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Sumitomo Electric IndustriesSMTOY -9.29%78 Shiller PE Ratio is 39.06 as of Sep. 15, 2026, which is 154% above its 10-year median of 15.37. GuruFocus rates SMTOY with a GF Score™ of 78/100 and a GF Value™ of $2.46 (Significantly Overvalued). The stock has 1 warning sign investors should review. Among 857 Vehicles & Parts companies, Sumitomo Electric Industries ranks worse than 80.98% on this metric.
The historical rank and industry rank for Sumitomo Electric Industries's Shiller PE Ratio or its related term are showing as below:
SMTOY'
s Shiller PE Ratio Range Over the Past 10 Years
Min: 8.78 Med: 15.37 Max: 70.45
Current: 39.06
During the past years, Sumitomo Electric Industries's highest Shiller PE Ratio was 70.45. The lowest was 8.78. And the median was 15.37.
SMTOY's Shiller PE Ratio is ranked worse than 80.98% of 857
companies
in the Vehicles & Parts industry
Industry Median: 18.71
vs SMTOY: 39.06
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.
Sumitomo Electric Industries's adjusted earnings per share data for the three months ended in Mar. 2026 was $0.194. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $0.16 for the trailing ten years ended in Mar. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Sumitomo Electric Industries (OTCPK:SMTOY) 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.
Sumitomo Electric Industries Shiller PE Ratio Related Terms
Sumitomo Electric Industries Shiller PE Ratio Historical Data
* 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.
Sumitomo Electric Industries Shiller PE Ratio Chart
SMTOY vs ORLY, AZO, GPC: Shiller PE Ratio Comparison
For the Auto Parts subindustry, Sumitomo Electric Industries'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.
Sumitomo Electric Industries Shiller PE Ratio vs Vehicles & Parts Industry
For the Vehicles & Parts industry and Consumer Cyclical sector, Sumitomo Electric Industries's Shiller PE Ratio distribution charts can be found below:
* The bar in red indicates where Sumitomo Electric Industries's Shiller PE Ratio falls into.
Sumitomo Electric Industries Shiller PE Ratio Calculation
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.
* 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.
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.
Sumitomo Electric Industries (SMTOY) has a Shiller PE Ratio of 39.06 as of Sep. 15, 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 Sumitomo Electric Industries and its competitors. This is 154% above median its historical median of 15.37. Over the past decade, Sumitomo Electric Industries' Shiller PE Ratio has ranged from 8.78 to 70.45. According to the industry distribution chart, Sumitomo Electric Industries ranks #694 out of 857 companies in the Vehicles & Parts industry, placing it in the top 81%.
Is Sumitomo Electric Industries' Shiller PE Ratio too high?
Sumitomo Electric Industries' current Shiller PE Ratio of 39.06 is 154% above median its 10-year median of 15.37. Over the past 10 years, this metric has ranged from a low of 8.78 to a high of 70.45. The Vehicles & Parts industry median Shiller PE Ratio is 18.71. Sumitomo Electric Industries' value of 39.06 is 108.8% above this industry median. Based on the distribution chart, Sumitomo Electric Industries ranks #694 out of 857 companies in the Vehicles & Parts industry, which is in the bottom quartile relative to peers. Overall, Sumitomo Electric Industries has a GF Score™ of 78/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Sumitomo Electric Industries' Shiller PE Ratio compare to ORLY and AZO?
According to the Vehicles & Parts industry distribution chart, Sumitomo Electric Industries ranks #694 out of 857 companies for Shiller PE Ratio. This places Sumitomo Electric Industries in the lower half of its industry. The industry median Shiller PE Ratio is 18.71. Sumitomo Electric Industries' value of 39.06 is 108.8% above this benchmark. Historically, Sumitomo Electric Industries' own Shiller PE Ratio has ranged from 8.78 to 70.45 over the past decade. While the company's 10-year median is 15.37 vs. the industry median of 18.71, Sumitomo Electric Industries 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 Vehicles & Parts company?
The median Shiller PE Ratio among Vehicles & Parts companies is 18.71, based on 857 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. Sumitomo Electric Industries's current Shiller PE Ratio of 39.06 is 108.8% 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 Sumitomo Electric Industries and its competitors. For the Vehicles & Parts industry, the median Shiller PE Ratio is 18.71 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sumitomo Electric Industries's current Shiller PE Ratio is 39.06, which is 154% above median its own 10-year median of 15.37. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sumitomo Electric Industries stock overvalued right now?
Based on GuruFocus' analysis, Sumitomo Electric Industries (SMTOY) is currently considered Significantly Overvalued. The stock's GF Value™ is $2.46, compared to a current price of $6.25 — trading 154.1% above its estimated fair value. The current Shiller PE Ratio is 39.06, which is 154% above median its 10-year median of 15.37 and 108.8% above the Vehicles & Parts industry median of 18.71. Sumitomo Electric Industries' overall GF Score™ is 78/100 with 1 warning sign 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 Sumitomo Electric Industries (SMTOY), the current Shiller PE Ratio is 39.06 as of Sep. 15, 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 Sumitomo Electric Industries (SMTOY) Overvalued in 2026?
Based on GuruFocus' analysis, Sumitomo Electric Industries stock appears to be overvalued.
The current stock price of $6.25 is trading 154.1% above its estimated GF Value™ of $2.46.
GuruFocus considers Sumitomo Electric Industries to be Significantly Overvalued.
Key valuation signals for SMTOY:
Shiller PE Ratio: 39.06 (154% above median its 10-year median of 15.37)
GF Value™: $2.46 vs. price of $6.25 (154.1% above fair value)
Industry Position: 108.8% above the Vehicles & Parts median (#694 of 857)
No single metric tells the full story. See the SMTOY stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Sumitomo Electric Industries Ltd manufactures and sells electric wires and cables, and other products. The company operates through five segments. The Automotive related business covers wire harnesses, anti-vibration rubber, hoses, electrical parts, and traffic control systems. The Electronics related business provides electronic wires, flexible printed circuits, fluoropolymer products, and metal components. The Environment and Energy related business handles power transmission equipment, substation systems, vacuum and beam equipment, and conductive products. The Industrial Materials business includes steel wire, tools, optical components, and sintered parts. The Information and Communication business offers fiber optic cables, communication equipment, and optical devices.
78GF Score
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