Compania deneamento de Minas Gerais - COPASA MG (BSP:CSMG3) Cyclically Adjusted Book per Share: R$23.73 (As of Mar. 2026)

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BSP:CSMG3 Compania de Saneamento de Minas Gerais - COPASA MG BSP:CSMG3
83 GF Score
Price R$63.16
GF Value R$25.12
Valuation Significantly Overvalued
! 9 Warning Signs
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What is Compania deneamento de Minas Gerais - COPASA MG Cyclically Adjusted Book per Share?

Compania deneamento de Minas Gerais - COPASA MG BSP:CSMG3 -1.07% 83 Cyclically Adjusted Book per Share is R$23.73 as of Mar. 2026. GuruFocus rates BSP:CSMG3 with a GF Score™ of 83/100 and a GF Value™ of R$25.12 (Significantly Overvalued). The stock has 9 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.

Compania deneamento de Minas Gerais - COPASA MG's adjusted book value per share for the three months ended in Mar. 2026 was R$23.126. 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 R$23.73 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Compania deneamento de Minas Gerais - COPASA MG's average Cyclically Adjusted Book Growth Rate was 2.70% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 2.30% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 3.30% 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 Compania deneamento de Minas Gerais - COPASA MG was 5.00% per year. The lowest was 2.30% per year. And the median was 4.40% per year.

As of today (2026-07-22), Compania deneamento de Minas Gerais - COPASA MG's current stock price is R$63.16. Compania deneamento de Minas Gerais - COPASA MG's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was R$23.73. Compania deneamento de Minas Gerais - COPASA MG's Cyclically Adjusted PB Ratio of today is 2.66.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Compania deneamento de Minas Gerais - COPASA MG was 2.84. The lowest was 0.51. And the median was 0.91.


Compania deneamento de Minas Gerais - COPASA MG  (BSP:CSMG3) 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.

Compania deneamento de Minas Gerais - COPASA MG's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=63.16/23.73
=2.66

* 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 Compania deneamento de Minas Gerais - COPASA MG was 2.84. The lowest was 0.51. And the median was 0.91.


Be Aware

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


Compania deneamento de Minas Gerais - COPASA MG Cyclically Adjusted Book per Share Related Terms


Compania deneamento de Minas Gerais - COPASA MG Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Compania deneamento de Minas Gerais - COPASA MG'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.

Compania deneamento de Minas Gerais - COPASA MG Cyclically Adjusted Book per Share Chart

Compania deneamento de Minas Gerais - COPASA MG 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 21.07 21.78 22.26 22.74 23.34

Compania deneamento de Minas Gerais - COPASA MG 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 23.10 23.22 23.28 23.34 23.73

BSP:CSMG3 vs AWK, WTRG, AWR: Cyclically Adjusted Book per Share Comparison

For the Utilities - Regulated Water subindustry, Compania deneamento de Minas Gerais - COPASA MG'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.


Compania deneamento de Minas Gerais - COPASA MG Cyclically Adjusted PB Ratio vs Utilities - Regulated Industry

For the Utilities - Regulated industry and Utilities sector, Compania deneamento de Minas Gerais - COPASA MG's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Compania deneamento de Minas Gerais - COPASA MG's Cyclically Adjusted PB Ratio falls into.


BSP:CSMG3
83GF Score
Compania de Saneamento de Minas Gerais - COPASA MG BSP:CSMG3
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
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Compania deneamento de Minas Gerais - COPASA MG 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, Compania deneamento de Minas Gerais - COPASA MG'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)
=23.126/175.0655*175.0655
=23.126

Current CPI (Mar. 2026) = 175.0655.

Compania deneamento de Minas Gerais - COPASA MG Quarterly Data

Book Value per Share CPI Adj_Book
201606 16.142 108.851 25.961
201609 15.469 109.986 24.622
201612 15.664 110.802 24.749
201703 15.962 111.869 24.979
201706 16.171 112.115 25.251
201709 16.452 112.777 25.539
201712 16.468 114.068 25.274
201803 16.684 114.868 25.427
201806 16.113 117.038 24.102
201809 16.301 117.881 24.209
201812 16.375 118.340 24.224
201903 16.774 120.124 24.446
201906 17.058 120.977 24.685
201909 17.430 121.292 25.157
201912 17.785 123.436 25.224
202003 18.089 124.092 25.520
202006 18.377 123.557 26.038
202009 18.845 125.095 26.373
202012 17.028 129.012 23.106
202103 17.436 131.660 23.184
202106 17.934 133.871 23.453
202109 17.548 137.913 22.275
202112 17.828 141.992 21.981
202203 18.180 146.537 21.719
202206 18.516 149.784 21.641
202209 18.965 147.800 22.464
202212 19.132 150.207 22.298
202303 19.676 153.352 22.462
202306 19.994 154.519 22.653
202309 20.811 155.464 23.435
202312 19.974 157.148 22.251
202403 20.447 159.372 22.460
202406 20.128 161.052 21.879
202409 20.746 162.342 22.372
202412 21.225 164.740 22.555
202503 21.879 168.102 22.785
202506 22.209 169.670 22.915
202509 22.713 170.739 23.289
202512 22.623 171.765 23.058
202603 23.126 175.066 23.126

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 R$23.73 mean?
Compania deneamento de Minas Gerais - COPASA MG (BSP:CSMG3) has a Cyclically Adjusted Book per Share of R$23.73 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 Compania deneamento de Minas Gerais - COPASA MG and its competitors.
Is Compania deneamento de Minas Gerais - COPASA MG's Cyclically Adjusted Book per Share too high?
Compania deneamento de Minas Gerais - COPASA MG's current Cyclically Adjusted Book per Share is R$23.73. Overall, Compania deneamento de Minas Gerais - COPASA MG has a GF Score™ of 83/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Compania deneamento de Minas Gerais - COPASA MG's Cyclically Adjusted Book per Share compare to AWK and WTRG?
Compania deneamento de Minas Gerais - COPASA MG's Cyclically Adjusted Book per Share of R$23.73 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 Compania deneamento de Minas Gerais - COPASA MG and its competitors. Compania deneamento de Minas Gerais - COPASA MG's current Cyclically Adjusted Book per Share is R$23.73. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Compania deneamento de Minas Gerais - COPASA MG stock overvalued right now?
Based on GuruFocus' analysis, Compania deneamento de Minas Gerais - COPASA MG (BSP:CSMG3) is currently considered Significantly Overvalued. The stock's GF Value™ is R$25.12, compared to a current price of R$63.16 — trading 151.4% above its estimated fair value. The current Cyclically Adjusted Book per Share is R$23.73. Compania deneamento de Minas Gerais - COPASA MG's overall GF Score™ is 83/100 with 9 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 Compania deneamento de Minas Gerais - COPASA MG (BSP:CSMG3), the current Cyclically Adjusted Book per Share is R$23.73 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 Compania deneamento de Minas Gerais - COPASA MG (BSP:CSMG3) Overvalued in 2026?

Based on GuruFocus' analysis, Compania deneamento de Minas Gerais - COPASA MG stock appears to be overvalued. The current stock price of R$63.16 is trading 151.4% above its estimated GF Value™ of R$25.12. GuruFocus considers Compania deneamento de Minas Gerais - COPASA MG to be Significantly Overvalued.

Key valuation signals for BSP:CSMG3:

  • Cyclically Adjusted Book per Share: R$23.73
  • GF Value™: R$25.12 vs. price of R$63.16 (151.4% above fair value)
  • GF Score™: 83/100 with 9 warning signs

No single metric tells the full story. See the BSP:CSMG3 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Compania deneamento de Minas Gerais - COPASA MG Business Description

Address Rua Mar de Espanha 525, Santo Antonio, Belo Horizonte, MG, BRA, 30330900
Compania de Saneamento de Minas Gerais - COPASA MG provides water supply, sewage, and solid waste services. The company operates out of subsidiaries COPASA Servicos de Irrigacao S.A., COPASA Aguas Minerais de Minas S.A, and COPANOR. COPASA Servicos de Irrigacao S.A. manages, performs, and sells irrigation system services. COPASA Aguas Minerais de Minas S.A. produces, bottles, distributes, and sells mineral water. COPANOR provides water supply and sewage treatment services across the North and Northeast regions of the State of Minas Gerais. A majority of revenue is derived from water services while the rest is derived from sewage services. The company operates out of Brazil, where an amount of revenue is generated.
83GF Score

Get the complete analysis for BSP:CSMG3

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

R$63.16
Price
R$25.12
GF Value