Ecology and CombustionNGO:6225 37 Piotroski F-Score is 9 as of Jul. 13, 2026, which is 29% above its 10-year median of 7.00. GuruFocus rates NGO:6225 with a GF Score™ of 37/100. The stock has 6 warning signs investors should review. Among 2,971 Industrial Products companies, Ecology and Combustion ranks better than 99.97% on this metric.
Good Sign:
Piotroski F-Score is 9, 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
Ecology and Combustion has an F-score of 9. It is a good or high score, which usually indicates a very healthy situation.
The historical rank and industry rank for Ecology and Combustion's Piotroski F-Score or its related term are showing as below:
NGO:6225'
s Piotroski F-Score Range Over the Past 10 Years
Min: 5 Med: 7 Max: 9
Current: 9
During the past 4 years, the highest Piotroski F-Score of Ecology and Combustion was 9. The lowest was 5. And the median was 7.
Ecology and Combustion (NGO:6225) 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.
Ecology and Combustion Piotroski F-Score Related Terms
Ecology and Combustion Piotroski F-Score Historical Data
* Premium members only.
The historical data trend for Ecology and Combustion'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.
NGO:6225 vs GEV, ETN, PH: Piotroski F-Score Comparison
For the Specialty Industrial Machinery subindustry, Ecology and Combustion'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.
Ecology and Combustion Piotroski F-Score vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, Ecology and Combustion's Piotroski F-Score distribution charts can be found below:
* The bar in red indicates where Ecology and Combustion'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.
*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.
Ecology and Combustion's current Net Income (TTM) was 263.
==> 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.
Ecology and Combustion's return on assets of this year was 0.06498625. Ecology and Combustion's return on assets of last year was 0.05230705.
==> This year is higher. ==> Score 1.
Question 4. Quality of Earnings (Accrual)
Compare Cash flow return on assets (2) to return on assets (1)
Ecology and Combustion's gearing of this year was 0. Ecology and Combustion's gearing of last year was 0.03715422.
==> This year is lower or equal to last year. ==> Score 1.
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
Ecology and Combustion's current ratio of this year was 5.06728123. Ecology and Combustion's current ratio of last year was 4.53124369.
==> 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.
Ecology and Combustion's number of shares in issue this year was 1.825. Ecology and Combustion's number of shares in issue last year was 1.825.
==> 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.
Ecology and Combustion's gross margin of this year was 0.33814453. Ecology and Combustion's gross margin of last year was 0.31224277.
==> 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
Ecology and Combustion's asset turnover of this year was 0.65337963. Ecology and Combustion's asset turnover of last year was 0.61142553.
==> This year's asset turnover is higher. ==> Score 1.
Evaluation
Piotroski F-Score
=
Que. 1
+
Que. 2
+
Que. 3
+
Que. 4
+
Que. 5
+
Que. 6
+
Que. 7
+
Que. 8
+
Que. 9
=
1
+
1
+
1
+
1
+
1
+
1
+
1
+
1
+
1
=
9
Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
Ecology and Combustion has an F-score of 9. It is a good or high score, which usually indicates a very healthy situation.
Ecology and Combustion (NGO:6225) has a Piotroski F-Score of 9 as of Jul. 13, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Ecology and Combustion and its competitors. This is 29% above median its historical median of 7.00. Over the past decade, Ecology and Combustion's Piotroski F-Score has ranged from 5.00 to 9.00. According to the industry distribution chart, Ecology and Combustion ranks #1 out of 2971 companies in the Industrial Products industry, placing it in the top 0%.
Is Ecology and Combustion's Piotroski F-Score too high?
Ecology and Combustion's current Piotroski F-Score of 9 is 29% above median its 10-year median of 7.00. Over the past 10 years, this metric has ranged from a low of 5.00 to a high of 9.00. The Industrial Products industry median Piotroski F-Score is 5.00. Ecology and Combustion's value of 9 is 80% above this industry median. Based on the distribution chart, Ecology and Combustion ranks #1 out of 2971 companies in the Industrial Products industry, which is in the top quartile — a strong position relative to peers. Overall, Ecology and Combustion has a GF Score™ of 37/100, reflecting its overall financial health beyond just this single metric.
How does Ecology and Combustion's Piotroski F-Score compare to GEV and ETN?
According to the Industrial Products industry distribution chart, Ecology and Combustion ranks #1 out of 2971 companies for Piotroski F-Score. This places Ecology and Combustion in the top 0% of its industry — outperforming the majority of peers. The industry median Piotroski F-Score is 5.00. Ecology and Combustion's value of 9 is 80% above this benchmark. Historically, Ecology and Combustion's own Piotroski F-Score has ranged from 5.00 to 9.00 over the past decade. While the company's 10-year median is 7.00 vs. the industry median of 5.00, Ecology and Combustion 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 Industrial Products company?
The median Piotroski F-Score among Industrial Products companies is 5.00, based on 2,971 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. Ecology and Combustion's current Piotroski F-Score of 9 is 80% 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 Ecology and Combustion and its competitors. For the Industrial Products 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. Ecology and Combustion's current Piotroski F-Score is 9, which is 29% above median its own 10-year median of 7.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Ecology and Combustion stock overvalued right now?
Ecology and Combustion (NGO:6225) has a current Piotroski F-Score of 9. The current Piotroski F-Score is 9, which is 29% above median its 10-year median of 7.00 and 80% above the Industrial Products industry median of 5.00. Ecology and Combustion's overall GF Score™ is 37/100 with 6 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 Ecology and Combustion (NGO:6225), the current Piotroski F-Score is 9 as of Jul. 13, 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.
Ecology and Combustion Inc is engaged in the development, design, manufacture and maintenance of heating equipment. It develops, design, manufacture, and maintain deodorizing equipment, aluminum melting/holding furnaces, drying furnaces, heat treatment furnaces, and burners.
37GF Score
Get the complete analysis for NGO:6225
Piotroski F-Score is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
NGO:6225 has been successfully added to your 
