CAPE Ratio explains: Why this one metric predicts whether stocks are overvalued
This one metric tells you whether markets are overvalued. Huber's thesis shows: CAPE > 30 leads to crashes. Understand the logic.
- How to understand what is the cape ratio? and use it for your capital strategy
- How to understand historical reviews since 1881 and use it for your capital strategy
- How to understand predictive power of cape and use it for your capital strategy
- How to understand cape country comparison and use it for your capital strategy
What is the CAPE ratio?
CAPE = Cyclically Adjusted Price Earnings Ratio. It is the "smoothed" version of the P/E ratio that takes into account average earnings over the last 10 years.
The formula:
CAPE = Stock Index Price / (Average Inflation-Adjusted Gains Over 10 Years)
The advantage: CAPE filters out cyclical profit fluctuations and shows the structural valuation.
Historical reviews since 1881
Huber shows in his analysis (Figure 53): The S&P 500 has had an average CAPE of 16.6 since its inception. This is your baseline.
What do the numbers mean?
- CAPE < 15:Undervalued – good buying opportunity
- CAPE 15-20:Fair value – normal valuation level
- CAPE 20-25:Overrated – increased crash risk
- CAPE > 30:Extreme bubble – almost 100% certain crash is coming
Predictive power of CAPE
Huber analyzes the return distribution by CAPE level (Table 6). The result is bleakly clear:
The message is clear:The higher the CAPE, the lower the future returns. If you invest at CAPE > 30, you can only expect an annual return of 1.2%.
CAPE country comparison
Not all markets are equally overvalued. Huber analyzes the CAPE ratios of various countries (Table 5):
Conclusion:The USA is overvalued at CAPE 28.3. Europe and emerging markets offer cheaper entry points - that's a practical lesson from Huber's data.
Daniel Huber, M.A. — Hochschule Mainz, 2020 | Betreut von Prof. Dr. Arno Peppmeier
13.174 Wörter · 92 Abbildungen · 39 Tabellen · Markowitz-Effizienzlinienanalyse
What you now know — and how to use it
- You know the core concepts and can apply them directly to your situation
- You know which mistakes to avoid — saving you time and capital
- You understand how this building block fits into your overall strategy
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