Hydro One (TSX:H) Cyclically Adjusted Book per Share: C$20.68 (As of Mar. 2026)


TSX:H Hydro One Ltd TSX:H
79 GF Score
Price C$58.41
GF Value C$50.89
Valuation Modestly Overvalued
! 10 Warning Signs
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What is Hydro One Cyclically Adjusted Book per Share?

Hydro One TSX:H -1.10% 79 Cyclically Adjusted Book per Share is C$20.68 as of Mar. 2026. GuruFocus rates TSX:H with a GF Score™ of 79/100 and a GF Value™ of C$50.89 (Modestly Overvalued). The stock has 10 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.

Hydro One's adjusted book value per share for the three months ended in Mar. 2026 was C$21.411. 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 C$20.68 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Hydro One's average Cyclically Adjusted Book Growth Rate was 3.60% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -89.90% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was -71.80% 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 Hydro One was -12.10% per year. The lowest was -89.90% per year. And the median was -23.85% per year.

As of today (2026-07-09), Hydro One's current stock price is C$58.41. Hydro One's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was C$20.68. Hydro One's Cyclically Adjusted PB Ratio of today is 2.82.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Hydro One was 2.95. The lowest was 0.01. And the median was 2.47.


Hydro One  (TSX:H) 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.

Hydro One's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=58.41/20.68
=2.82

* 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 Hydro One was 2.95. The lowest was 0.01. And the median was 2.47.


Be Aware

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


Hydro One Cyclically Adjusted Book per Share Related Terms


Hydro One Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Hydro One'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.

Hydro One Cyclically Adjusted Book per Share Chart

Hydro One 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 26,115.05 19,856.49 11,695.14 2,494.30 20.37

Hydro One 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 19.97 20.17 20.35 20.37 20.68

TSX:H vs NEE, SO, DUK: Cyclically Adjusted Book per Share Comparison

For the Utilities - Regulated Electric subindustry, Hydro One'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.


Hydro One Cyclically Adjusted PB Ratio vs Utilities - Regulated Industry

For the Utilities - Regulated industry and Utilities sector, Hydro One's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


TSX:H
79GF Score
Hydro One Ltd TSX:H
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Hydro One 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, Hydro One'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)
=21.411/132.2623*132.2623
=21.411

Current CPI (Mar. 2026) = 132.2623.

Hydro One Quarterly Data

Book Value per Share CPI Adj_Book
201606 15.924 102.002 20.648
201609 16.118 101.765 20.948
201612 16.133 101.449 21.033
201703 16.215 102.634 20.896
201706 16.191 103.029 20.785
201709 16.349 103.345 20.924
201712 16.398 103.345 20.986
201803 16.561 105.004 20.860
201806 16.663 105.557 20.879
201809 16.767 105.636 20.993
201812 15.362 105.399 19.277
201903 15.414 106.979 19.057
201906 15.427 107.690 18.947
201909 15.590 107.611 19.161
201912 15.703 107.769 19.272
202003 15.806 107.927 19.370
202006 17.366 108.401 21.189
202009 17.597 108.164 21.517
202012 17.627 108.559 21.476
202103 17.817 110.298 21.365
202106 17.943 111.720 21.242
202109 18.186 112.905 21.304
202112 18.201 113.774 21.159
202203 18.468 117.646 20.763
202206 18.613 120.806 20.378
202209 18.852 120.648 20.667
202212 18.884 120.964 20.648
202303 19.069 122.702 20.555
202306 19.191 124.203 20.436
202309 19.493 125.230 20.588
202312 19.497 125.072 20.618
202403 19.697 126.258 20.634
202406 19.861 127.522 20.599
202409 20.157 127.285 20.945
202412 20.167 127.364 20.943
202503 20.451 129.181 20.939
202506 20.658 129.892 21.035
202509 21.031 130.287 21.350
202512 21.088 130.366 21.395
202603 21.411 132.262 21.411

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 C$20.68 mean?
Hydro One (TSX:H) has a Cyclically Adjusted Book per Share of C$20.68 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 Hydro One and its competitors.
Is Hydro One's Cyclically Adjusted Book per Share too high?
Hydro One's current Cyclically Adjusted Book per Share is C$20.68. Overall, Hydro One has a GF Score™ of 79/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Hydro One's Cyclically Adjusted Book per Share compare to NEE and SO?
Hydro One's Cyclically Adjusted Book per Share of C$20.68 can be compared against companies in the Utilities - Regulated 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 Utilities - Regulated company?
A good Cyclically Adjusted Book per Share depends on the Utilities - Regulated 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 Hydro One and its competitors. Hydro One's current Cyclically Adjusted Book per Share is C$20.68. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Hydro One stock overvalued right now?
Based on GuruFocus' analysis, Hydro One (TSX:H) is currently considered Modestly Overvalued. The stock's GF Value™ is C$50.89, compared to a current price of C$58.41 — trading 14.8% above its estimated fair value. The current Cyclically Adjusted Book per Share is C$20.68. Hydro One's overall GF Score™ is 79/100 with 10 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 Hydro One (TSX:H), the current Cyclically Adjusted Book per Share is C$20.68 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 Hydro One (TSX:H) Overvalued in 2026?

Based on GuruFocus' analysis, Hydro One stock appears to be overvalued. The current stock price of C$58.41 is trading 14.8% above its estimated GF Value™ of C$50.89. GuruFocus considers Hydro One to be Modestly Overvalued.

Key valuation signals for TSX:H:

  • Cyclically Adjusted Book per Share: C$20.68
  • GF Value™: C$50.89 vs. price of C$58.41 (14.8% above fair value)
  • GF Score™: 79/100 with 10 warning signs

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


Hydro One Business Description

Other Exchanges HRNNF:USA8H1:Germany
Address 483 Bay Street, South Tower, 8th Floor, Toronto, ON, CAN, M5G 2P5
Hydro One operates regulated transmission and distribution assets in Ontario. The area's largest electricity provider serves nearly 1.5 million customers. Transmission accounts for roughly 60% of the company's rate base, with distribution accounting for the remainder. Hydro One operates a small telecom business with annual revenue contributing less than 1% to consolidated results. The province of Ontario holds an approximate 47.5% common equity stake.
79GF Score

Get the complete analysis for TSX:H

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

C$58.41
Price
C$50.89
GF Value