Cia Energetica DE Minas Gerais - Cemig (BSP:CMIG4) Cyclically Adjusted PB Ratio: (As of Aug. 17, 2026)

Author: Vera Yuan Vera Yuan
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Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
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Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

BSP:CMIG4 Cia Energetica DE Minas Gerais - Cemig BSP:CMIG4
71 GF Score
Price R$10.23
GF Value R$11.09
Valuation Fairly Valued
! 5 Warning Signs
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What is Cia Energetica DE Minas Gerais - Cemig Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Cia Energetica DE Minas Gerais - Cemig  (BSP:CMIG4) 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.


Cia Energetica DE Minas Gerais - Cemig Cyclically Adjusted PB Ratio Related Terms


Cia Energetica DE Minas Gerais - Cemig Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Cia Energetica DE Minas Gerais - Cemig'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.

Cia Energetica DE Minas Gerais - Cemig Cyclically Adjusted PB Ratio Chart

Cia Energetica DE Minas Gerais - Cemig 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 1.50 1.67 1.50 1.78 1.69

Cia Energetica DE Minas Gerais - Cemig Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 1.80 1.69 1.69 0.00 0.00

BSP:CMIG4 vs NEE, SO, DUK: Cyclically Adjusted PB Ratio Comparison

For the Utilities - Regulated Electric subindustry, Cia Energetica DE Minas Gerais - Cemig'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.


Cia Energetica DE Minas Gerais - Cemig Cyclically Adjusted PB Ratio vs Utilities - Regulated Industry

For the Utilities - Regulated industry and Utilities sector, Cia Energetica DE Minas Gerais - Cemig's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Cia Energetica DE Minas Gerais - Cemig's Cyclically Adjusted PB Ratio falls into.


BSP:CMIG4
71GF Score
Cia Energetica DE Minas Gerais - Cemig BSP:CMIG4
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Cia Energetica DE Minas Gerais - Cemig 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.

Cia Energetica DE Minas Gerais - Cemig's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 is calculated as:

For example, Cia Energetica DE Minas Gerais - Cemig'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)
=10.201/177.5443*177.5443
=10.201

Current CPI (Jun. 2026) = 177.5443.

Cia Energetica DE Minas Gerais - Cemig Quarterly Data

Book Value per Share CPI Adj_Book
201609 5.611 109.986 9.058
201612 5.091 110.802 8.158
201703 5.232 111.869 8.304
201706 5.263 112.115 8.334
201709 5.230 112.777 8.234
201712 5.008 114.068 7.795
201803 5.151 114.868 7.962
201806 5.147 117.038 7.808
201809 5.233 117.881 7.882
201812 5.147 118.340 7.722
201903 5.375 120.124 7.944
201906 6.114 120.977 8.973
201909 6.015 121.292 8.805
201912 5.628 123.436 8.095
202003 0.000 124.092 0.000
202006 5.898 123.557 8.475
202009 0.000 125.095 0.000
202012 6.108 129.012 8.406
202103 6.255 131.660 8.435
202106 6.936 133.871 9.199
202109 7.083 137.913 9.118
202112 6.799 141.992 8.501
202203 7.224 146.537 8.753
202206 7.118 149.784 8.437
202209 7.367 147.800 8.850
202212 7.613 150.207 8.999
202303 7.967 153.352 9.224
202306 8.253 154.519 9.483
202309 8.539 155.464 9.752
202312 8.617 157.148 9.735
202403 8.884 159.372 9.897
202406 9.324 161.052 10.279
202409 9.809 162.342 10.728
202412 9.570 164.740 10.314
202503 9.758 168.102 10.306
202506 9.953 169.670 10.415
202509 10.042 170.739 10.442
202512 9.989 171.765 10.325
202603 0.000 175.066 0.000
202606 10.201 177.544 10.201

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.

Is Cia Energetica DE Minas Gerais - Cemig (BSP:CMIG4) Overvalued in 2026?

Based on GuruFocus' analysis, Cia Energetica DE Minas Gerais - Cemig stock appears to be undervalued. The current stock price of R$10.23 is trading 7.8% below its estimated GF Value™ of R$11.09. GuruFocus considers Cia Energetica DE Minas Gerais - Cemig to be Fairly Valued.

Key valuation signals for BSP:CMIG4:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: R$11.09 vs. price of R$10.23 (7.8% below fair value)
  • GF Score™: 71/100 with 5 warning signs

No single metric tells the full story. See the BSP:CMIG4 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Cia Energetica DE Minas Gerais - Cemig Business Description

Address Avenida Barbacena, 1200, Belo Horizonte, MG, BRA, 30190-131
Cia Energetica DE Minas Gerais - Cemig is a Brazilian energy company engaged in the generation, transmission, distribution, and commercialization of electricity, as well as natural gas distribution. The company operates through six segments: Generation, Transmission, Trading, Distribution, Gas, and Investees. Its activities include power generation mainly from hydroelectric sources, operation and maintenance of transmission and distribution infrastructure, electricity sales to captive and free-market customers, and gas distribution in Minas Gerais. The company derives a majority of its revenue from the Distribution segment, which comprises the distribution and sale of electricity to captive customers, and the operation and maintenance of infrastructure and related services.
71GF Score

Get the complete analysis for BSP:CMIG4

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

R$10.23
Price
R$11.09
GF Value