POWI (Power Integrations) Cyclically Adjusted Book per Share: $14.12 (As of Jun. 2026)

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POWI Power Integrations Inc POWI
80 GF Score
Price $49.06
GF Value $70.03
Valuation Significantly Undervalued
! 6 Warning Signs
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What is Power Integrations Cyclically Adjusted Book per Share?

Power Integrations POWI +2.87% 80 Cyclically Adjusted Book per Share is $14.12 as of Jun. 2026. GuruFocus rates POWI with a GF Score™ of 80/100 and a GF Value™ of $70.03 (Significantly Undervalued). 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.

Power Integrations's adjusted book value per share for the three months ended in Jun. 2026 was $12.200. 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 $14.12 for the trailing ten years ended in Jun. 2026.

During the past 12 months, Power Integrations's average Cyclically Adjusted Book Growth Rate was 4.90% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 5.80% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 8.50% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was 8.80% 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 Power Integrations was 14.90% per year. The lowest was 5.80% per year. And the median was 8.80% per year.

As of today (2026-09-17), Power Integrations's current stock price is $49.06. Power Integrations's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was $14.12. Power Integrations's Cyclically Adjusted PB Ratio of today is 3.48.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Power Integrations was 11.35. The lowest was 2.44. And the median was 5.47.


Power Integrations  (NAS:POWI) 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.

Power Integrations's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=49.06/14.117
=3.48

* 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 Power Integrations was 11.35. The lowest was 2.44. And the median was 5.47.


Be Aware

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


Power Integrations Cyclically Adjusted Book per Share Related Terms


Power Integrations Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Power Integrations'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.

Power Integrations Cyclically Adjusted Book per Share Chart

Power Integrations 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 10.70 11.95 12.72 13.41 13.96

Power Integrations 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 13.45 13.60 13.62 13.92 14.12

POWI vs NVTS, LASR, HIMX: Cyclically Adjusted Book per Share Comparison

For the Semiconductors subindustry, Power Integrations'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.


Power Integrations Cyclically Adjusted PB Ratio vs Semiconductors Industry

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

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


POWI
80GF Score
Power Integrations Inc POWI
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Power Integrations 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, Power Integrations'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)
=12.2/333.9520*333.9520
=12.200

Current CPI (Jun. 2026) = 333.9520.

Power Integrations Quarterly Data

Book Value per Share CPI Adj_Book
201609 8.048 241.428 11.132
201612 0.000 241.432 0.000
201703 8.927 243.801 12.228
201706 9.191 244.955 12.530
201709 9.460 246.819 12.800
201712 9.195 246.524 12.456
201803 9.010 249.554 12.057
201806 8.872 251.989 11.758
201809 9.055 252.439 11.979
201812 9.122 251.233 12.125
201903 9.126 254.202 11.989
201906 9.271 256.143 12.087
201909 9.608 256.759 12.497
201912 12.309 256.974 15.996
202003 12.526 258.115 16.206
202006 12.710 257.797 16.465
202009 13.028 260.280 16.716
202012 13.527 260.474 17.343
202103 14.145 264.877 17.834
202106 14.423 271.696 17.728
202109 15.057 274.310 18.331
202112 15.223 278.802 18.234
202203 13.961 287.504 16.216
202206 12.431 296.311 14.010
202209 13.118 296.808 14.760
202212 13.258 296.797 14.918
202303 13.326 301.836 14.744
202306 13.390 305.109 14.656
202309 13.680 307.789 14.843
202312 13.258 306.746 14.434
202403 13.005 312.332 13.905
202406 12.870 314.175 13.680
202409 13.181 315.301 13.961
202412 13.192 315.605 13.959
202503 12.979 319.799 13.553
202506 12.532 322.561 12.975
202509 12.149 324.800 12.491
202512 12.159 324.054 12.530
202603 12.083 330.213 12.220
202606 12.200 333.952 12.200

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 $14.12 mean?
Power Integrations (POWI) has a Cyclically Adjusted Book per Share of $14.12 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 Power Integrations and its competitors.
Is Power Integrations' Cyclically Adjusted Book per Share too high?
Power Integrations' current Cyclically Adjusted Book per Share is $14.12. Overall, Power Integrations has a GF Score™ of 80/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Power Integrations' Cyclically Adjusted Book per Share compare to NVTS and LASR?
Power Integrations' Cyclically Adjusted Book per Share of $14.12 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 Power Integrations and its competitors. Power Integrations's current Cyclically Adjusted Book per Share is $14.12. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Power Integrations stock overvalued right now?
Based on GuruFocus' analysis, Power Integrations (POWI) is currently considered Significantly Undervalued. The stock's GF Value™ is $70.03, compared to a current price of $49.06 — trading 29.9% below its estimated fair value. The current Cyclically Adjusted Book per Share is $14.12. Power Integrations' overall GF Score™ is 80/100 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 Power Integrations (POWI), the current Cyclically Adjusted Book per Share is $14.12 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 Power Integrations (POWI) Overvalued in 2026?

Based on GuruFocus' analysis, Power Integrations stock appears to be undervalued. The current stock price of $49.06 is trading 29.9% below its estimated GF Value™ of $70.03. GuruFocus considers Power Integrations to be Significantly Undervalued.

Key valuation signals for POWI:

  • Cyclically Adjusted Book per Share: $14.12
  • GF Value™: $70.03 vs. price of $49.06 (29.9% below fair value)
  • GF Score™: 80/100 with 6 warning signs

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


Power Integrations Business Description

Other Exchanges PWI:Germany
Address 5245 Hellyer Avenue, San Jose, CA, USA, 95138-1002
Power Integrations Inc designs, develops, and markets analog and mixed-signal integrated circuits (ICs) and other electronic components and circuitry used in high-voltage power conversion. Products are used in power converters that convert electricity from a high-voltage source to the type of power required for a specified downstream use. Products are used in electronic products including mobile phones, computing and networking equipment, appliances, electronic utility meters, battery-powered tools, industrial controls, home automation, or Internet of Things applications such as networked thermostats, power strips, and security devices. Geographically, the company generates maximum revenue from China and Hong Kong.
80GF Score

Get the complete analysis for POWI

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

$49.06
Price
$70.03
GF Value