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Preformed Line Products CoPLPC -4.55%74 Shiller PE Ratio is 39.39 as of Jul. 25, 2026, which is 142% above its 10-year median of 16.31. GuruFocus rates PLPC with a GF Score™ of 74/100 and a GF Value™ of $171.67 (Significantly Overvalued). The stock has 2 warning signs investors should review. Among 1,836 Industrial Products companies, Preformed Line Products Co ranks worse than 66.01% on this metric.
The historical rank and industry rank for Preformed Line Products Co's Shiller PE Ratio or its related term are showing as below:
PLPC'
s Shiller PE Ratio Range Over the Past 10 Years
Min: 9.86 Med: 16.31 Max: 50.08
Current: 39.41
During the past years, Preformed Line Products Co's highest Shiller PE Ratio was 50.08. The lowest was 9.86. And the median was 16.31.
PLPC's Shiller PE Ratio is ranked worse than 66.01% of 1836
companies
in the Industrial Products industry
Industry Median: 27.42
vs PLPC: 39.41
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.
Preformed Line Products Co's adjusted earnings per share data for the three months ended in Mar. 2026 was $2.140. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $7.90 for the trailing ten years ended in Mar. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Preformed Line Products Co (NAS:PLPC) 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.
Preformed Line Products Co Shiller PE Ratio Related Terms
Preformed Line Products Co 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.
PLPC vs EOSE, AMPX, FCEL: Shiller PE Ratio Comparison
For the Electrical Equipment & Parts subindustry, Preformed Line Products Co'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.
Preformed Line Products Co Shiller PE Ratio vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, Preformed Line Products Co's Shiller PE Ratio distribution charts can be found below:
* The bar in red indicates where Preformed Line Products Co's Shiller PE Ratio falls into.
Preformed Line Products Co 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.
Preformed Line Products Co (PLPC) has a Shiller PE Ratio of 39.39 as of Jul. 25, 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 Preformed Line Products Co and its competitors. This is 142% above median its historical median of 16.31. Over the past decade, Preformed Line Products Co's Shiller PE Ratio has ranged from 9.86 to 50.08. According to the industry distribution chart, Preformed Line Products Co ranks #1212 out of 1836 companies in the Industrial Products industry, placing it in the top 66%.
Is Preformed Line Products Co's Shiller PE Ratio too high?
Preformed Line Products Co's current Shiller PE Ratio of 39.39 is 142% above median its 10-year median of 16.31. Over the past 10 years, this metric has ranged from a low of 9.86 to a high of 50.08. The Industrial Products industry median Shiller PE Ratio is 27.42. Preformed Line Products Co's value of 39.39 is 43.7% above this industry median. Based on the distribution chart, Preformed Line Products Co ranks #1212 out of 1836 companies in the Industrial Products industry, which is below the industry midpoint. Overall, Preformed Line Products Co has a GF Score™ of 74/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Preformed Line Products Co's Shiller PE Ratio compare to EOSE and AMPX?
According to the Industrial Products industry distribution chart, Preformed Line Products Co ranks #1212 out of 1836 companies for Shiller PE Ratio. This places Preformed Line Products Co in the lower half of its industry. The industry median Shiller PE Ratio is 27.42. Preformed Line Products Co's value of 39.39 is 43.7% above this benchmark. Historically, Preformed Line Products Co's own Shiller PE Ratio has ranged from 9.86 to 50.08 over the past decade. While the company's 10-year median is 16.31 vs. the industry median of 27.42, Preformed Line Products Co 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 an Industrial Products company?
The median Shiller PE Ratio among Industrial Products companies is 27.42, based on 1,836 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. Preformed Line Products Co's current Shiller PE Ratio of 39.39 is 43.7% 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 Preformed Line Products Co and its competitors. For the Industrial Products industry, the median Shiller PE Ratio is 27.42 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Preformed Line Products Co's current Shiller PE Ratio is 39.39, which is 142% above median its own 10-year median of 16.31. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Preformed Line Products Co stock overvalued right now?
Based on GuruFocus' analysis, Preformed Line Products Co (PLPC) is currently considered Significantly Overvalued. The stock's GF Value™ is $171.67, compared to a current price of $311.22 — trading 81.3% above its estimated fair value. The current Shiller PE Ratio is 39.39, which is 142% above median its 10-year median of 16.31 and 43.7% above the Industrial Products industry median of 27.42. Preformed Line Products Co's overall GF Score™ is 74/100 with 2 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 Preformed Line Products Co (PLPC), the current Shiller PE Ratio is 39.39 as of Jul. 25, 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 Preformed Line Products Co (PLPC) Overvalued in 2026?
Based on GuruFocus' analysis, Preformed Line Products Co stock appears to be overvalued.
The current stock price of $311.22 is trading 81.3% above its estimated GF Value™ of $171.67.
GuruFocus considers Preformed Line Products Co to be Significantly Overvalued.
Key valuation signals for PLPC:
Shiller PE Ratio: 39.39 (142% above median its 10-year median of 16.31)
GF Value™: $171.67 vs. price of $311.22 (81.3% above fair value)
Industry Position: 43.7% above the Industrial Products median (#1212 of 1836)
No single metric tells the full story. See the PLPC stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Preformed Line Products Co is a designer and manufacturer of products and systems for constructing and maintaining overhead and underground networks for energy, telecommunication, cable operators, data communication, and other industries. The Company's primary products support, protect, connect, terminate, and secure cables and wires. The Company provides helical solutions, connectors, fiber optic and copper splice closures, solar framing applications, and electric vehicle charging station foundations. The Company's customers include public and private energy utilities and communication companies, cable operators, contractors and subcontractors, distributors, and value-added resellers. Geographically, the company operates in four regions: PLP-USA, the Americas, EMEA, and Asia-Pacific.
74GF Score
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