Ocean Power Technologies (STU:RUOB) Cyclically Adjusted Book per Share: €6.01 (As of Jan. 2026)

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STU:RUOB Ocean Power Technologies Inc STU:RUOB
42 GF Score
Price €0.17
GF Value €0.13
Valuation Modestly Overvalued
! 8 Warning Signs
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What is Ocean Power Technologies Cyclically Adjusted Book per Share?

Ocean Power Technologies STU:RUOB -2.39% 42 Cyclically Adjusted Book per Share is €6.01 as of Jan. 2026. GuruFocus rates STU:RUOB with a GF Score™ of 42/100 and a GF Value™ of €0.13 (Modestly Overvalued). The stock has 8 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.

Ocean Power Technologies's adjusted book value per share for the three months ended in Jan. 2026 was €0.079. 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 €6.01 for the trailing ten years ended in Jan. 2026.

During the past 12 months, Ocean Power Technologies's average Cyclically Adjusted Book Growth Rate was -67.80% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -49.90% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was -43.00% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was -33.20% 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 Ocean Power Technologies was -14.20% per year. The lowest was -49.90% per year. And the median was -33.85% per year.

As of today (2026-07-18), Ocean Power Technologies's current stock price is €0.1671. Ocean Power Technologies's Cyclically Adjusted Book per Share for the quarter that ended in Jan. 2026 was €6.01. Ocean Power Technologies's Cyclically Adjusted PB Ratio of today is 0.03.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Ocean Power Technologies was 0.21. The lowest was 0.01. And the median was 0.02.


Ocean Power Technologies  (STU:RUOB) 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.

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

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=0.1671/6.01
=0.03

* 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 Ocean Power Technologies was 0.21. The lowest was 0.01. And the median was 0.02.


Be Aware

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


Ocean Power Technologies Cyclically Adjusted Book per Share Related Terms


Ocean Power Technologies Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Ocean Power 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.

Ocean Power Technologies Cyclically Adjusted Book per Share Chart

Ocean Power Technologies Annual Data
Trend Apr16 Apr17 Apr18 Apr19 Apr20 Apr21 Apr22 Apr23 Apr24 Apr25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 171.68 130.35 72.07 42.41 14.12

Ocean Power Technologies Quarterly Data
Apr21 Jul21 Oct21 Jan22 Apr22 Jul22 Oct22 Jan23 Apr23 Jul23 Oct23 Jan24 Apr24 Jul24 Oct24 Jan25 Apr25 Jul25 Oct25 Jan26
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 21.12 14.12 10.77 8.20 6.01

STU:RUOB vs LASE, HYOR, CVV: Cyclically Adjusted Book per Share Comparison

For the Specialty Industrial Machinery subindustry, Ocean Power 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.


Ocean Power Technologies Cyclically Adjusted PB Ratio vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, Ocean Power Technologies's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


STU:RUOB
42GF Score
Ocean Power Technologies Inc STU:RUOB
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

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

Adj_Book= Book Value per Share /CPI of Jan. 2026 (Change)*Current CPI (Jan. 2026)
=0.079/325.2520*325.2520
=0.079

Current CPI (Jan. 2026) = 325.2520.

Ocean Power Technologies Quarterly Data

Book Value per Share CPI Adj_Book
201604 26.564 239.261 36.111
201607 17.040 240.628 23.033
201610 27.743 241.729 37.329
201701 23.399 242.839 31.340
201704 16.236 244.524 21.596
201707 13.925 244.786 18.502
201710 13.981 246.663 18.435
201801 11.990 247.867 15.733
201804 9.087 250.546 11.796
201807 6.601 252.006 8.520
201810 3.296 252.885 4.239
201901 1.249 251.712 1.614
201904 2.589 255.548 3.295
201907 1.983 256.571 2.514
201910 1.498 257.346 1.893
202001 1.013 257.971 1.277
202004 0.746 256.389 0.946
202007 0.473 259.101 0.594
202010 0.480 260.388 0.600
202101 1.270 261.582 1.579
202104 1.282 267.054 1.561
202107 1.254 273.003 1.494
202110 1.195 276.589 1.405
202201 1.164 281.148 1.347
202204 1.141 289.109 1.284
202207 1.113 296.276 1.222
202210 1.067 298.012 1.165
202301 0.874 299.170 0.950
202304 0.712 303.363 0.763
202307 0.594 305.691 0.632
202310 0.510 307.671 0.539
202401 0.390 308.417 0.411
202404 0.294 313.548 0.305
202407 0.215 314.540 0.222
202410 0.163 315.664 0.168
202501 0.164 317.671 0.168
202504 0.139 320.795 0.141
202507 0.117 323.048 0.118
202510 0.101 0.000
202601 0.079 325.252 0.079

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 €6.01 mean?
Ocean Power Technologies (STU:RUOB) has a Cyclically Adjusted Book per Share of €6.01 as of Jan. 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 Ocean Power Technologies and its competitors.
Is Ocean Power Technologies' Cyclically Adjusted Book per Share too high?
Ocean Power Technologies' current Cyclically Adjusted Book per Share is €6.01. Overall, Ocean Power Technologies has a GF Score™ of 42/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Ocean Power Technologies' Cyclically Adjusted Book per Share compare to LASE and HYOR?
Ocean Power Technologies' Cyclically Adjusted Book per Share of €6.01 can be compared against companies in the Industrial Products 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 an Industrial Products company?
A good Cyclically Adjusted Book per Share depends on the Industrial Products 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 Ocean Power Technologies and its competitors. Ocean Power Technologies's current Cyclically Adjusted Book per Share is €6.01. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Ocean Power Technologies stock overvalued right now?
Based on GuruFocus' analysis, Ocean Power Technologies (STU:RUOB) is currently considered Modestly Overvalued. The stock's GF Value™ is €0.13, compared to a current price of €0.17 — trading 28.5% above its estimated fair value. The current Cyclically Adjusted Book per Share is €6.01. Ocean Power Technologies' overall GF Score™ is 42/100 with 8 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 Ocean Power Technologies (STU:RUOB), the current Cyclically Adjusted Book per Share is €6.01 as of Jan. 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 Ocean Power Technologies (STU:RUOB) Overvalued in 2026?

Based on GuruFocus' analysis, Ocean Power Technologies stock appears to be overvalued. The current stock price of €0.17 is trading 28.5% above its estimated GF Value™ of €0.13. GuruFocus considers Ocean Power Technologies to be Modestly Overvalued.

Key valuation signals for STU:RUOB:

  • Cyclically Adjusted Book per Share: €6.01
  • GF Value™: €0.13 vs. price of €0.17 (28.5% above fair value)
  • GF Score™: 42/100 with 8 warning signs

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


Ocean Power Technologies Business Description

Other Exchanges OPTT:USA
Address 28 Engelhard Drive, Suite B, Monroe Township, NJ, USA, 08831
Ocean Power Technologies Inc provides intelligent maritime solutions and services that enable safer, cleaner, and more productive ocean operations for the defense and security, oil and gas, science and research, and offshore wind markets. It provides ocean data collection and reporting, marine power, offshore communications, and Maritime Domain Awareness System (MDAS) products, integrated solutions, and consulting services. The company offers its products and services to a wide range of customers, including those in government and offshore energy, oil and gas, construction, wind power, and other industries. The company has operations in North and South America, Europe, Asia and Australia.
42GF Score

Get the complete analysis for STU:RUOB

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

€0.17
Price
€0.13
GF Value