S-Oil (XKRX:010950) Cyclically Adjusted Book per Share: ₩ (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.
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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.

XKRX:010950 S-Oil Corp XKRX:010950
54 GF Score
Price ₩149,500.00
GF Value ₩74,398.77
Valuation Significantly Overvalued
! 7 Warning Signs
View Full Analysis

What is S-Oil Cyclically Adjusted Book per Share?

S-Oil XKRX:010950 -1.77% 54 Cyclically Adjusted Book per Share is ₩ as of Jun. 2026. GuruFocus rates XKRX:010950 with a GF Score™ of 54/100 and a GF Value™ of ₩74,398.77 (Significantly Overvalued). The stock has 7 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.

S-Oil's adjusted book value per share for the three months ended in Jun. 2026 was ₩86,630.662. 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 for the trailing ten years ended in Jun. 2026.

During the past 12 months, S-Oil's average Cyclically Adjusted Book Growth Rate was 6.10% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 5.70% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 6.30% 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 S-Oil was 6.80% per year. The lowest was 4.00% per year. And the median was 5.30% per year.

As of today (2026-09-20), S-Oil's current stock price is ₩149500.00. S-Oil's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was . S-Oil's Cyclically Adjusted PB Ratio of today is .

During the past 13 years, the highest Cyclically Adjusted PB Ratio of S-Oil was 2.82. The lowest was 0.73. And the median was 1.53.


S-Oil  (XKRX:010950) 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.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of S-Oil was 2.82. The lowest was 0.73. And the median was 1.53.


Be Aware

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


S-Oil Cyclically Adjusted Book per Share Related Terms


S-Oil Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for S-Oil'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.

S-Oil Cyclically Adjusted Book per Share Chart

S-Oil Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted Book per Share
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S-Oil Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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XKRX:010950 vs MPC, VLO, PSX: Cyclically Adjusted Book per Share Comparison

For the Oil & Gas Refining & Marketing subindustry, S-Oil'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.


S-Oil Cyclically Adjusted PB Ratio vs Oil & Gas Industry

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

* The bar in red indicates where S-Oil's Cyclically Adjusted PB Ratio falls into.


XKRX:010950
54GF Score
S-Oil Corp XKRX:010950
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

S-Oil 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, S-Oil'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)
=86630.662/126.4904*126.4904
=86,630.662

Current CPI (Jun. 2026) = 126.4904.

S-Oil Quarterly Data

Book Value per Share CPI Adj_Book
201609 53,503.460 101.461 66,702.090
201612 54,900.790 101.561 68,376.664
201703 52,583.185 102.851 64,669.220
201706 53,158.873 102.611 65,529.694
201709 55,383.427 103.491 67,691.931
201712 58,774.974 102.991 72,185.768
201803 55,711.050 104.101 67,693.169
201806 57,110.698 104.130 69,374.188
201809 58,484.235 105.651 70,020.438
201812 55,567.759 104.351 67,357.364
201903 56,386.694 104.491 68,258.341
201906 55,087.183 104.881 66,437.262
201909 55,413.894 105.200 66,628.381
201912 55,803.044 105.121 67,146.709
202003 47,965.404 105.354 57,588.242
202006 47,469.916 105.112 57,124.782
202009 47,811.978 106.198 56,948.144
202012 48,809.876 105.765 58,374.296
202103 51,770.726 107.357 60,997.305
202106 55,298.752 107.579 65,020.006
202109 57,173.333 108.759 66,494.400
202112 60,024.082 109.676 69,226.106
202203 64,703.880 111.848 73,174.484
202206 73,417.274 114.072 81,409.600
202209 70,838.445 114.715 78,109.749
202212 72,869.116 115.179 80,025.244
202303 72,149.063 116.507 78,331.195
202306 71,955.875 117.182 77,671.653
202309 76,441.996 118.964 81,278.464
202312 77,505.997 118.837 82,497.508
202403 77,559.238 120.123 81,670.310
202406 77,378.677 120.007 81,558.870
202409 75,482.630 120.861 78,998.289
202412 74,691.627 121.135 77,993.628
202503 74,324.038 122.590 76,688.778
202506 73,706.287 122.611 76,038.285
202509 74,265.311 123.402 76,124.145
202512 76,338.707 123.939 77,910.022
202603 82,186.484 125.236 83,009.688
202606 86,630.662 126.490 86,630.662

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 ₩ mean?
S-Oil (XKRX:010950) has a Cyclically Adjusted Book per Share of ₩ 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 S-Oil and its competitors.
Is S-Oil's Cyclically Adjusted Book per Share too high?
S-Oil's current Cyclically Adjusted Book per Share is ₩. Overall, S-Oil has a GF Score™ of 54/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does S-Oil's Cyclically Adjusted Book per Share compare to MPC and VLO?
S-Oil's Cyclically Adjusted Book per Share of ₩ 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 S-Oil and its competitors. S-Oil's current Cyclically Adjusted Book per Share is ₩. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is S-Oil stock overvalued right now?
Based on GuruFocus' analysis, S-Oil (XKRX:010950) is currently considered Significantly Overvalued. The stock's GF Value™ is ₩74,398.77, compared to a current price of ₩149,500.00 — trading 100.9% above its estimated fair value. The current Cyclically Adjusted Book per Share is ₩. S-Oil's overall GF Score™ is 54/100 with 7 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 S-Oil (XKRX:010950), the current Cyclically Adjusted Book per Share is ₩ 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 S-Oil (XKRX:010950) Overvalued in 2026?

Based on GuruFocus' analysis, S-Oil stock appears to be overvalued. The current stock price of ₩149,500.00 is trading 100.9% above its estimated GF Value™ of ₩74,398.77. GuruFocus considers S-Oil to be Significantly Overvalued.

Key valuation signals for XKRX:010950:

  • Cyclically Adjusted Book per Share:
  • GF Value™: ₩74,398.77 vs. price of ₩149,500.00 (100.9% above fair value)
  • GF Score™: 54/100 with 7 warning signs

No single metric tells the full story. See the XKRX:010950 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


S-Oil Business Description

Industry EnergyOil & Gas
Other Exchanges 010955:Korea
Address 192, Baekbeom-ro, Mapo-gu, Seoul, KOR, 04196
S-Oil is an integrated energy company that operates a refinery, petrochemical, and lube oil business. Revenue is primarily derived from refining operations, with the majority of sales from Asian countries. Refining operations include a cracking center, which is used for replacement and low sulfurization of all products that actively respond to changes in market conditions. The company exports ultra-low-sulfur diesel fuel, processed to meet environmental regulations around the world. Other products from S-Oil facilities include LPG, naphtha, kerosene/diesel, B-C oil, and other crude oil byproducts.
54GF Score

Get the complete analysis for XKRX:010950

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

₩149,500.00
Price
₩74,398.77
GF Value