Have stock prices lost touch with reality?

Robert Shiller’s cyclically-adjusted PE (or CAPE) is at a similar level to the 1929 peak before the greatest crash in US history. CAPE uses a 10-year average of inflation-adjusted earnings in order to smooth out fluctuations in earnings. The current reading of 29.2 is almost double the low during the 2008 global financial crisis (GFC).

S&P 500

We use a different approach. Rather than smoothing earnings with a moving average, we use highest trailing earnings as the best indication of future earnings potential. Earnings may fall during a recession but stock prices tend to fall by less, in expectation of a recovery. Our projected value for the end of Q4 is based on highest trailing 12 months earnings at Q1 of 2022. At 20.16, the PE is higher than 1929 and 1987 peaks, which preceded major crashes, but still much lower than the Dotcom bubble.

S&P 500

Forward price-earnings ratio is more reasonable at 17.91.

S&P 500

But S&P earnings forecasts seem optimistic, with no indication of a recession in 2023.

S&P 500 Historic Earnings & Forecast Earnings

Declining real sales growth, in the first half of 2022, suggests that profit margins will come under pressure, with both earnings and multiples declining in the next 12 months.

S&P 500 Real Sales Growth

Shifting from earnings to a wider perspective, price-to-sales for the S&P 500 avoids distortion caused by fluctuating profit margins. Projected to rise to 2.30 in Q4 (based on the current S&P price and Q3 sales), prices are similarly elevated compared to the long-term average of 1.68.

S&P 500/Sales

Price to book value, estimated at 4.01 for Q4, shows a similar rise compared to a long-term average of 3.07.

S&P 500/Book Value

Warren Buffett’s favorite indicator of market pricing compares stock market capitalization to GDP, eliminating distortions from fluctuating profit margins and stock buybacks. The Q3 value of 2.0 is way above the long-term average of 1.03, suggesting that stocks are way over-priced.

US Stock Market Capitalization/GDP

Australia

Data is a lot more difficult to obtain for the ASX, but the ratio of market cap to GDP (Buffett’s indicator) is a lot more modest, at 0.96, indicating prices are close to fair value.

ASX Stock Market Capitalization/GDP

Conclusion

The chart below shows how rising US liquidity (black) fueled rising stock prices as reflected by the ratio of market cap to GDP (blue). The steep rise in the money stock (M2 excluding time deposits) after the 2008 GFC, created a scarcity of investment-grade assets, driving down interest rates and driving up stock prices.

US Stock Market Capitalization & M2/GDP

Central banks are now shrinking liquidity, in an attempt to tame inflation, and stock prices are likely to fall.

We estimate that US stocks are likely to fall between 30% and 50% if there is a recession next year. Australian stock prices are a lot closer to fair value and only likely to fall 10% to 20% in the event of a recession.

In our view a recession is almost inevitable in 2023 as the Fed cannot inject liquidity to create a soft landing — as it has done repeatedly in recent times — because of the threat of inflation.

Acknowledgements

  • The graphs of Robert Shillers CAPE, S&P 500 real sales growth, and S&P 500 price-to-book value are from multpl.com
  • Sales and earnings for the S&P 500 are from spglobal.com
  • All other US data is from FRED at stlouisfed.org
  • Market cap for the ASX is from asx.com.au while GDP is from the RBA.

Is the S&P 500 overvalued?

The daily press appears convinced the S&P 500 is overvalued and due for a crash. Yet the macro-economic and volatility filters that we use at Porter Capital and Research & Investment — to identify market risk so that we can move to cash when risks are elevated — show no signs of stress. So I have been delving into some of the aggregate index data, kindly provided by Standard and Poors, to see whether some of their arguments hold water.

The Price-Earnings ratio for the S&P 500 itself is not excessive when compared to the last decade.

S&P 500 Price-Earnings ratio

The bears argue, however, that earnings are unsustainable. One reason advanced for this is that earnings growth has outstripped sales, with corporations focusing on the bottom line rather than business growth.

Faced with weak domestic demand, large US corporates have actively sought to manage their expenses so as to meet and exceed the market’s expectations. Combined with the unwinding of provisions taken in the GFC, cost management has allowed US corporates to achieve a 124% increase in 12-month trailing earnings off the back of a 25% increase in 12-month trailing sales since October 2009.
~ Elliott Clarke, Westpac

That may be so, but any profit increase would look massive if compared to earnings in 2009. When we plot earnings against sales (per share), it tells a different story. Earnings as a percentage of sales is in the same band (7% – 9%) as 2003 to 2006. A rise above 9% would suggest that earnings may not be sustainable, but not if they continue in their current range.

S&P 500 Earnings/Sales

The second reason advanced is that business investment is falling. Westpac put up a chart that shows US equipment investment growth is close to zero. But we also need to consider that accelerated tax write-offs led to a surge in investment in 2009/2010. The accelerated write-offs expired, but the level of investment merely stopped growing and has not fallen as I had expected.

Westpac: US Equipment Investment Poor

Private (non-residential) fixed investment as a whole is rising as a percentage of GDP, not falling.

S&P 500 Price to Book Value

Lastly, when we compare the S&P 500 to underlying net asset value per share, it shows how frothy the market was before the Dotcom crash, with the index trading at 5 times book value. That kind of premium is clearly unsustainable without double-digit GDP growth, which was never going to happen. But the current ratio of below 2.50 is modest compared to the past decade and quite sustainable.

S&P 500 Price to Book Value

I am not saying that everything is rosy — it never is — but if sales and earnings continue to grow apace, and with private fixed investment rising, the current price-earnings ratio does not look excessive.

Is the S&P 500 overvalued?

The daily press appears convinced the S&P 500 is overvalued and due for a crash. Yet the macro-economic and volatility filters that we use at Porter Capital and Research & Investment — to identify market risk so that we can move to cash when risks are elevated — show no signs of stress. So I have been delving into some of the aggregate index data, kindly provided by Standard and Poors, to see whether some of their arguments hold water.

The Price-Earnings ratio for the S&P 500 itself is not excessive when compared to the last decade.

S&P 500 Price-Earnings ratio

The bears argue, however, that earnings are unsustainable. One reason advanced for this is that earnings growth has outstripped sales, with corporations focusing on the bottom line rather than business growth.

Faced with weak domestic demand, large US corporates have actively sought to manage their expenses so as to meet and exceed the market’s expectations. Combined with the unwinding of provisions taken in the GFC, cost management has allowed US corporates to achieve a 124% increase in 12-month trailing earnings off the back of a 25% increase in 12-month trailing sales since October 2009.
~ Elliott Clarke, Westpac

That may be so, but any profit increase would look massive if compared to earnings in 2009. When we plot earnings against sales (per share), it tells a different story. Earnings as a percentage of sales is in the same band (7% – 9%) as 2003 to 2006. A rise above 9% would suggest that earnings may not be sustainable, but not if they continue in their current range.

S&P 500 Earnings/Sales

The second reason advanced is that business investment is falling. Westpac put up a chart that shows US equipment investment growth is close to zero. But we also need to consider that accelerated tax write-offs led to a surge in investment in 2009/2010. The accelerated write-offs expired, but the level of investment merely stopped growing and has not fallen as I had expected.

Westpac: US Equipment Investment Poor

Private (non-residential) fixed investment as a whole is rising as a percentage of GDP, not falling.

S&P 500 Price to Book Value

Lastly, when we compare the S&P 500 to underlying net asset value per share, it shows how frothy the market was before the Dotcom crash, with the index trading at 5 times book value. That kind of premium is clearly unsustainable without double-digit GDP growth, which was never going to happen. But the current ratio of below 2.50 is modest compared to the past decade and quite sustainable.

S&P 500 Price to Book Value

I am not saying that everything is rosy — it never is — but if sales and earnings continue to grow apace, and with private fixed investment rising, the current price-earnings ratio does not look excessive.