PT Indo Straits Tbk (ISX:PTIS) Cyclically Adjusted Book per Share: Rp560.70 (As of Mar. 2026)

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ISX:PTIS PT Indo Straits Tbk ISX:PTIS
61 GF Score
Price Rp268.00
GF Value Rp297.78
Valuation Modestly Undervalued
! 4 Warning Signs
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What is PT Indo Straits Tbk Cyclically Adjusted Book per Share?

PT Indo Straits Tbk ISX:PTIS -1.47% 61 Cyclically Adjusted Book per Share is Rp560.70 as of Mar. 2026. GuruFocus rates ISX:PTIS with a GF Score™ of 61/100 and a GF Value™ of Rp297.78 (Modestly Undervalued). The stock has 4 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 Indo Straits Tbk's adjusted book value per share for the three months ended in Mar. 2026 was Rp626.383. 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 Rp560.70 for the trailing ten years ended in Mar. 2026.

During the past 12 months, PT Indo Straits Tbk's average Cyclically Adjusted Book Growth Rate was -4.40% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -8.30% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was -6.60% 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 Indo Straits Tbk was -5.00% per year. The lowest was -8.30% per year. And the median was -7.20% per year.

As of today (2026-07-14), PT Indo Straits Tbk's current stock price is Rp268.00. PT Indo Straits Tbk's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was Rp560.70. PT Indo Straits Tbk's Cyclically Adjusted PB Ratio of today is 0.48.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of PT Indo Straits Tbk was 0.91. The lowest was 0.18. And the median was 0.42.


PT Indo Straits Tbk  (ISX:PTIS) 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 Indo Straits Tbk's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=268.00/560.70
=0.48

* 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 Indo Straits Tbk was 0.91. The lowest was 0.18. And the median was 0.42.


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 Indo Straits Tbk Cyclically Adjusted Book per Share Related Terms


PT Indo Straits Tbk Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for PT Indo Straits 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 Indo Straits Tbk Cyclically Adjusted Book per Share Chart

PT Indo Straits 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 752.74 727.76 668.24 601.67 561.93

PT Indo Straits 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 586.41 577.57 565.55 561.93 560.70

PT Indo Straits Tbk Cyclically Adjusted Book per Share Competitor Comparison

For the Marine Shipping subindustry, PT Indo Straits 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 Indo Straits Tbk Cyclically Adjusted PB Ratio vs Transportation Industry

For the Transportation industry and Industrials sector, PT Indo Straits Tbk's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where PT Indo Straits Tbk's Cyclically Adjusted PB Ratio falls into.


ISX:PTIS
61GF Score
PT Indo Straits Tbk ISX:PTIS
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

PT Indo Straits 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 Indo Straits 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)
=626.383/136.5387*136.5387
=626.383

Current CPI (Mar. 2026) = 136.5387.

PT Indo Straits Tbk Quarterly Data

Book Value per Share CPI Adj_Book
201606 585.625 103.212 774.718
201609 548.480 104.142 719.099
201612 406.261 105.222 527.175
201703 387.349 106.476 496.715
201706 371.796 107.722 471.257
201709 359.467 108.020 454.369
201712 400.435 109.017 501.527
201803 405.145 110.097 502.450
201806 413.761 111.085 508.570
201809 440.960 111.135 541.759
201812 432.332 112.430 525.039
201903 424.561 112.829 513.780
201906 427.130 114.730 508.321
201909 422.719 114.905 502.308
201912 423.245 115.486 500.402
202003 461.204 116.252 541.686
202006 429.998 116.630 503.399
202009 449.084 116.397 526.797
202012 428.568 117.318 498.782
202103 436.192 117.840 505.407
202106 433.901 118.184 501.289
202109 432.504 118.262 499.346
202112 437.838 119.516 500.199
202203 440.662 120.948 497.464
202206 454.845 123.322 503.590
202209 467.931 125.298 509.908
202212 554.620 126.098 600.543
202303 594.815 126.953 639.730
202306 590.765 127.663 631.838
202309 568.072 128.151 605.251
202312 582.436 129.395 614.593
202403 603.282 130.607 630.681
202406 631.293 130.792 659.033
202409 587.651 130.361 615.500
202412 606.613 131.432 630.185
202503 623.408 131.948 645.095
202506 617.486 133.241 632.771
202509 625.023 133.819 637.726
202512 617.614 135.271 623.402
202603 626.383 136.539 626.383

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 Rp560.70 mean?
PT Indo Straits Tbk (ISX:PTIS) has a Cyclically Adjusted Book per Share of Rp560.70 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 Indo Straits Tbk and its competitors.
Is PT Indo Straits Tbk's Cyclically Adjusted Book per Share too high?
PT Indo Straits Tbk's current Cyclically Adjusted Book per Share is Rp560.70. Overall, PT Indo Straits Tbk has a GF Score™ of 61/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does PT Indo Straits Tbk's Cyclically Adjusted Book per Share compare to competitors?
PT Indo Straits Tbk's Cyclically Adjusted Book per Share of Rp560.70 can be compared against companies in the Transportation 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 a Transportation company?
A good Cyclically Adjusted Book per Share depends on the Transportation 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 Indo Straits Tbk and its competitors. PT Indo Straits Tbk's current Cyclically Adjusted Book per Share is Rp560.70. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is PT Indo Straits Tbk stock overvalued right now?
Based on GuruFocus' analysis, PT Indo Straits Tbk (ISX:PTIS) is currently considered Modestly Undervalued. The stock's GF Value™ is Rp297.78, compared to a current price of Rp268.00 — trading 10% below its estimated fair value. The current Cyclically Adjusted Book per Share is Rp560.70. PT Indo Straits Tbk's overall GF Score™ is 61/100 with 4 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 Indo Straits Tbk (ISX:PTIS), the current Cyclically Adjusted Book per Share is Rp560.70 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 Indo Straits Tbk (ISX:PTIS) Overvalued in 2026?

Based on GuruFocus' analysis, PT Indo Straits Tbk stock appears to be undervalued. The current stock price of Rp268.00 is trading 10% below its estimated GF Value™ of Rp297.78. GuruFocus considers PT Indo Straits Tbk to be Modestly Undervalued.

Key valuation signals for ISX:PTIS:

  • Cyclically Adjusted Book per Share: Rp560.70
  • GF Value™: Rp297.78 vs. price of Rp268.00 (10% below fair value)
  • GF Score™: 61/100 with 4 warning signs

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


PT Indo Straits Tbk Business Description

Address Jalan Yos Sudarso Kav.88, Graha Kirana Building, 15th Floor, Suite 1501, Jakarta, IDN, 14350
PT Indo Straits Tbk is an Indonesian-based firm. The company with its subsidiaries engaged in providing marine engineering solutions and related services. It operates in three segments namely; the Integrated Marine Engineering service segment which covers dredging, reclamation, port construction, installation of the pile, wave breaker, and coastal protection; Logistics Support service segment includes transshipment and sea transportation services; and Mining contractor Services segment providing mining, excavating, hauling, and contracting services. It generates the majority of its revenue from the Mining contractor Services segment.
61GF Score

Get the complete analysis for ISX:PTIS

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

Rp268.00
Price
Rp297.78
GF Value