Cia Energetica DE Minas Gerais - Cemig (MEX:CIGN) Cyclically Adjusted PB Ratio: (As of Jul. 30, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
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.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
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.

MEX:CIGN Cia Energetica DE Minas Gerais - Cemig MEX:CIGN
57 GF Score
Price MXN38.00
GF Value MXN8,476.90
Valuation Significantly Undervalued
! 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  (MEX:CIGN) 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
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 1.76 1.80 1.69 1.69 0.00

MEX:CIGN 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.


MEX:CIGN
57GF Score
Cia Energetica DE Minas Gerais - Cemig MEX:CIGN
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 Mar. 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 Mar. 2026 was:

Adj_Book=Book Value per Share/CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=0/175.0655*175.0655
=0.000

Current CPI (Mar. 2026) = 175.0655.

Cia Energetica DE Minas Gerais - Cemig Quarterly Data

Book Value per Share CPI Adj_Book
201606 29.338 108.851 47.185
201609 33.350 109.986 53.083
201612 31.293 110.802 49.442
201703 31.500 111.869 49.295
201706 28.868 112.115 45.077
201709 30.298 112.777 47.032
201712 29.849 114.068 45.811
201803 28.539 114.868 43.495
201806 26.820 117.038 40.118
201809 23.821 117.881 35.377
201812 26.024 118.340 38.498
201903 27.147 120.124 39.563
201906 30.459 120.977 44.077
201909 28.826 121.292 41.606
201912 25.859 123.436 36.675
202003 0.000 124.092 0.000
202006 26.239 123.557 37.177
202009 0.000 125.095 0.000
202012 23.618 129.012 32.049
202103 22.691 131.660 30.172
202106 27.456 133.871 35.905
202109 27.589 137.913 35.021
202112 24.664 141.992 30.409
202203 0.000 146.537 0.000
202206 28.371 149.784 33.160
202209 28.260 147.800 33.473
202212 28.295 150.207 32.978
202303 27.571 153.352 31.475
202306 29.150 154.519 33.026
202309 30.117 155.464 33.914
202312 29.851 157.148 33.254
202403 29.609 159.372 32.525
202406 31.716 161.052 34.476
202409 34.875 162.342 37.608
202412 32.714 164.740 34.764
202503 34.670 168.102 36.106
202506 33.794 169.670 34.869
202509 34.350 170.739 35.220
202512 32.968 171.765 33.601
202603 0.000 175.066 0.000

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 (MEX:CIGN) Overvalued in 2026?

Based on GuruFocus' analysis, Cia Energetica DE Minas Gerais - Cemig stock appears to be undervalued. The current stock price of MXN38.00 is trading 99.6% below its estimated GF Value™ of MXN8,476.90. GuruFocus considers Cia Energetica DE Minas Gerais - Cemig to be Significantly Undervalued.

Key valuation signals for MEX:CIGN:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: MXN8,476.90 vs. price of MXN38.00 (99.6% below fair value)
  • GF Score™: 57/100 with 5 warning signs

No single metric tells the full story. See the MEX:CIGN 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.
57GF Score

Get the complete analysis for MEX:CIGN

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

MXN38.00
Price
MXN8,476.90
GF Value