S-Oil (XKRX:010955) FCF Margin %: -5.82% (As of Jun. 2026)

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XKRX:010955 S-Oil Corp XKRX:010955
59 GF Score
Price ₩76,400.00
GF Value ₩38,933.78
Valuation Significantly Overvalued
! 7 Warning Signs
View Full Analysis

What is S-Oil FCF Margin %?

S-Oil XKRX:010955 +0.39% 59 FCF Margin % is -5.82% as of Jun. 2026. GuruFocus rates XKRX:010955 with a GF Score™ of 59/100 and a GF Value™ of ₩38,933.78 (Significantly Overvalued). The stock has 7 warning signs investors should review. Among 919 Oil & Gas companies, S-Oil ranks worse than 69.21% on this metric.

FCF Margin % is calculated as Free Cash Flow divided by its Revenue. S-Oil's Free Cash Flow for the three months ended in Jun. 2026 was ₩-660,142 Mil. S-Oil's Revenue for the three months ended in Jun. 2026 was ₩11,343,488 Mil. Therefore, S-Oil's FCF Margin % for the quarter that ended in Jun. 2026 was -5.82%.

As of today, S-Oil's current FCF Yield % is -6.06%.

The historical rank and industry rank for S-Oil's FCF Margin % or its related term are showing as below:

XKRX:010955' s FCF Margin % Range Over the Past 10 Years
Min: -9.15   Med: 0.52   Max: 6.44
Current: -2.76


During the past 13 years, the highest FCF Margin % of S-Oil was 6.44%. The lowest was -9.15%. And the median was 0.52%.

XKRX:010955's FCF Margin % is ranked worse than
69.21% of 919 companies
in the Oil & Gas industry
Industry Median: 3.31 vs XKRX:010955: -2.76


S-Oil FCF Margin % Related Terms


S-Oil FCF Margin % Historical Data

* Premium members only.

The historical data trend for S-Oil's FCF Margin % 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 FCF Margin % Chart

S-Oil Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
FCF Margin %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 4.39 1.60 0.95 -4.30 0.11

S-Oil Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
FCF Margin % 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 -9.13 -0.34 7.00 -10.75 -5.82

XKRX:010955 vs MPC, VLO, PSX: FCF Margin % Comparison

For the Oil & Gas Refining & Marketing subindustry, S-Oil's FCF Margin %, along with its competitors' market caps and FCF Margin % 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 FCF Margin % vs Oil & Gas Industry

For the Oil & Gas industry and Energy sector, S-Oil's FCF Margin % distribution charts can be found below:

* The bar in red indicates where S-Oil's FCF Margin % falls into.


XKRX:010955
59GF Score
S-Oil Corp XKRX:010955
FCF Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

S-Oil FCF Margin % Calculation

FCF margin is the ratio of Free Cash Flow divided by net sales or Revenue, usually presented in percent.

S-Oil's FCF Margin for the fiscal year that ended in Dec. 2025 is calculated as

FCF Margin=Free Cash Flow (A: Dec. 2025 )/Revenue (A: Dec. 2025 )
=36268/34246957
=0.11 %

S-Oil's FCF Margin for the quarter that ended in Jun. 2026 is calculated as

FCF Margin=Free Cash Flow (Q: Jun. 2026 )/Revenue (Q: Jun. 2026 )
=-660142/11343488
=-5.82 %

* 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.

Frequently Asked Questions Learn more about FCF Margin % →
What does a FCF Margin % of -5.82% mean?
S-Oil (XKRX:010955) has a FCF Margin % of -5.82% as of Jun. 2026. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on S-Oil and its competitors. According to the industry distribution chart, S-Oil ranks #636 out of 919 companies in the Oil & Gas industry, placing it in the top 69.2%.
Is S-Oil's FCF Margin % too high?
S-Oil's current FCF Margin % is -5.82%. Based on the distribution chart, S-Oil ranks #636 out of 919 companies in the Oil & Gas industry, which is below the industry midpoint. Overall, S-Oil has a GF Score™ of 59/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does S-Oil's FCF Margin % compare to MPC and VLO?
According to the Oil & Gas industry distribution chart, S-Oil ranks #636 out of 919 companies for FCF Margin %. This places S-Oil in the lower half of its industry. The industry median FCF Margin % is 3.31. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good FCF Margin % for an Oil & Gas company?
The median FCF Margin % among Oil & Gas companies is 3.31, based on 919 companies in the industry. Companies in the top quartile (top 25%) have a FCF Margin % significantly above this median, while those in the bottom quartile fall well below. However, FCF Margin % 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 FCF Margin % mean?
A high FCF Margin % can signal that a stock is expensive relative to its fundamentals. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on S-Oil and its competitors. For the Oil & Gas industry, the median FCF Margin % is 3.31 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. S-Oil's current FCF Margin % is -5.82%. 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:010955) is currently considered Significantly Overvalued. The stock's GF Value™ is ₩38,933.78, compared to a current price of ₩76,400.00 — trading 96.2% above its estimated fair value. The current FCF Margin % is -5.82%. S-Oil's overall GF Score™ is 59/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is FCF Margin % calculated?
FCF Margin % is calculated from a company's financial statements. For S-Oil (XKRX:010955), the current FCF Margin % is -5.82% 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:010955) Overvalued in 2026?

Based on GuruFocus' analysis, S-Oil stock appears to be overvalued. The current stock price of ₩76,400.00 is trading 96.2% above its estimated GF Value™ of ₩38,933.78. GuruFocus considers S-Oil to be Significantly Overvalued.

Key valuation signals for XKRX:010955:

  • FCF Margin %: -5.82%
  • GF Value™: ₩38,933.78 vs. price of ₩76,400.00 (96.2% above fair value)
  • GF Score™: 59/100 with 7 warning signs

No single metric tells the full story. See the XKRX:010955 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 010950: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.
59GF Score

Get the complete analysis for XKRX:010955

FCF Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

₩76,400.00
Price
₩38,933.78
GF Value