TBNGY (PT Bukit Asam (Persero) Tbk) Cyclically Adjusted Book per Share: $2.72 (As of Mar. 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.

TBNGY PT Bukit Asam (Persero) Tbk TBNGY
77 GF Score
Price $3.80
GF Value $4.02
Valuation Fairly Valued
! 6 Warning Signs
View Full Analysis

What is PT Bukit Asam (Persero) Tbk Cyclically Adjusted Book per Share?

PT Bukit Asam (Persero) Tbk TBNGY 77 Cyclically Adjusted Book per Share is $2.72 as of Mar. 2026. GuruFocus rates TBNGY with a GF Score™ of 77/100 and a GF Value™ of $4.02 (Fairly Valued). The stock has 6 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.

PT Bukit Asam (Persero) Tbk's adjusted book value per share for the three months ended in Mar. 2026 was $3.018. 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 $2.72 for the trailing ten years ended in Mar. 2026.

During the past 12 months, PT Bukit Asam (Persero) Tbk's average Cyclically Adjusted Book Growth Rate was 7.80% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 8.00% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 9.60% 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 PT Bukit Asam (Persero) Tbk was 10.80% per year. The lowest was 8.00% per year. And the median was 10.40% per year.

As of today (2026-07-27), PT Bukit Asam (Persero) Tbk's current stock price is $3.80. PT Bukit Asam (Persero) Tbk's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was $2.72. PT Bukit Asam (Persero) Tbk's Cyclically Adjusted PB Ratio of today is 1.40.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of PT Bukit Asam (Persero) Tbk was 4.76. The lowest was 1.24. And the median was 1.88.


PT Bukit Asam (Persero) Tbk  (OTCPK:TBNGY) 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.

PT Bukit Asam (Persero) Tbk's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=3.80/2.72
=1.40

* 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 PT Bukit Asam (Persero) Tbk was 4.76. The lowest was 1.24. And the median was 1.88.


Be Aware

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


PT Bukit Asam (Persero) Tbk Cyclically Adjusted Book per Share Related Terms


PT Bukit Asam (Persero) Tbk Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for PT Bukit Asam (Persero) Tbk'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.

PT Bukit Asam (Persero) Tbk Cyclically Adjusted Book per Share Chart

PT Bukit Asam (Persero) Tbk 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 2.19 2.34 2.84 2.62 2.76

PT Bukit Asam (Persero) Tbk 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 2.74 2.86 2.51 2.76 2.72

PT Bukit Asam (Persero) Tbk Cyclically Adjusted Book per Share Competitor Comparison

For the Thermal Coal subindustry, PT Bukit Asam (Persero) Tbk'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.


PT Bukit Asam (Persero) Tbk Cyclically Adjusted PB Ratio vs Other Energy Sources Industry

For the Other Energy Sources industry and Energy sector, PT Bukit Asam (Persero) Tbk's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where PT Bukit Asam (Persero) Tbk's Cyclically Adjusted PB Ratio falls into.


TBNGY
77GF Score
PT Bukit Asam (Persero) Tbk TBNGY
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

PT Bukit Asam (Persero) Tbk 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, PT Bukit Asam (Persero) Tbk'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)
=3.018/136.5387*136.5387
=3.018

Current CPI (Mar. 2026) = 136.5387.

PT Bukit Asam (Persero) Tbk Quarterly Data

Book Value per Share CPI Adj_Book
201606 1.614 103.212 2.135
201609 1.713 104.142 2.246
201612 1.842 105.222 2.390
201703 1.986 106.476 2.547
201706 2.109 107.722 2.673
201709 2.271 108.020 2.871
201712 2.381 109.017 2.982
201803 2.571 110.097 3.188
201806 2.156 111.085 2.650
201809 2.345 111.135 2.881
201812 2.621 112.430 3.183
201903 2.887 112.829 3.494
201906 2.535 114.730 3.017
201909 2.735 114.905 3.250
201912 2.911 115.486 3.442
202003 2.894 116.252 3.399
202006 2.482 116.630 2.906
202009 2.471 116.397 2.899
202012 2.644 117.318 3.077
202103 2.695 117.840 3.123
202106 2.700 118.184 3.119
202109 3.172 118.262 3.662
202112 3.654 119.516 4.174
202203 3.989 120.948 4.503
202206 3.328 123.322 3.685
202209 3.798 125.298 4.139
202212 4.001 126.098 4.332
202303 4.190 126.953 4.506
202306 2.663 127.663 2.848
202309 2.726 128.151 2.904
202312 3.007 129.395 3.173
202403 3.096 130.607 3.237
202406 2.586 130.792 2.700
202409 2.866 130.361 3.002
202412 3.047 131.432 3.165
202503 3.023 131.948 3.128
202506 2.615 133.241 2.680
202509 2.718 133.819 2.773
202512 2.922 135.271 2.949
202603 3.018 136.539 3.018

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 $2.72 mean?
PT Bukit Asam (Persero) Tbk (TBNGY) has a Cyclically Adjusted Book per Share of $2.72 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 PT Bukit Asam (Persero) Tbk and its competitors.
Is PT Bukit Asam (Persero) Tbk's Cyclically Adjusted Book per Share too high?
PT Bukit Asam (Persero) Tbk's current Cyclically Adjusted Book per Share is $2.72. Overall, PT Bukit Asam (Persero) Tbk has a GF Score™ of 77/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does PT Bukit Asam (Persero) Tbk's Cyclically Adjusted Book per Share compare to competitors?
PT Bukit Asam (Persero) Tbk's Cyclically Adjusted Book per Share of $2.72 can be compared against companies in the Other Energy Sources 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 Other Energy Sources company?
A good Cyclically Adjusted Book per Share depends on the Other Energy Sources 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 PT Bukit Asam (Persero) Tbk and its competitors. PT Bukit Asam (Persero) Tbk's current Cyclically Adjusted Book per Share is $2.72. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is PT Bukit Asam (Persero) Tbk stock overvalued right now?
Based on GuruFocus' analysis, PT Bukit Asam (Persero) Tbk (TBNGY) is currently considered Fairly Valued. The stock's GF Value™ is $4.02, compared to a current price of $3.80 — trading 5.5% below its estimated fair value. The current Cyclically Adjusted Book per Share is $2.72. PT Bukit Asam (Persero) Tbk's overall GF Score™ is 77/100 with 6 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 PT Bukit Asam (Persero) Tbk (TBNGY), the current Cyclically Adjusted Book per Share is $2.72 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 PT Bukit Asam (Persero) Tbk (TBNGY) Overvalued in 2026?

Based on GuruFocus' analysis, PT Bukit Asam (Persero) Tbk stock appears to be undervalued. The current stock price of $3.80 is trading 5.5% below its estimated GF Value™ of $4.02. GuruFocus considers PT Bukit Asam (Persero) Tbk to be Fairly Valued.

Key valuation signals for TBNGY:

  • Cyclically Adjusted Book per Share: $2.72
  • GF Value™: $4.02 vs. price of $3.80 (5.5% below fair value)
  • GF Score™: 77/100 with 6 warning signs

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


PT Bukit Asam (Persero) Tbk Business Description

Address Jalan Parigi No. 1, Tanjung Enim, Muara Enim, South Sumatra, 5d356, Palembang, IDN, 31716
PT Bukit Asam (Persero) Tbk operates in Indonesia's energy sector, managing coal reserves and producing coal for domestic and export markets. The operations of the company include logistics and infrastructure for coal distribution via dedicated routes and railways, downstream processing of coal for power generation and derivative products, and development of renewable energy projects, including solar power (PV) and biomass.
77GF Score

Get the complete analysis for TBNGY

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

$3.80
Price
$4.02
GF Value