Natural Gas Services GroupNGS -2.70%78 PB Ratio is 1.93 as of Jun. 25, 2026, which is 119% above its 10-year median of 0.88. GuruFocus rates NGS with a GF Score™ of 78/100 and a GF Value™ of $28.22 (Significantly Overvalued). The stock has 8 warning signs investors should review. Among 923 Oil & Gas companies, Natural Gas Services Group ranks worse than 65.01% on this metric.
Natural Gas Services Group Inc stock PB Ratio (=1.98) is close to 10-year high of 1.98.
The historical rank and industry rank for Natural Gas Services Group's PB Ratio or its related term are showing as below:
NGS'
s PB Ratio Range Over the Past 10 Years
Min: 0.23 Med: 0.88 Max: 1.98
Current: 1.93
During the past 13 years, Natural Gas Services Group's highest PB Ratio was 1.98. The lowest was 0.23. And the median was 0.88.
NGS's PB Ratio is ranked worse than 65.01% of 923
companies
in the Oil & Gas industry
Industry Median: 1.44
vs NGS: 1.93
During the past 12 months, Natural Gas Services Group's average Book Value Per Share Growth Rate was 6.70% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was 5.10% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 2.90% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was 1.10% per year.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of Natural Gas Services Group was 46.70% per year. The lowest was -2.10% per year. And the median was 7.00% per year.
Back to Basics: PB Ratio
Natural Gas Services Group (NYSE:NGS) PB Ratio Explanation
The PB Ratio works the best for the businesses that earn most of their profit from their assets, e.g. banks and insurance companies.
Be Aware
Some businesses have very light assets, such as software companies or insurance agencies. The PB Ratio does not work well for these companies. Some companies even have negative equity, so the PB Ratio cannot be applied to them.
Natural Gas Services Group PB Ratio Related Terms
Natural Gas Services Group PB Ratio Historical Data
* 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.
For the Oil & Gas Equipment & Services subindustry, Natural Gas Services Group's PB Ratio, along with its competitors' market caps and 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.
Natural Gas Services Group PB Ratio vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Natural Gas Services Group's PB Ratio distribution charts can be found below:
* The bar in red indicates where Natural Gas Services Group's PB Ratio falls into.
The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. It is a ratio widely used to value stocks.
* 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.
It can also be calculated from the numbers for the whole company:
A closely related ratio is called Price-to-Tangible-Book. The difference between Price-to-Tangible-Book and PB Ratio is that book value other than intangibles are used in the calculation.
Natural Gas Services Group (NGS) has a PB Ratio of 1.93 as of Jun. 25, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Natural Gas Services Group and its competitors. This is 119% above median its historical median of 0.88. Over the past decade, Natural Gas Services Group's PB Ratio has ranged from 0.23 to 1.98. According to the industry distribution chart, Natural Gas Services Group ranks #600 out of 923 companies in the Oil & Gas industry, placing it in the top 65%.
Is Natural Gas Services Group's PB Ratio too high?
Natural Gas Services Group's current PB Ratio of 1.93 is 119% above median its 10-year median of 0.88. Over the past 10 years, this metric has ranged from a low of 0.23 to a high of 1.98. The Oil & Gas industry median PB Ratio is 1.44. Natural Gas Services Group's value of 1.93 is 34% above this industry median. Based on the distribution chart, Natural Gas Services Group ranks #600 out of 923 companies in the Oil & Gas industry, which is below the industry midpoint. Overall, Natural Gas Services Group has a GF Score™ of 78/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Natural Gas Services Group's PB Ratio compare to OIS and FET?
According to the Oil & Gas industry distribution chart, Natural Gas Services Group ranks #600 out of 923 companies for PB Ratio. This places Natural Gas Services Group in the lower half of its industry. The industry median PB Ratio is 1.44. Natural Gas Services Group's value of 1.93 is 34% above this benchmark. Historically, Natural Gas Services Group's own PB Ratio has ranged from 0.23 to 1.98 over the past decade. While the company's 10-year median is 0.88 vs. the industry median of 1.44, Natural Gas Services Group 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 PB Ratio for an Oil & Gas company?
The median PB Ratio among Oil & Gas companies is 1.44, based on 923 companies in the industry. Companies in the top quartile (top 25%) have a PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Natural Gas Services Group's current PB Ratio of 1.93 is 34% 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 PB Ratio mean?
A high PB Ratio can signal that a stock is expensive relative to its fundamentals. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Natural Gas Services Group and its competitors. For the Oil & Gas industry, the median PB Ratio is 1.44 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Natural Gas Services Group's current PB Ratio is 1.93, which is 119% above median its own 10-year median of 0.88. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Natural Gas Services Group stock overvalued right now?
Based on GuruFocus' analysis, Natural Gas Services Group (NGS) is currently considered Significantly Overvalued. The stock's GF Value™ is $28.22, compared to a current price of $42.94 — trading 52.2% above its estimated fair value. The current PB Ratio is 1.93, which is 119% above median its 10-year median of 0.88 and 34% above the Oil & Gas industry median of 1.44. Natural Gas Services Group's overall GF Score™ is 78/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is PB Ratio calculated?
PB Ratio is calculated from a company's financial statements. For Natural Gas Services Group (NGS), the current PB Ratio is 1.93 as of Jun. 25, 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 Natural Gas Services Group (NGS) Overvalued in 2026?
Based on GuruFocus' analysis, Natural Gas Services Group stock appears to be overvalued.
The current stock price of $42.94 is trading 52.2% above its estimated GF Value™ of $28.22.
GuruFocus considers Natural Gas Services Group to be Significantly Overvalued.
Key valuation signals for NGS:
PB Ratio: 1.93 (119% above median its 10-year median of 0.88)
GF Value™: $28.22 vs. price of $42.94 (52.2% above fair value)
Industry Position: 34% above the Oil & Gas median (#600 of 923)
No single metric tells the full story. See the NGS stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Natural Gas Services Group Inc provides natural gas compression equipment and services to the energy industry. The company manufactures, fabricates, rents, sells, and maintains natural gas compressors and flare systems for oil and natural gas production and plant facilities. Its operating units include Rental, Sales, and Aftermarket services. It operates in one reporting segment. The company generates the majority of its revenue by renting out low- to medium-horsepower compression equipment to natural gas production companies in unconventional oil and gas regions of the United States.
78GF Score
Get the complete analysis for NGS
PB Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
NGS has been successfully added to your 
