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Natural Alternatives InternationalNAII +1.96%48 Shiller PE Ratio is 5.62 as of Sep. 08, 2026, which is 50% below its 10-year median of 11.24. GuruFocus rates NAII with a GF Scoreâ„¢ of 48/100 and a GF Valueâ„¢ of $5.23 (Possible Value Trap). The stock has 6 warning signs investors should review. Among 1,127 Consumer Packaged Goods companies, Natural Alternatives International ranks better than 92.99% on this metric.
The historical rank and industry rank for Natural Alternatives International's Shiller PE Ratio or its related term are showing as below:
NAII'
s Shiller PE Ratio Range Over the Past 10 Years
Min: 3.75 Med: 11.24 Max: 43.28
Current: 5.62
During the past years, Natural Alternatives International's highest Shiller PE Ratio was 43.28. The lowest was 3.75. And the median was 11.24.
NAII's Shiller PE Ratio is ranked better than 92.99% of 1127
companies
in the Consumer Packaged Goods industry
Industry Median: 17.75
vs NAII: 5.62
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.
Natural Alternatives International's adjusted earnings per share data for the three months ended in Mar. 2026 was $-0.720. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $0.37 for the trailing ten years ended in Mar. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Natural Alternatives International (NAS:NAII) 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.
Natural Alternatives International Shiller PE Ratio Related Terms
Natural Alternatives International 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.
Natural Alternatives International Shiller PE Ratio Chart
NAII vs COOT, MTTCF, LIMX: Shiller PE Ratio Comparison
For the Packaged Foods subindustry, Natural Alternatives International'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.
Natural Alternatives International Shiller PE Ratio vs Consumer Packaged Goods Industry
For the Consumer Packaged Goods industry and Consumer Defensive sector, Natural Alternatives International's Shiller PE Ratio distribution charts can be found below:
* The bar in red indicates where Natural Alternatives International's Shiller PE Ratio falls into.
Natural Alternatives International 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.
Natural Alternatives International (NAII) has a Shiller PE Ratio of 5.62 as of Sep. 08, 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 Natural Alternatives International and its competitors. This is 50% below median its historical median of 11.24. Over the past decade, Natural Alternatives International's Shiller PE Ratio has ranged from 3.75 to 43.28. According to the industry distribution chart, Natural Alternatives International ranks #79 out of 1127 companies in the Consumer Packaged Goods industry, placing it in the top 7%.
Is Natural Alternatives International's Shiller PE Ratio too high?
Natural Alternatives International's current Shiller PE Ratio of 5.62 is 50% below median its 10-year median of 11.24. Over the past 10 years, this metric has ranged from a low of 3.75 to a high of 43.28. The Consumer Packaged Goods industry median Shiller PE Ratio is 17.75. Natural Alternatives International's value of 5.62 is 68.3% below this industry median. Based on the distribution chart, Natural Alternatives International ranks #79 out of 1127 companies in the Consumer Packaged Goods industry, which is in the top quartile — a strong position relative to peers. Overall, Natural Alternatives International has a GF Score™ of 48/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Natural Alternatives International's Shiller PE Ratio compare to COOT and MTTCF?
According to the Consumer Packaged Goods industry distribution chart, Natural Alternatives International ranks #79 out of 1127 companies for Shiller PE Ratio. This places Natural Alternatives International in the top 7% of its industry — outperforming the majority of peers. The industry median Shiller PE Ratio is 17.75. Natural Alternatives International's value of 5.62 is 68.3% below this benchmark. Historically, Natural Alternatives International's own Shiller PE Ratio has ranged from 3.75 to 43.28 over the past decade. While the company's 10-year median is 11.24 vs. the industry median of 17.75, Natural Alternatives International 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 Consumer Packaged Goods company?
The median Shiller PE Ratio among Consumer Packaged Goods companies is 17.75, based on 1,127 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. Natural Alternatives International's current Shiller PE Ratio of 5.62 is 68.3% 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 Natural Alternatives International and its competitors. For the Consumer Packaged Goods industry, the median Shiller PE Ratio is 17.75 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Natural Alternatives International's current Shiller PE Ratio is 5.62, which is 50% below median its own 10-year median of 11.24. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Natural Alternatives International stock overvalued right now?
Based on GuruFocus' analysis, Natural Alternatives International (NAII) is currently considered Possible Value Trap. The stock's GF Value™ is $5.23, compared to a current price of $2.08 — trading 60.2% below its estimated fair value. The current Shiller PE Ratio is 5.62, which is 50% below median its 10-year median of 11.24 and 68.3% below the Consumer Packaged Goods industry median of 17.75. Natural Alternatives International's overall GF Score™ is 48/100 with 6 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 Natural Alternatives International (NAII), the current Shiller PE Ratio is 5.62 as of Sep. 08, 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 Natural Alternatives International (NAII) Overvalued in 2026?
Based on GuruFocus' analysis, Natural Alternatives International stock appears to be undervalued.
The current stock price of $2.08 is trading 60.2% below its estimated GF Value™ of $5.23.
GuruFocus considers Natural Alternatives International to be Possible Value Trap.
Key valuation signals for NAII:
Shiller PE Ratio: 5.62 (50% below median its 10-year median of 11.24)
GF Value™: $5.23 vs. price of $2.08 (60.2% below fair value)
Industry Position: 68.3% below the Consumer Packaged Goods median (#79 of 1127)
No single metric tells the full story. See the NAII stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Natural Alternatives International Inc is engaged in formulating, manufacturing, and marketing nutritional supplements. It offers vitamins, minerals, herbs, and other supplements, as well as other healthcare products, to customers within the United States and internationally. Its business activity is operated through Private-Label Contract Manufacturing and Patent & Trademark Licensing segments. The company derives the majority of revenue from Private-Label Contract Manufacturing, which is engaged in providing manufacturing services to companies that market and distribute nutritional supplements and other healthcare products, whereas the Patent and Trademark Licensing segment includes royalty income from its license and supply agreements associated with the sale.
48GF Score
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