Kopin (KOPN) Cyclically Adjusted Book per Share: $0.66 (As of Mar. 2026)


KOPN Kopin Corp KOPN
50 GF Score
Price $3.90
GF Value $0.97
Valuation Significantly Overvalued
! 6 Warning Signs
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What is Kopin Cyclically Adjusted Book per Share?

Kopin KOPN -7.58% 50 Cyclically Adjusted Book per Share is $0.66 as of Mar. 2026. GuruFocus rates KOPN with a GF Score™ of 50/100 and a GF Value™ of $0.97 (Significantly Overvalued). The stock has 6 warning signs investors should review.

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. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

Kopin's adjusted book value per share for the three months ended in Mar. 2026 was $0.344. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is $0.66 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Kopin's average Cyclically Adjusted Book Growth Rate was -19.50% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -19.60% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was -16.40% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was -11.40% per year. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the Cyclically Adjusted Book Growth Rate using Cyclically Adjusted Book per Share data.

During the past 13 years, the highest 3-Year average Cyclically Adjusted Book Growth Rate of Kopin was 9.90% per year. The lowest was -19.60% per year. And the median was -1.00% per year.

As of today (2026-07-03), Kopin's current stock price is $3.90. Kopin's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was $0.66. Kopin's Cyclically Adjusted PB Ratio of today is 5.91.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Kopin was 8.67. The lowest was 0.13. And the median was 1.33.


Kopin  (NAS:KOPN) Cyclically Adjusted Book per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted Book per Share may underestimate the company's equity. Cyclically Adjusted PB Ratio can seem to be too high even the actual PB Ratio is low.

For the Cyclically Adjusted PB Ratio, the book value of the past 10 years are inflation-adjusted and averaged. The result is used for P/B calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted PB Ratio is also called CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.

Kopin's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=3.90/0.66
=5.91

* 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.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Kopin was 8.67. The lowest was 0.13. And the median was 1.33.


Be Aware

Cyclically Adjusted PB Ratio works better for cyclical companies. It gives you a better idea on the company's real book value.


Kopin Cyclically Adjusted Book per Share Related Terms


Kopin Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Kopin's Cyclically Adjusted Book per Share 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.

Kopin Cyclically Adjusted Book per Share Chart

Kopin Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 1.49 1.31 1.07 0.86 0.68

Kopin Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Cyclically Adjusted Book per Share Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 0.82 0.77 0.72 0.68 0.66

KOPN vs MEI, LPTH, DAKT: Cyclically Adjusted Book per Share Comparison

For the Electronic Components subindustry, Kopin's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB 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.


Kopin Cyclically Adjusted PB Ratio vs Hardware Industry

For the Hardware industry and Technology sector, Kopin's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Kopin's Cyclically Adjusted PB Ratio falls into.


KOPN
50GF Score
Kopin Corp KOPN
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
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Kopin Cyclically Adjusted Book per Share Calculation

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. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

What is Cyclically Adjusted Book per Share? How do we calculate Cyclically Adjusted Book per Share?

Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the Cyclically Adjusted Book per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the book value per share from 2001 through 2010.

We adjusted the 2001 book value per share data with the total inflation from 2001 through 2010 to the equivalent book value in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart's book value is $1 a share in 2001, then the 2001's equivalent book value in 2010 is $1.4 a share. If Wal-Mart's book value is $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 book value in 2010 is $1.35. So on and so forth, you get the equivalent book value per share of past 10 years. Then you add them together and divided the sum by the count to get Cyclically Adjusted Book per Share.

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.

For example, Kopin's adjusted Book Value per Share data for the three months ended in Mar. 2026 was:

Adj_Book= Book Value per Share /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=0.344/330.2130*330.2130
=0.344

Current CPI (Mar. 2026) = 330.2130.

Kopin Quarterly Data

Book Value per Share CPI Adj_Book
201606 1.357 241.018 1.859
201609 1.262 241.428 1.726
201612 1.148 241.432 1.570
201703 1.063 243.801 1.440
201706 1.195 244.955 1.611
201709 1.088 246.819 1.456
201712 1.051 246.524 1.408
201803 1.050 249.554 1.389
201806 0.937 251.989 1.228
201809 0.819 252.439 1.071
201812 0.647 251.233 0.850
201903 0.550 254.202 0.714
201906 0.512 256.143 0.660
201909 0.436 256.759 0.561
201912 0.347 256.974 0.446
202003 0.304 258.115 0.389
202006 0.293 257.797 0.375
202009 0.284 260.280 0.360
202012 0.333 260.474 0.422
202103 0.477 264.877 0.595
202106 0.448 271.696 0.544
202109 0.481 274.310 0.579
202112 0.442 278.802 0.524
202203 0.431 287.504 0.495
202206 0.387 296.311 0.431
202209 0.328 296.808 0.365
202212 0.260 296.797 0.289
202303 0.390 301.836 0.427
202306 0.326 305.109 0.353
202309 0.311 307.789 0.334
202312 0.263 306.746 0.283
202403 0.043 312.332 0.045
202406 -0.002 314.175 -0.002
202409 0.148 315.301 0.155
202412 0.149 315.605 0.156
202503 0.132 319.799 0.136
202506 0.102 322.561 0.104
202509 0.136 324.800 0.138
202512 0.362 324.054 0.369
202603 0.344 330.213 0.344

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

What does a Cyclically Adjusted Book per Share of $0.66 mean?
Kopin (KOPN) has a Cyclically Adjusted Book per Share of $0.66 as of Mar. 2026. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Kopin and its competitors.
Is Kopin's Cyclically Adjusted Book per Share too high?
Kopin's current Cyclically Adjusted Book per Share is $0.66. Overall, Kopin has a GF Score™ of 50/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Kopin's Cyclically Adjusted Book per Share compare to MEI and LPTH?
Kopin's Cyclically Adjusted Book per Share of $0.66 can be compared against companies in the Hardware industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted Book per Share for a Hardware company?
A good Cyclically Adjusted Book per Share depends on the Hardware industry context. However, Cyclically Adjusted Book per Share should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cyclically Adjusted Book per Share mean?
A high Cyclically Adjusted Book per Share can signal that a stock is expensive relative to its fundamentals. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Kopin and its competitors. Kopin's current Cyclically Adjusted Book per Share is $0.66. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Kopin stock overvalued right now?
Based on GuruFocus' analysis, Kopin (KOPN) is currently considered Significantly Overvalued. The stock's GF Value™ is $0.97, compared to a current price of $3.90 — trading 302.1% above its estimated fair value. The current Cyclically Adjusted Book per Share is $0.66. Kopin's overall GF Score™ is 50/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted Book per Share calculated?
Cyclically Adjusted Book per Share is calculated from a company's financial statements. For Kopin (KOPN), the current Cyclically Adjusted Book per Share is $0.66 as of Mar. 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 Kopin (KOPN) Overvalued in 2026?

Based on GuruFocus' analysis, Kopin stock appears to be overvalued. The current stock price of $3.90 is trading 302.1% above its estimated GF Value™ of $0.97. GuruFocus considers Kopin to be Significantly Overvalued.

Key valuation signals for KOPN:

  • Cyclically Adjusted Book per Share: $0.66
  • GF Value™: $0.97 vs. price of $3.90 (302.1% above fair value)
  • GF Score™: 50/100 with 6 warning signs

No single metric tells the full story. See the KOPN stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Kopin Business Description

Other Exchanges 0JRR:UKKOC:Germany
Address 125 North Drive, Westborough, MA, USA, 01581-3335
Kopin Corp is a developer and provider of inventive display, and application-specific optical solutions sold as critical components and subassemblies for defense, enterprise, professional and consumer products. Its portfolio includes micro displays, display modules, eyepiece assemblies, image projection modules, and vehicle mounted and head-mounted display systems that incorporate ultra-small high-resolution Active Matrix Liquid Crystal displays (AMLCD), Ferroelectric Liquid Crystal on Silicon (FLCoS) displays, MicroLED displays (uLED) and Organic Light Emitting Diode (OLED) displays, a variety of optics, and low-power ASICs. Geographically, it derives a majority of its revenue from the Americas and also has a presence in Asia-Pacific; Europe, and Other Countries.
50GF Score

Get the complete analysis for KOPN

Cyclically Adjusted Book per Share is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$3.90
Price
$0.97
GF Value