National GridNGGTF +4.54%74 OCF Margin % is 39.57% as of Mar. 2026, which is 15% above its 10-year median of 34.29. GuruFocus rates NGGTF with a GF Score™ of 74/100 and a GF Value™ of $9.67 (Significantly Overvalued). The stock has 5 warning signs investors should review. Among 499 Utilities - Regulated companies, National Grid ranks better than 87.78% on this metric.
The historical rank and industry rank for National Grid's OCF Margin % or its related term are showing as below:
NGGTF'
s OCF Margin % Range Over the Past 10 Years
Min: 28.92 Med: 34.29 Max: 44.26
Current: 44.3
During the past 13 years, the highest OCF Margin % of National Grid was 44.26%. The lowest was 28.92%. And the median was 34.29%.
NGGTF's OCF Margin % is ranked better than 87.78% of 499
companies
in the Utilities - Regulated industry
Industry Median: 18.61
vs NGGTF: 44.30
National Grid OCF Margin % Related Terms
National Grid OCF Margin % Historical Data
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The historical data trend for National Grid's OCF 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.
For the Utilities - Regulated Electric subindustry, National Grid's OCF Margin %, along with its competitors' market caps and OCF 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.
National Grid OCF Margin % vs Utilities - Regulated Industry
For the Utilities - Regulated industry and Utilities sector, National Grid's OCF Margin % distribution charts can be found below:
* The bar in red indicates where National Grid's OCF Margin % 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.
National Grid (NGGTF) has a OCF Margin % of 39.57% as of Mar. 2026. OCF Margin is the ratio of Cash Flow from Operations to Total Revenue. View historical data on National Grid and its competitors. This is 15% above median its historical median of 34.29. Over the past decade, National Grid's OCF Margin % has ranged from 28.92 to 44.26. According to the industry distribution chart, National Grid ranks #61 out of 499 companies in the Utilities - Regulated industry, placing it in the top 12.2%.
Is National Grid's OCF Margin % too high?
National Grid's current OCF Margin % of 39.57% is 15% above median its 10-year median of 34.29. Over the past 10 years, this metric has ranged from a low of 28.92 to a high of 44.26. The Utilities - Regulated industry median OCF Margin % is 18.61. National Grid's value of 39.57% is 112.6% above this industry median. Based on the distribution chart, National Grid ranks #61 out of 499 companies in the Utilities - Regulated industry, which is in the top quartile — a strong position relative to peers. Overall, National Grid has a GF Score™ of 74/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does National Grid's OCF Margin % compare to NEE and SO?
According to the Utilities - Regulated industry distribution chart, National Grid ranks #61 out of 499 companies for OCF Margin %. This places National Grid in the top 12% of its industry — outperforming the majority of peers. The industry median OCF Margin % is 18.61. National Grid's value of 39.57% is 112.6% above this benchmark. Historically, National Grid's own OCF Margin % has ranged from 28.92 to 44.26 over the past decade. While the company's 10-year median is 34.29 vs. the industry median of 18.61, National Grid 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 OCF Margin % for an Utilities - Regulated company?
The median OCF Margin % among Utilities - Regulated companies is 18.61, based on 499 companies in the industry. Companies in the top quartile (top 25%) have a OCF Margin % significantly above this median, while those in the bottom quartile fall well below. However, OCF Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. National Grid's current OCF Margin % of 39.57% is 112.6% 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 OCF Margin % mean?
A high OCF Margin % can signal that a stock is expensive relative to its fundamentals. OCF Margin is the ratio of Cash Flow from Operations to Total Revenue. View historical data on National Grid and its competitors. For the Utilities - Regulated industry, the median OCF Margin % is 18.61 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. National Grid's current OCF Margin % is 39.57%, which is 15% above median its own 10-year median of 34.29. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is National Grid stock overvalued right now?
Based on GuruFocus' analysis, National Grid (NGGTF) is currently considered Significantly Overvalued. The stock's GF Value™ is $9.67, compared to a current price of $16.56 — trading 71.2% above its estimated fair value. The current OCF Margin % is 39.57%, which is 15% above median its 10-year median of 34.29 and 112.6% above the Utilities - Regulated industry median of 18.61. National Grid's overall GF Score™ is 74/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is OCF Margin % calculated?
OCF Margin % is calculated from a company's financial statements. For National Grid (NGGTF), the current OCF Margin % is 39.57% as of Mar. 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 National Grid (NGGTF) Overvalued in 2026?
Based on GuruFocus' analysis, National Grid stock appears to be overvalued.
The current stock price of $16.56 is trading 71.2% above its estimated GF Value™ of $9.67.
GuruFocus considers National Grid to be Significantly Overvalued.
Key valuation signals for NGGTF:
OCF Margin %: 39.57% (15% above median its 10-year median of 34.29)
GF Value™: $9.67 vs. price of $16.56 (71.2% above fair value)
Industry Position: 112.6% above the Utilities - Regulated median (#61 of 499)
No single metric tells the full story. See the NGGTF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
National Grid owns and operates the electric transmission system in England and Wales. It sold the bulk of its UK gas transmission business in fiscal 2023 to fund the acquisition of PPL's UK power distribution assets. In the Northeastern United States, it serves electricity and gas customers combined in three states. It also owns regulated transmission electricity networks in the United States, metering services and merchant transmission lines in the UK.
74GF Score
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