INA-Industrija Nafte DD (ZAG:INA) Cyclically Adjusted Book per Share: €180.23 (As of Jun. 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.

ZAG:INA INA-Industrija Nafte DD ZAG:INA
77 GF Score
Price €515.00
GF Value €518.52
Valuation Fairly Valued
! 4 Warning Signs
View Full Analysis

What is INA-Industrija Nafte DD Cyclically Adjusted Book per Share?

INA-Industrija Nafte DD ZAG:INA 77 Cyclically Adjusted Book per Share is €180.23 as of Jun. 2026. GuruFocus rates ZAG:INA with a GF Score™ of 77/100 and a GF Value™ of €518.52 (Fairly Valued). 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.

INA-Industrija Nafte DD's adjusted book value per share for the three months ended in Jun. 2026 was €162.110. 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 €180.23 for the trailing ten years ended in Jun. 2026.

During the past 12 months, INA-Industrija Nafte DD's average Cyclically Adjusted Book Growth Rate was 1.40% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -1.10% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was -2.10% 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 INA-Industrija Nafte DD was -1.10% per year. The lowest was -6.70% per year. And the median was -2.45% per year.

As of today (2026-08-03), INA-Industrija Nafte DD's current stock price is €515.00. INA-Industrija Nafte DD's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was €180.23. INA-Industrija Nafte DD's Cyclically Adjusted PB Ratio of today is 2.86.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of INA-Industrija Nafte DD was 19.16. The lowest was 2.42. And the median was 2.86.


INA-Industrija Nafte DD  (ZAG:INA) 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.

INA-Industrija Nafte DD's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=515.00/180.23
=2.86

* 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 INA-Industrija Nafte DD was 19.16. The lowest was 2.42. And the median was 2.86.


Be Aware

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


INA-Industrija Nafte DD Cyclically Adjusted Book per Share Related Terms


INA-Industrija Nafte DD Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for INA-Industrija Nafte DD'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.

INA-Industrija Nafte DD Cyclically Adjusted Book per Share Chart

INA-Industrija Nafte DD 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 184.72 182.26 178.66 176.78 176.38

INA-Industrija Nafte DD Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 177.67 177.45 176.38 179.01 180.23

ZAG:INA vs MPC, VLO, PSX: Cyclically Adjusted Book per Share Comparison

For the Oil & Gas Refining & Marketing subindustry, INA-Industrija Nafte DD'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.


INA-Industrija Nafte DD Cyclically Adjusted PB Ratio vs Oil & Gas Industry

For the Oil & Gas industry and Energy sector, INA-Industrija Nafte DD's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where INA-Industrija Nafte DD's Cyclically Adjusted PB Ratio falls into.


ZAG:INA
77GF Score
INA-Industrija Nafte DD ZAG:INA
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

INA-Industrija Nafte DD 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, INA-Industrija Nafte DD'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)
=162.11/333.9520*333.9520
=162.110

Current CPI (Jun. 2026) = 333.9520.

INA-Industrija Nafte DD Quarterly Data

Book Value per Share CPI Adj_Book
201609 144.236 241.428 199.512
201612 142.279 241.432 196.802
201703 146.616 243.801 200.831
201706 153.140 244.955 208.779
201709 155.916 246.819 210.958
201712 156.973 246.524 212.642
201803 157.269 249.554 210.457
201806 152.803 251.989 202.504
201809 157.784 252.439 208.733
201812 159.110 251.233 211.497
201903 160.476 254.202 210.822
201906 146.322 256.143 190.770
201909 153.535 256.759 199.694
201912 150.373 256.974 195.418
202003 135.702 258.115 175.573
202006 134.359 257.797 174.050
202009 125.007 260.280 160.390
202012 123.037 260.474 157.745
202103 122.209 264.877 154.079
202106 129.528 271.696 159.208
202109 138.016 274.310 168.024
202112 141.628 278.802 169.644
202203 147.345 287.504 171.149
202206 150.443 296.311 169.554
202209 163.204 296.808 183.628
202212 158.114 296.797 177.908
202303 156.680 301.836 173.351
202306 146.010 305.109 159.813
202309 154.650 307.789 167.796
202312 163.943 306.746 178.483
202403 165.340 312.332 176.785
202406 144.740 314.175 153.851
202409 157.160 315.301 166.456
202412 158.122 315.605 167.314
202503 161.120 319.799 168.251
202506 151.080 322.561 156.415
202509 159.950 324.800 164.457
202512 163.379 324.054 168.369
202603 163.500 330.213 165.351
202606 162.110 333.952 162.110

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 €180.23 mean?
INA-Industrija Nafte DD (ZAG:INA) has a Cyclically Adjusted Book per Share of €180.23 as of Jun. 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 INA-Industrija Nafte DD and its competitors.
Is INA-Industrija Nafte DD's Cyclically Adjusted Book per Share too high?
INA-Industrija Nafte DD's current Cyclically Adjusted Book per Share is €180.23. Overall, INA-Industrija Nafte DD has a GF Score™ of 77/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does INA-Industrija Nafte DD's Cyclically Adjusted Book per Share compare to MPC and VLO?
INA-Industrija Nafte DD's Cyclically Adjusted Book per Share of €180.23 can be compared against companies in the Oil & Gas 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 Oil & Gas company?
A good Cyclically Adjusted Book per Share depends on the Oil & Gas 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 INA-Industrija Nafte DD and its competitors. INA-Industrija Nafte DD's current Cyclically Adjusted Book per Share is €180.23. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is INA-Industrija Nafte DD stock overvalued right now?
Based on GuruFocus' analysis, INA-Industrija Nafte DD (ZAG:INA) is currently considered Fairly Valued. The stock's GF Value™ is €518.52, compared to a current price of €515.00 — trading 0.7% below its estimated fair value. The current Cyclically Adjusted Book per Share is €180.23. INA-Industrija Nafte DD's overall GF Score™ is 77/100 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 INA-Industrija Nafte DD (ZAG:INA), the current Cyclically Adjusted Book per Share is €180.23 as of Jun. 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 INA-Industrija Nafte DD (ZAG:INA) Overvalued in 2026?

Based on GuruFocus' analysis, INA-Industrija Nafte DD stock appears to be undervalued. The current stock price of €515.00 is trading 0.7% below its estimated GF Value™ of €518.52. GuruFocus considers INA-Industrija Nafte DD to be Fairly Valued.

Key valuation signals for ZAG:INA:

  • Cyclically Adjusted Book per Share: €180.23
  • GF Value™: €518.52 vs. price of €515.00 (0.7% below fair value)
  • GF Score™: 77/100 with 4 warning signs

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


INA-Industrija Nafte DD Business Description

Industry EnergyOil & Gas
Address Avenija Veceslava, Holjevca 10, Zagreb, HRV, 10 020
INA-Industrija Nafte DD is a medium-sized European oil and gas company. It is engaged in exploration and production of oil and gas deposits, import of natural gas and sale of imported and domestically produced natural gas to industrial consumers and municipal gas distributors, refining and production of oil products through refineries located at Rijeka and Sisak, and Zagreb lubricants plants. Its segments are Exploration and Production of Oil & Gas; Refining & Marketing; Corporate and other. Exploration and Production of Oil & Gas segment include exploration, production, and selling of crude oil and natural gas. Refining & Marketing segment includes crude oil processing, wholesale of refinery products, trading, and logistics.
77GF Score

Get the complete analysis for ZAG:INA

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

€515.00
Price
€518.52
GF Value