China Oilfield ServicesCHOLF 74 Piotroski F-Score is 8 as of Jun. 29, 2026, which is 33% above its 10-year median of 6.00. GuruFocus rates CHOLF with a GF Score™ of 74/100 and a GF Value™ of $1.34 (Significantly Undervalued). The stock has 4 warning signs investors should review. Among 976 Oil & Gas companies, China Oilfield Services ranks better than 98.36% on this metric.
Good Sign:
Piotroski F-Score is 8, indicates a very healthy situation.
The zones of discrimination were as such:
Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
China Oilfield Services has an F-score of 8. It is a good or high score, which usually indicates a very healthy situation.
The historical rank and industry rank for China Oilfield Services's Piotroski F-Score or its related term are showing as below:
CHOLF'
s Piotroski F-Score Range Over the Past 10 Years
Min: 2 Med: 6 Max: 9
Current: 8
During the past 13 years, the highest Piotroski F-Score of China Oilfield Services was 9. The lowest was 2. And the median was 6.
China Oilfield Services (OTCPK:CHOLF) Piotroski F-Score Explanation
The developer of the system is Joseph D. Piotroski is relatively unknown accounting professor who shuns publicity and rarely gives interviews.
He graduated from the University of Illinois with a B.S. in accounting in 1989, received an M.B.A. from Indiana University in 1994. Five years later, in 1999, after earning a Ph.D. in accounting from the University of Michigan, he became an associate professor of accounting at the University of Chicago.
He wanted to see if he can develop a system (using a simple nine-point scoring system) that can increase the returns of a strategy of investing in low price to book (referred to in the paper as high book to market) value companies.
What he found was something that exceeded his most optimistic expectations.
Buying only those companies that scored highest (8 or 9) on his nine-point scale, or F-Score as he called it, over the 20 year period from 1976 to 1996 led to an average out-performance over the market of 13.4%.
Even more impressive were the results of a strategy of investing in the highest F-Score companies (8 or 9) and shorting companies with the lowest F-Score (0 or 1).
Over the same period from 1976 to 1996 (20 years) this strategy led to an average yearly return of 23%, substantially outperforming the average S&P 500 index return of 15.83% over the same period.
China Oilfield Services Piotroski F-Score Related Terms
China Oilfield Services Piotroski F-Score Historical Data
* Premium members only.
The historical data trend for China Oilfield Services's Piotroski F-Score 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.
CHOLF vs SLB, BKR, HAL: Piotroski F-Score Comparison
For the Oil & Gas Equipment & Services subindustry, China Oilfield Services's Piotroski F-Score, along with its competitors' market caps and Piotroski F-Score 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.
China Oilfield Services Piotroski F-Score vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, China Oilfield Services's Piotroski F-Score distribution charts can be found below:
* The bar in red indicates where China Oilfield Services's Piotroski F-Score falls into.
* 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.
This Year (Mar26) TTM:
Last Year (Mar25) TTM:
Net Income was 149.944 + 174.848 + 89.784 + 124.155 = $539 Mil. Cash Flow from Operations was 249.765 + 348.298 + 1320.929 + -330.575 = $1,588 Mil. Revenue was 1744.023 + 1619.062 + 2190.59 + 1639.023 = $7,193 Mil. Gross Profit was 304.578 + 316.247 + 340.529 + 301.936 = $1,263 Mil.
Average Total Assets from the begining of this year (Mar25)
to the end of this year (Mar26) was
(11501.515 + 11694.945 + 11778.233 + 11992.111 + 12541.626) / 5 = $11901.686 Mil. Total Assets at the begining of this year (Mar25) was $11,502 Mil. Long-Term Debt & Capital Lease Obligation was $1,484 Mil. Total Current Assets was $5,033 Mil. Total Current Liabilities was $3,941 Mil.
Net Income was 131.898 + 120.456 + 95.08 + 122.383 = $470 Mil.
*Note: If the latest quarterly/semi-annual/annual total assets data is 0, then we will use previous quarterly/semi-annual/annual data for all the items in the balance sheet.
Profitability
Question 1. Return on Assets (ROA)
Net income before extraordinary items for the year divided by Total Assets at the beginning of the year.
Score 1 if positive, 0 if negative.
China Oilfield Services's current Net Income (TTM) was 539.
==> Positive ==> Score 1.
Question 2. Cash Flow Return on Assets (CFROA)
Net cash flow from operating activities (operating cash flow) divided by Total Assets at the beginning of the year.
Score 1 if positive, 0 if negative.
China Oilfield Services's current Cash Flow from Operations (TTM) was 1,588.
==> Positive ==> Score 1.
Question 3. Change in Return on Assets
Compare this year's return on assets (1) to last year's return on assets.
China Oilfield Services's return on assets of this year was 0.04684. China Oilfield Services's return on assets of last year was 0.04102911.
==> This year is higher. ==> Score 1.
Question 4. Quality of Earnings (Accrual)
Compare Cash flow return on assets (2) to return on assets (1)
China Oilfield Services's gearing of this year was 0.12470872. China Oilfield Services's gearing of last year was 0.09251298.
==> Last year is lower than this year ==> Score 0.
Question 6. Change in Working Capital (Liquidity)
Compare this year's current ratio (current assets divided by current liabilities) to last year's current ratio.
Score 1 if this year's current ratio is higher, 0 if it's lower
China Oilfield Services's current ratio of this year was 1.27727377. China Oilfield Services's current ratio of last year was 1.02381725.
==> This year's current ratio is higher. ==> Score 1.
Question 7. Change in Shares in Issue
Compare the number of shares in issue this year, to the number in issue last year.
Score 0 if there is larger number of shares in issue this year, 1 otherwise.
China Oilfield Services's number of shares in issue this year was 0. China Oilfield Services's number of shares in issue last year was 0.
==> There is smaller number of shares in issue this year, or the same. ==> Score 1.
Efficiency
Question 8. Change in Gross Margin
Compare this year's gross margin (Gross Profit divided by sales) to last year's.
Score 1 if this year's gross margin is higher, 0 if it's lower.
China Oilfield Services's gross margin of this year was 0.17563507. China Oilfield Services's gross margin of last year was 0.1599023.
==> This year's gross margin is higher. ==> Score 1.
Question 9. Change in asset turnover
Compare this year's asset turnover (total sales for the year divided by total assets at the beginning of the year) to last year's asset turnover ratio.
Score 1 if this year's asset turnover ratio is higher, 0 if it's lower
China Oilfield Services's asset turnover of this year was 0.62536961. China Oilfield Services's asset turnover of last year was 0.59211174.
==> This year's asset turnover is higher. ==> Score 1.
Evaluation
Piotroski F-Score
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Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
China Oilfield Services has an F-score of 8. It is a good or high score, which usually indicates a very healthy situation.
China Oilfield Services (CHOLF) has a Piotroski F-Score of 8 as of Jun. 29, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on China Oilfield Services and its competitors. This is 33% above median its historical median of 6.00. Over the past decade, China Oilfield Services' Piotroski F-Score has ranged from 2.00 to 9.00. According to the industry distribution chart, China Oilfield Services ranks #16 out of 976 companies in the Oil & Gas industry, placing it in the top 1.6%.
Is China Oilfield Services' Piotroski F-Score too high?
China Oilfield Services' current Piotroski F-Score of 8 is 33% above median its 10-year median of 6.00. Over the past 10 years, this metric has ranged from a low of 2.00 to a high of 9.00. The Oil & Gas industry median Piotroski F-Score is 5.00. China Oilfield Services' value of 8 is 60% above this industry median. Based on the distribution chart, China Oilfield Services ranks #16 out of 976 companies in the Oil & Gas industry, which is in the top quartile — a strong position relative to peers. Overall, China Oilfield Services has a GF Score™ of 74/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does China Oilfield Services' Piotroski F-Score compare to SLB and BKR?
According to the Oil & Gas industry distribution chart, China Oilfield Services ranks #16 out of 976 companies for Piotroski F-Score. This places China Oilfield Services in the top 2% of its industry — outperforming the majority of peers. The industry median Piotroski F-Score is 5.00. China Oilfield Services' value of 8 is 60% above this benchmark. Historically, China Oilfield Services' own Piotroski F-Score has ranged from 2.00 to 9.00 over the past decade. While the company's 10-year median is 6.00 vs. the industry median of 5.00, China Oilfield Services has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Piotroski F-Score for an Oil & Gas company?
The median Piotroski F-Score among Oil & Gas companies is 5.00, based on 976 companies in the industry. Companies in the top quartile (top 25%) have a Piotroski F-Score significantly above this median, while those in the bottom quartile fall well below. However, Piotroski F-Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. China Oilfield Services's current Piotroski F-Score of 8 is 60% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Piotroski F-Score mean?
A high Piotroski F-Score can signal that a stock is expensive relative to its fundamentals. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on China Oilfield Services and its competitors. For the Oil & Gas industry, the median Piotroski F-Score is 5.00 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. China Oilfield Services's current Piotroski F-Score is 8, which is 33% above median its own 10-year median of 6.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is China Oilfield Services stock overvalued right now?
Based on GuruFocus' analysis, China Oilfield Services (CHOLF) is currently considered Significantly Undervalued. The stock's GF Value™ is $1.34, compared to a current price of $0.88 — trading 34.6% below its estimated fair value. The current Piotroski F-Score is 8, which is 33% above median its 10-year median of 6.00 and 60% above the Oil & Gas industry median of 5.00. China Oilfield Services' overall GF Score™ is 74/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Piotroski F-Score calculated?
Piotroski F-Score is calculated from a company's financial statements. For China Oilfield Services (CHOLF), the current Piotroski F-Score is 8 as of Jun. 29, 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 China Oilfield Services (CHOLF) Overvalued in 2026?
Based on GuruFocus' analysis, China Oilfield Services stock appears to be undervalued.
The current stock price of $0.88 is trading 34.6% below its estimated GF Value™ of $1.34.
GuruFocus considers China Oilfield Services to be Significantly Undervalued.
Key valuation signals for CHOLF:
Piotroski F-Score: 8 (33% above median its 10-year median of 6.00)
GF Value™: $1.34 vs. price of $0.88 (34.6% below fair value)
Industry Position: 60% above the Oil & Gas median (#16 of 976)
No single metric tells the full story. See the CHOLF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
China Oilfield Services Ltd is engaged in the provision of oilfield services including drilling services, well services, marine support services, and geophysical acquisition and surveying services. It operates in four segments namely the drilling services segment offers oilfield drilling services, the well services segment offers logging and downhole services, the marine support services segment is engaged in the transportation of materials, supplies, and personnel to offshore facilities, moving and positioning drilling structures, and the geophysical acquisition and surveying services segment is engaged in the provision of offshore seismic data acquisition and marine surveying. It generates the majority of its revenue from Well services segment.
74GF Score
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