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As of today (2026-08-30), OPT Sciences's current share price is $25.50. OPT Sciences's E10 for the quarter that ended in Jul. 2015 was $1.10. OPT Sciences's Shiller PE Ratio for today is 23.18.
The historical rank and industry rank for OPT Sciences's Shiller PE Ratio or its related term are showing as below:
OPST's Shiller PE Ratio is not ranked *
in the Aerospace & Defense industry.
Industry Median: 57.855 * Ranked among companies with meaningful Shiller PE Ratio only.
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.
OPT Sciences's adjusted earnings per share data for the three months ended in Jul. 2015 was $0.550. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $1.10 for the trailing ten years ended in Jul. 2015.
Shiller PE for Stocks: The True Measure of Stock Valuation
OPT Sciences (OTCPK:OPST) 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.
OPT Sciences Shiller PE Ratio Related Terms
OPT Sciences Shiller PE Ratio Historical Data
* Premium members only.
The historical data trend for OPT Sciences'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.
OPST vs SDEV, SIF, OPXS: Shiller PE Ratio Comparison
For the Aerospace & Defense subindustry, OPT Sciences'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.
OPT Sciences Shiller PE Ratio vs Aerospace & Defense Industry
For the Aerospace & Defense industry and Industrials sector, OPT Sciences's Shiller PE Ratio distribution charts can be found below:
* The bar in red indicates where OPT Sciences'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.
OPT Sciences'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.
OPT Sciences's E10 for the quarter that ended in Jul. 2015 is calculated as:
For example, OPT Sciences's adjusted earnings per share data for the three months ended in Jul. 2015 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.
OPT Sciences (OPST) has a Shiller PE Ratio of 23.18 as of Aug. 30, 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 OPT Sciences and its competitors.
Is OPT Sciences' Shiller PE Ratio too high?
OPT Sciences' current Shiller PE Ratio is 23.18. The Aerospace & Defense industry median Shiller PE Ratio is 57.86. OPT Sciences' value of 23.18 is 59.9% below this industry median.
How does OPT Sciences' Shiller PE Ratio compare to SDEV and SIF?
OPT Sciences' Shiller PE Ratio of 23.18 can be compared against companies in the Aerospace & Defense industry. The industry median Shiller PE Ratio is 57.86. OPT Sciences' value of 23.18 is 59.9% below this benchmark. 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 Aerospace & Defense company?
The median Shiller PE Ratio among Aerospace & Defense companies is 57.86, based on 160 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. OPT Sciences's current Shiller PE Ratio of 23.18 is 59.9% 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 OPT Sciences and its competitors. For the Aerospace & Defense industry, the median Shiller PE Ratio is 57.86 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. OPT Sciences's current Shiller PE Ratio is 23.18. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is OPT Sciences stock overvalued right now?
OPT Sciences (OPST) has a current Shiller PE Ratio of 23.18. The current Shiller PE Ratio is 23.18 and 59.9% below the Aerospace & Defense industry median of 57.86. 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 OPT Sciences (OPST), the current Shiller PE Ratio is 23.18 as of Aug. 30, 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.
OPT Sciences Corp through its operating subsidiary O & S Research, manufactures precision optical components for the Aerospace Industry. It provides anti-glare optical coatings, panels for liquid crystal displays ("LCD"), LCD glass heaters, and electromagnetic interference shielding glass. In addition, it also offers glass cutting, grinding, and painting services. Geographically, the activities are performed in the United States and it derives revenue from product sales when products are shipped to customers.
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