POET Technologies (FRA:RI4A) Cyclically Adjusted Book per Share: €0.79 (As of Jun. 2026)

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FRA:RI4A POET Technologies Inc FRA:RI4A
55 GF Score
Price €8.22
GF Value €9.36
Valuation Modestly Undervalued
! 3 Warning Signs
View Full Analysis

What is POET Technologies Cyclically Adjusted Book per Share?

POET Technologies FRA:RI4A +6.89% 55 Cyclically Adjusted Book per Share is €0.79 as of Jun. 2026. GuruFocus rates FRA:RI4A with a GF Score™ of 55/100 and a GF Value™ of €9.36 (Modestly Undervalued). The stock has 3 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.

POET Technologies's adjusted book value per share for the three months ended in Jun. 2026 was €4.262. 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 €0.79 for the trailing ten years ended in Jun. 2026.

During the past 12 months, POET Technologies's average Cyclically Adjusted Book Growth Rate was 19.70% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -3.30% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was -0.20% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was -9.50% 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 POET Technologies was 2.10% per year. The lowest was -22.70% per year. And the median was -4.70% per year.

As of today (2026-08-17), POET Technologies's current stock price is €8.22. POET Technologies's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was €0.79. POET Technologies's Cyclically Adjusted PB Ratio of today is 10.41.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of POET Technologies was 19.48. The lowest was 0.86. And the median was 3.30.


POET Technologies  (FRA:RI4A) 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.

POET Technologies's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=8.22/0.79
=10.41

* 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 POET Technologies was 19.48. The lowest was 0.86. And the median was 3.30.


Be Aware

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


POET Technologies Cyclically Adjusted Book per Share Related Terms


POET Technologies Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for POET Technologies'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.

POET Technologies Cyclically Adjusted Book per Share Chart

POET Technologies 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 0.65 0.78 0.75 0.89 0.68

POET Technologies Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 0.64 0.63 0.68 0.70 0.79

FRA:RI4A vs WOLF, CEVA, AIP: Cyclically Adjusted Book per Share Comparison

For the Semiconductors subindustry, POET Technologies'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.


POET Technologies Cyclically Adjusted PB Ratio vs Semiconductors Industry

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

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


FRA:RI4A
55GF Score
POET Technologies Inc FRA:RI4A
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

POET Technologies 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, POET Technologies's adjusted Book Value per Share data for the three months ended in Jun. 2026 was:

Adj_Book= Book Value per Share /CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=4.262/133.5265*133.5265
=4.262

Current CPI (Jun. 2026) = 133.5265.

POET Technologies Quarterly Data

Book Value per Share CPI Adj_Book
201609 1.087 101.765 1.426
201612 1.179 101.449 1.552
201703 1.072 102.634 1.395
201706 0.937 103.029 1.214
201709 0.802 103.345 1.036
201712 0.750 103.345 0.969
201803 0.888 105.004 1.129
201806 0.818 105.557 1.035
201809 0.708 105.636 0.895
201812 0.644 105.399 0.816
201903 0.594 106.979 0.741
201906 0.523 107.690 0.648
201909 0.467 107.611 0.579
201912 0.594 107.769 0.736
202003 0.526 107.927 0.651
202006 0.353 108.401 0.435
202009 0.272 108.164 0.336
202012 0.157 108.559 0.193
202103 0.590 110.298 0.714
202106 0.561 111.720 0.671
202109 0.556 112.905 0.658
202112 0.606 113.774 0.711
202203 0.521 117.646 0.591
202206 0.429 120.806 0.474
202209 0.355 120.648 0.393
202212 0.286 120.964 0.316
202303 0.321 122.702 0.349
202306 0.266 124.203 0.286
202309 0.203 125.230 0.216
202312 0.106 125.072 0.113
202403 0.102 126.258 0.108
202406 0.374 127.522 0.392
202409 0.393 127.285 0.412
202412 0.258 127.364 0.270
202503 0.385 129.181 0.398
202506 0.502 129.892 0.516
202509 0.622 130.287 0.637
202512 1.189 130.366 1.218
202603 2.538 132.262 2.562
202606 4.262 133.527 4.262

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 €0.79 mean?
POET Technologies (FRA:RI4A) has a Cyclically Adjusted Book per Share of €0.79 as of Jun. 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 POET Technologies and its competitors.
Is POET Technologies' Cyclically Adjusted Book per Share too high?
POET Technologies' current Cyclically Adjusted Book per Share is €0.79. Overall, POET Technologies has a GF Score™ of 55/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does POET Technologies' Cyclically Adjusted Book per Share compare to WOLF and CEVA?
POET Technologies' Cyclically Adjusted Book per Share of €0.79 can be compared against companies in the Semiconductors 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 Semiconductors company?
A good Cyclically Adjusted Book per Share depends on the Semiconductors 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 POET Technologies and its competitors. POET Technologies's current Cyclically Adjusted Book per Share is €0.79. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is POET Technologies stock overvalued right now?
Based on GuruFocus' analysis, POET Technologies (FRA:RI4A) is currently considered Modestly Undervalued. The stock's GF Value™ is €9.36, compared to a current price of €8.22 — trading 12.2% below its estimated fair value. The current Cyclically Adjusted Book per Share is €0.79. POET Technologies' overall GF Score™ is 55/100 with 3 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 POET Technologies (FRA:RI4A), the current Cyclically Adjusted Book per Share is €0.79 as of Jun. 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 POET Technologies (FRA:RI4A) Overvalued in 2026?

Based on GuruFocus' analysis, POET Technologies stock appears to be undervalued. The current stock price of €8.22 is trading 12.2% below its estimated GF Value™ of €9.36. GuruFocus considers POET Technologies to be Modestly Undervalued.

Key valuation signals for FRA:RI4A:

  • Cyclically Adjusted Book per Share: €0.79
  • GF Value™: €9.36 vs. price of €8.22 (12.2% below fair value)
  • GF Score™: 55/100 with 3 warning signs

No single metric tells the full story. See the FRA:RI4A stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


POET Technologies Business Description

Other Exchanges POET:USARI4A:Germany
Address 120 Eglinton Avenue East, Suite 1107, Toronto, ON, CAN, M4P 1E2
POET Technologies Inc is a design and development company offering high-speed optical engines, light source products, and custom optical modules to the artificial intelligence systems market and hyperscale data centers. Its integration solutions are based on the POET Optical Interposer, a novel, patented platform that allows the seamless integration of electronic and photonic devices into a single chip using wafer-level semiconductor manufacturing techniques. POET's Optical Interposer platform also solves device integration challenges across a broad range of communication, computing, and sensing applications. The company operates geographically in the United States, Canada, Singapore and China.
55GF Score

Get the complete analysis for FRA:RI4A

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

€8.22
Price
€9.36
GF Value