TBNGY (PT Bukit Asam (Persero) Tbk) Cyclically Adjusted PB Ratio: (As of Sep. 21, 2026)

Author: Vera Yuan Vera Yuan
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Director of Data and Quant Analytics at GuruFocus
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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
82 GF Score
Price $3.75
GF Value $4.42
Valuation Modestly Undervalued
! 7 Warning Signs
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What is PT Bukit Asam (Persero) Tbk Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


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


PT Bukit Asam (Persero) Tbk Cyclically Adjusted PB Ratio Related Terms


PT Bukit Asam (Persero) Tbk Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

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

PT Bukit Asam (Persero) Tbk Cyclically Adjusted PB Ratio Chart

PT Bukit Asam (Persero) Tbk 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 1.85 2.13 1.47 1.36 1.06

PT Bukit Asam (Persero) Tbk 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 1.31 1.07 1.12 1.46 1.10

PT Bukit Asam (Persero) Tbk Cyclically Adjusted PB Ratio 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
82GF Score
PT Bukit Asam (Persero) Tbk TBNGY
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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PT Bukit Asam (Persero) Tbk 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.

PT Bukit Asam (Persero) Tbk's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 is calculated as:

For example, PT Bukit Asam (Persero) Tbk'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)
=3.071/137.6954*137.6954
=3.071

Current CPI (Jun. 2026) = 137.6954.

PT Bukit Asam (Persero) Tbk Quarterly Data

Book Value per Share CPI Adj_Book
201609 1.734 104.142 2.293
201612 1.863 105.222 2.438
201703 2.014 106.476 2.605
201706 2.132 107.722 2.725
201709 2.279 108.020 2.905
201712 2.403 109.017 3.035
201803 2.592 110.097 3.242
201806 2.249 111.085 2.788
201809 2.379 111.135 2.948
201812 2.664 112.430 3.263
201903 2.933 112.829 3.579
201906 2.720 114.730 3.264
201909 2.767 114.905 3.316
201912 2.965 115.486 3.535
202003 2.743 116.252 3.249
202006 2.499 116.630 2.950
202009 2.498 116.397 2.955
202012 2.703 117.318 3.172
202103 2.695 117.840 3.149
202106 2.699 118.184 3.145
202109 3.192 118.262 3.717
202112 3.714 119.516 4.279
202203 3.996 120.948 4.549
202206 3.322 123.322 3.709
202209 3.761 125.298 4.133
202212 4.055 126.098 4.428
202303 4.292 126.953 4.655
202306 2.669 127.663 2.879
202309 2.723 128.151 2.926
202312 3.043 129.395 3.238
202403 3.091 130.607 3.259
202406 2.593 130.792 2.730
202409 2.921 130.361 3.085
202412 3.060 131.432 3.206
202503 3.045 131.948 3.178
202506 2.629 133.241 2.717
202509 2.706 133.819 2.784
202512 2.945 135.271 2.998
202603 3.014 136.539 3.040
202606 3.071 137.695 3.071

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 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 $3.75 is trading 15.2% below its estimated GF Value™ of $4.42. GuruFocus considers PT Bukit Asam (Persero) Tbk to be Modestly Undervalued.

Key valuation signals for TBNGY:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: $4.42 vs. price of $3.75 (15.2% below fair value)
  • GF Score™: 82/100 with 7 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.
82GF Score

Get the complete analysis for TBNGY

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

$3.75
Price
$4.42
GF Value