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InterforIFSPF +2.28%67 Shiller PE Ratio is 9.94 as of Aug. 21, 2026, which is 36% below its 10-year median of 15.56. GuruFocus rates IFSPF with a GF Score™ of 67/100 and a GF Value™ of $8.20 (Significantly Overvalued). The stock has 8 warning signs investors should review. Among 189 Forest Products companies, Interfor ranks better than 59.79% on this metric.
As of today (2026-08-21), Interfor's current share price is $11.03. Interfor's E10 for the quarter that ended in Jun. 2026 was $1.11. Interfor's Shiller PE Ratio for today is 9.94.
The historical rank and industry rank for Interfor's Shiller PE Ratio or its related term are showing as below:
IFSPF'
s Shiller PE Ratio Range Over the Past 10 Years
Min: 4.01 Med: 15.56 Max: 2197
Current: 9.59
During the past years, Interfor's highest Shiller PE Ratio was 2197.00. The lowest was 4.01. And the median was 15.56.
IFSPF's Shiller PE Ratio is ranked better than 59.79% of 189
companies
in the Forest Products industry
Industry Median: 11.65
vs IFSPF: 9.59
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.
Interfor's adjusted earnings per share data for the three months ended in Jun. 2026 was $0.014. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $1.11 for the trailing ten years ended in Jun. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Interfor (OTCPK:IFSPF) 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.
Interfor Shiller PE Ratio Related Terms
Interfor Shiller PE Ratio Historical Data
* Premium members only.
The historical data trend for Interfor'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.
IFSPF vs SSD, UFPI, BCC: Shiller PE Ratio Comparison
For the Lumber & Wood Production subindustry, Interfor'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.
Interfor Shiller PE Ratio vs Forest Products Industry
For the Forest Products industry and Basic Materials sector, Interfor's Shiller PE Ratio distribution charts can be found below:
* The bar in red indicates where Interfor'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.
Interfor'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.
Interfor's E10 for the quarter that ended in Jun. 2026 is calculated as:
For example, Interfor'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.
Interfor (IFSPF) has a Shiller PE Ratio of 9.94 as of Aug. 21, 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 Interfor and its competitors. This is 36% below median its historical median of 15.56. Over the past decade, Interfor's Shiller PE Ratio has ranged from 4.01 to 2,197.00. According to the industry distribution chart, Interfor ranks #76 out of 189 companies in the Forest Products industry, placing it in the top 40.2%.
Is Interfor's Shiller PE Ratio too high?
Interfor's current Shiller PE Ratio of 9.94 is 36% below median its 10-year median of 15.56. Over the past 10 years, this metric has ranged from a low of 4.01 to a high of 2,197.00. The Forest Products industry median Shiller PE Ratio is 11.65. Interfor's value of 9.94 is 14.7% below this industry median. Based on the distribution chart, Interfor ranks #76 out of 189 companies in the Forest Products industry, which is above the industry midpoint. Overall, Interfor has a GF Score™ of 67/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Interfor's Shiller PE Ratio compare to SSD and UFPI?
According to the Forest Products industry distribution chart, Interfor ranks #76 out of 189 companies for Shiller PE Ratio. This puts Interfor in the upper half of its industry. The industry median Shiller PE Ratio is 11.65. Interfor's value of 9.94 is 14.7% below this benchmark. Historically, Interfor's own Shiller PE Ratio has ranged from 4.01 to 2,197.00 over the past decade. While the company's 10-year median is 15.56 vs. the industry median of 11.65, Interfor has consistently been below 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 Forest Products company?
The median Shiller PE Ratio among Forest Products companies is 11.65, based on 189 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. Interfor's current Shiller PE Ratio of 9.94 is 14.7% below 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 Interfor and its competitors. For the Forest Products industry, the median Shiller PE Ratio is 11.65 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Interfor's current Shiller PE Ratio is 9.94, which is 36% below median its own 10-year median of 15.56. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Interfor stock overvalued right now?
Based on GuruFocus' analysis, Interfor (IFSPF) is currently considered Significantly Overvalued. The stock's GF Value™ is $8.20, compared to a current price of $11.03 — trading 34.5% above its estimated fair value. The current Shiller PE Ratio is 9.94, which is 36% below median its 10-year median of 15.56 and 14.7% below the Forest Products industry median of 11.65. Interfor's overall GF Score™ is 67/100 with 8 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 Interfor (IFSPF), the current Shiller PE Ratio is 9.94 as of Aug. 21, 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 Interfor (IFSPF) Overvalued in 2026?
Based on GuruFocus' analysis, Interfor stock appears to be overvalued.
The current stock price of $11.03 is trading 34.5% above its estimated GF Value™ of $8.20.
GuruFocus considers Interfor to be Significantly Overvalued.
Key valuation signals for IFSPF:
Shiller PE Ratio: 9.94 (36% below median its 10-year median of 15.56)
GF Value™: $8.20 vs. price of $11.03 (34.5% above fair value)
Industry Position: 14.7% below the Forest Products median (#76 of 189)
No single metric tells the full story. See the IFSPF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Interfor Corp produces and sells lumber, timber, and other wood products. The company operates sawmills to convert timber into lumber, logs, wood chips, and other wood products for sale. The firm's products are Dimension Lumber, Engineered Wood Products, and Interfor Blue. It has a single operating segment, solid wood products. The majority of revenue is generated from the sale of lumber. Its geographic segments are the United States, Canada, Japan, China/Taiwan, and Other exports. The majority of revenue comes from the United States.
67GF Score
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