all-time highs, but continuing weakness in the Yen has been a drag on returns for foreigners.

 

Do you want to be a value or momentum investor?

 

 

In conclusion, I began by rhetorically asking if investor should worry about the elevated levels of equity valuation. The equity valuation question is a tricky one because it is only useful for investors with long time horizons. Moreover, equity returns depend on the evolution of other factors such as the evolution of inflationary expectations and the bond market’s term premium.

 

In the short term, stock prices are elevated because of P/E expansion, but as long as earnings estimates continue to rise, downside pressure should be limited. Longer term, one key question is the uncertain productivity gains from AI adoption.

 

1 thought on “How expensive are US equities?

  1. One thing to keep in mind is the denominator, namely the dollar.
    Are we in a new era? ZIRP I would say was a new era, it had never happened before, and I don’t think we are done with it’s consequences.
    I don’t feel sorry for my mortgage lender who was so kind as to lend me money at 2 7/8 % fixed for 30 years, while I can do better than that with bonds, but this must hurt.
    So what is the new era now? Well, we have some inflation, we have increased costs of carrying debt. The largest economies all seem to be getting further in debt and as interest rates rise this debt accelerates.
    I know I keep repeating that the deficits put money into the economy and contribute to inflation, but they are going up higher and higher.
    The denominator, ie the dollar is getting smaller and if this accelerates, equity prices should go up.
    Metrics like the P/E may not work any more if the $ loses value rapidly…not the $ vs the euro or yen, but the purchasing power.
    Look at a long term chart of the $SPX vs $Gold . But gold also fluctuates in value.
    Remember also that none of those guys out there want to do us favors, so all news needs to be questioned.
    When somebody says good news is bad news, or vice versa, that’s crap.
    But they can push the market one way or another.
    Momentum and trends matter.
    Valuations, if you look at 12 years out, at these prices your return from the S&P are basically zero, only that’s in 2024 dollars, what will a 2036 dollar buy compared to 2024?
    Currency debasement has happened many times before. If we are entering a phase of accelerating debasement then current P/Es may be less meaningful.

Comments are closed.