Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
CaterpillarCAT +1.68%89 Shiller PE Ratio is 56.07 as of Sep. 02, 2026, which is 93% above its 10-year median of 29.01. GuruFocus rates CAT with a GF Score™ of 89/100 and a GF Value™ of $457.32 (Significantly Overvalued). The stock has 3 warning signs investors should review. Among 137 Farm & Heavy Construction Machinery companies, Caterpillar ranks worse than 91.24% on this metric.
As of today (2026-09-02), Caterpillar's current share price is $792.28. Caterpillar's E10 for the quarter that ended in Jun. 2026 was $14.13. Caterpillar's Shiller PE Ratio for today is 56.07.
The historical rank and industry rank for Caterpillar's Shiller PE Ratio or its related term are showing as below:
CAT'
s Shiller PE Ratio Range Over the Past 10 Years
Min: 14.45 Med: 29.01 Max: 74.83
Current: 56.07
During the past years, Caterpillar's highest Shiller PE Ratio was 74.83. The lowest was 14.45. And the median was 29.01.
CAT's Shiller PE Ratio is ranked worse than 91.24% of 137
companies
in the Farm & Heavy Construction Machinery industry
Industry Median: 20.32
vs CAT: 56.07
E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years.
Caterpillar's adjusted earnings per share data for the three months ended in Jun. 2026 was $7.770. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $14.13 for the trailing ten years ended in Jun. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Caterpillar (NYSE:CAT) Shiller PE Ratio Explanation
Compared with the regular PE Ratio, which works poorly for cyclical businesses, the Shiller PE Ratio smoothed out the fluctuations of profit margins during business cycles. Therefore it is more accurate in reflecting the valuation of the company.
If a company has consistent business performance, the Shiller PE Ratio should give similar results to regular PE Ratio.
Compared with the PS Ratio, the Shiller PE Ratio makes the comparison between different industries more meaningful.
Be Aware
Shiller PE Ratio assumes that over the long term, businesses and profitability revert to their means. If a company's business model does not work in the future compared with the past, Shiller PE Ratio and PS Ratio will give false valuations.
Caterpillar Shiller PE Ratio Related Terms
Caterpillar Shiller PE Ratio Historical Data
* Premium members only.
The historical data trend for Caterpillar's Shiller PE Ratio can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
For the Farm & Heavy Construction Machinery subindustry, Caterpillar's Shiller PE Ratio, along with its competitors' market caps and Shiller PE Ratio data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Caterpillar Shiller PE Ratio vs Farm & Heavy Construction Machinery Industry
For the Farm & Heavy Construction Machinery industry and Industrials sector, Caterpillar's Shiller PE Ratio distribution charts can be found below:
* The bar in red indicates where Caterpillar's Shiller PE Ratio falls into.
For Shiller PE Ratio, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller PE Ratio is also called PE10.
The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.
Caterpillar's Shiller PE Ratio for today is calculated as
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
Caterpillar's E10 for the quarter that ended in Jun. 2026 is calculated as:
For example, Caterpillar's adjusted earnings per share data for the three months ended in Jun. 2026 was:
Add all the adjusted EPS together and divide 10 will get our E10.
Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.
Caterpillar (CAT) has a Shiller PE Ratio of 56.07 as of Sep. 02, 2026. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on Caterpillar and its competitors. This is 93% above median its historical median of 29.01. Over the past decade, Caterpillar's Shiller PE Ratio has ranged from 14.45 to 74.83. According to the industry distribution chart, Caterpillar ranks #125 out of 137 companies in the Farm & Heavy Construction Machinery industry, placing it in the top 91.2%.
Is Caterpillar's Shiller PE Ratio too high?
Caterpillar's current Shiller PE Ratio of 56.07 is 93% above median its 10-year median of 29.01. Over the past 10 years, this metric has ranged from a low of 14.45 to a high of 74.83. The Farm & Heavy Construction Machinery industry median Shiller PE Ratio is 20.32. Caterpillar's value of 56.07 is 175.9% above this industry median. Based on the distribution chart, Caterpillar ranks #125 out of 137 companies in the Farm & Heavy Construction Machinery industry, which is in the bottom quartile relative to peers. Overall, Caterpillar has a GF Score™ of 89/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Caterpillar's Shiller PE Ratio compare to DE and PCAR?
According to the Farm & Heavy Construction Machinery industry distribution chart, Caterpillar ranks #125 out of 137 companies for Shiller PE Ratio. This places Caterpillar in the lower half of its industry. The industry median Shiller PE Ratio is 20.32. Caterpillar's value of 56.07 is 175.9% above this benchmark. Historically, Caterpillar's own Shiller PE Ratio has ranged from 14.45 to 74.83 over the past decade. While the company's 10-year median is 29.01 vs. the industry median of 20.32, Caterpillar has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Shiller PE Ratio for a Farm & Heavy Construction Machinery company?
The median Shiller PE Ratio among Farm & Heavy Construction Machinery companies is 20.32, based on 137 companies in the industry. Companies in the top quartile (top 25%) have a Shiller PE Ratio significantly above this median, while those in the bottom quartile fall well below. However, Shiller PE Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Caterpillar's current Shiller PE Ratio of 56.07 is 175.9% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Shiller PE Ratio mean?
A high Shiller PE Ratio can signal that a stock is expensive relative to its fundamentals. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on Caterpillar and its competitors. For the Farm & Heavy Construction Machinery industry, the median Shiller PE Ratio is 20.32 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Caterpillar's current Shiller PE Ratio is 56.07, which is 93% above median its own 10-year median of 29.01. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Caterpillar stock overvalued right now?
Based on GuruFocus' analysis, Caterpillar (CAT) is currently considered Significantly Overvalued. The stock's GF Value™ is $457.32, compared to a current price of $792.28 — trading 73.2% above its estimated fair value. The current Shiller PE Ratio is 56.07, which is 93% above median its 10-year median of 29.01 and 175.9% above the Farm & Heavy Construction Machinery industry median of 20.32. Caterpillar's overall GF Score™ is 89/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Shiller PE Ratio calculated?
Shiller PE Ratio is calculated from a company's financial statements. For Caterpillar (CAT), the current Shiller PE Ratio is 56.07 as of Sep. 02, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is Caterpillar (CAT) Overvalued in 2026?
Based on GuruFocus' analysis, Caterpillar stock appears to be overvalued.
The current stock price of $792.28 is trading 73.2% above its estimated GF Value™ of $457.32.
GuruFocus considers Caterpillar to be Significantly Overvalued.
Key valuation signals for CAT:
Shiller PE Ratio: 56.07 (93% above median its 10-year median of 29.01)
GF Value™: $457.32 vs. price of $792.28 (73.2% above fair value)
Industry Position: 175.9% above the Farm & Heavy Construction Machinery median (#125 of 137)
No single metric tells the full story. See the CAT stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Caterpillar is the world's leading manufacturer of construction and mining equipment, off-highway diesel and natural gas engines, industrial gas turbines, and diesel-electric locomotives. Its reporting segments are construction, resource, energy, and transportation. Market share approaches 20% across many products. Caterpillar operates a captive finance subsidiary to facilitate sales. The firm has a global reach that is approximately evenly balanced between the US and the rest of the world. Construction skews more domestic, while the other divisions are more geographically diversified. An independent network of over 150 dealers operates approximately 2,800 facilities, giving Caterpillar reach into about 190 countries for sales and support services.
89GF Score
Get the complete analysis for CAT
Shiller PE Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
CAT has been successfully added to your 
