Compania deneamento de Minas Gerais - COPASA MG (BSP:CSMG3) Cyclically Adjusted PB Ratio: 2.66 (As of Jul. 22, 2026) — 192% Above Median

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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
View Full Analysis

What is Compania deneamento de Minas Gerais - COPASA MG Cyclically Adjusted PB Ratio?

Compania deneamento de Minas Gerais - COPASA MG BSP:CSMG3 -1.07% 83 Cyclically Adjusted PB Ratio is 2.66 as of Jul. 22, 2026, which is 192% above its 10-year median of 0.91. 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. Among 441 Utilities - Regulated companies, Compania deneamento de Minas Gerais - COPASA MG ranks worse than 80.73% on this metric.

As of today (2026-07-22), Compania deneamento de Minas Gerais - COPASA MG's current share 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 for today is 2.66.

The historical rank and industry rank for Compania deneamento de Minas Gerais - COPASA MG's Cyclically Adjusted PB Ratio or its related term are showing as below:

BSP:CSMG3' s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 0.51   Med: 0.91   Max: 2.84
Current: 2.68

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

BSP:CSMG3's Cyclically Adjusted PB Ratio is ranked worse than
80.73% of 441 companies
in the Utilities - Regulated industry
Industry Median: 1.53 vs BSP:CSMG3: 2.68

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 adjusted book value per share data 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.

Shiller PE for Stocks: The True Measure of Stock Valuation


Compania deneamento de Minas Gerais - COPASA MG  (BSP:CSMG3) Cyclically Adjusted PB Ratio Explanation

Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.


Compania deneamento de Minas Gerais - COPASA MG Cyclically Adjusted PB Ratio Related Terms


Compania deneamento de Minas Gerais - COPASA MG Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Compania deneamento de Minas Gerais - COPASA MG's Cyclically Adjusted PB Ratio 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 PB Ratio Chart

Compania deneamento de Minas Gerais - COPASA MG Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.60 0.72 0.92 0.92 1.88

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 PB Ratio 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 0.85 1.20 1.48 1.88 2.43

BSP:CSMG3 vs AWK, WTRG, AWR: Cyclically Adjusted PB Ratio 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 PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Compania deneamento de Minas Gerais - COPASA MG Cyclically Adjusted PB Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.

Compania deneamento de Minas Gerais - COPASA MG's Cyclically Adjusted PB Ratio for 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.

Compania deneamento de Minas Gerais - COPASA MG's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 is calculated as:

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.

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.

What does a Cyclically Adjusted PB Ratio of 2.66 mean?
Compania deneamento de Minas Gerais - COPASA MG (BSP:CSMG3) has a Cyclically Adjusted PB Ratio of 2.66 as of Jul. 22, 2026. Cyclically Adjusted PB Ratio is the ratio of share price to a 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. This is 192% above median its historical median of 0.91. Over the past decade, Compania deneamento de Minas Gerais - COPASA MG's Cyclically Adjusted PB Ratio has ranged from 0.51 to 2.84. According to the industry distribution chart, Compania deneamento de Minas Gerais - COPASA MG ranks #356 out of 441 companies in the Utilities - Regulated industry, placing it in the top 80.7%.
Is Compania deneamento de Minas Gerais - COPASA MG's Cyclically Adjusted PB Ratio too high?
Compania deneamento de Minas Gerais - COPASA MG's current Cyclically Adjusted PB Ratio of 2.66 is 192% above median its 10-year median of 0.91. Over the past 10 years, this metric has ranged from a low of 0.51 to a high of 2.84. The Utilities - Regulated industry median Cyclically Adjusted PB Ratio is 1.53. Compania deneamento de Minas Gerais - COPASA MG's value of 2.66 is 73.9% above this industry median. Based on the distribution chart, Compania deneamento de Minas Gerais - COPASA MG ranks #356 out of 441 companies in the Utilities - Regulated industry, which is in the bottom quartile relative to peers. 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 PB Ratio compare to AWK and WTRG?
According to the Utilities - Regulated industry distribution chart, Compania deneamento de Minas Gerais - COPASA MG ranks #356 out of 441 companies for Cyclically Adjusted PB Ratio. This places Compania deneamento de Minas Gerais - COPASA MG in the lower half of its industry. The industry median Cyclically Adjusted PB Ratio is 1.53. Compania deneamento de Minas Gerais - COPASA MG's value of 2.66 is 73.9% above this benchmark. Historically, Compania deneamento de Minas Gerais - COPASA MG's own Cyclically Adjusted PB Ratio has ranged from 0.51 to 2.84 over the past decade. While the company's 10-year median is 0.91 vs. the industry median of 1.53, Compania deneamento de Minas Gerais - COPASA MG has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted PB Ratio for an Utilities - Regulated company?
The median Cyclically Adjusted PB Ratio among Utilities - Regulated companies is 1.53, based on 441 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Compania deneamento de Minas Gerais - COPASA MG's current Cyclically Adjusted PB Ratio of 2.66 is 73.9% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cyclically Adjusted PB Ratio mean?
A high Cyclically Adjusted PB Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PB Ratio is the ratio of share price to a 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. For the Utilities - Regulated industry, the median Cyclically Adjusted PB Ratio is 1.53 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Compania deneamento de Minas Gerais - COPASA MG's current Cyclically Adjusted PB Ratio is 2.66, which is 192% above median its own 10-year median of 0.91. 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 PB Ratio is 2.66, which is 192% above median its 10-year median of 0.91 and 73.9% above the Utilities - Regulated industry median of 1.53. 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 PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For Compania deneamento de Minas Gerais - COPASA MG (BSP:CSMG3), the current Cyclically Adjusted PB Ratio is 2.66 as of Jul. 22, 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 PB Ratio: 2.66 (192% above median its 10-year median of 0.91)
  • GF Value™: R$25.12 vs. price of R$63.16 (151.4% above fair value)
  • GF Score™: 83/100 with 9 warning signs
  • Industry Position: 73.9% above the Utilities - Regulated median (#356 of 441)

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 PB Ratio 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