National Grid (CHIX:NGL) Financial Strength: 4 (As of Mar. 2026) — 33% Above Median

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Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
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CHIX:NGL National Grid PLC CHIX:NGL
70 GF Score
Price £11.84
GF Value £7.57
Valuation Significantly Overvalued
! 4 Warning Signs
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What is National Grid Financial Strength?

National Grid CHIX:NGL 70 Financial Strength is 4 as of Mar. 2026, which is 33% above its 10-year median of 3.00. GuruFocus rates CHIX:NGL with a GF Score™ of 70/100 and a GF Value™ of £7.57 (Significantly Overvalued). The stock has 4 warning signs investors should review.

National Grid has the Financial Strength Rank of 4.

GuruFocus Financial Strength Rank measures how strong a company's financial situation is. It is rated on a scale of 1 to 10 and is based on these factors:

1. The debt burden that the company has as measured by its Interest Coverage (current year). The higher, the better.
2. Debt to revenue ratio. The lower, the better.
3. Altman Z-Score.
4. Other debt related ratios.

A higher score indicates a stronger financial position, with companies rated 7 or above considered financially stable and unlikely to face distress. Conversely, a score of 3 or below suggests potential financial difficulties, indicating a higher risk of distress.

National Grid's Interest Coverage for the quarter that ended in Mar. 2026 was 5.33. National Grid's debt to revenue ratio for the quarter that ended in Mar. 2026 was 2.20. As of today, National Grid's Altman Z-Score is 1.37.


National Grid  (CHIX:NGl) Financial Strength Explanation

The rank is rated on a scale of 1 to 10. A higher score indicates a stronger financial position, with companies rated 7 or above considered financially stable and unlikely to face distress. Conversely, a score of 3 or below suggests potential financial difficulties, indicating a higher risk of distress.

National Grid has the Financial Strength Rank of 4.


National Grid Financial Strength Related Terms


CHIX:NGL vs NEE, SO, DUK: Financial Strength Comparison

For the Utilities - Regulated Electric subindustry, National Grid's Financial Strength, along with its competitors' market caps and Financial Strength 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 Financial Strength vs Utilities - Regulated Industry

For the Utilities - Regulated industry and Utilities sector, National Grid's Financial Strength distribution charts can be found below:

* The bar in red indicates where National Grid's Financial Strength falls into.


CHIX:NGL
70GF Score
National Grid PLC CHIX:NGL
Financial Strength is just one metric. See GF Score™, valuation, warning signs, and more.
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National Grid Financial Strength Calculation

GuruFocus Financial Strength Rank measures how strong a company's financial situation is. It is based on these factors

A company ranks high with financial strength is likely to withstand any business slowdowns and recessions.

1. The debt burden that the company has as measured by its Interest Coverage (current year). The higher, the better.

Note: If both Interest Expense and Interest Income are empty, while Net Interest Income is negative, then use Net Interest Income as Interest Expense.

Interest Coverage is a ratio that determines how easily a company can pay interest expenses on outstanding debt. It is calculated by dividing a company's Operating Income (EBIT) by its Interest Expense:

National Grid's Interest Expense for the months ended in Mar. 2026 was £-765 Mil. Its Operating Income for the months ended in Mar. 2026 was £4,075 Mil. And its Long-Term Debt & Capital Lease Obligation for the quarter that ended in Mar. 2026 was £42,855 Mil.

National Grid's Interest Coverage for the quarter that ended in Mar. 2026 is

Interest Coverage=-1*Operating Income (Q: Mar. 2026 )/Interest Expense (Q: Mar. 2026 )
=-1*4075/-765
=5.33

The higher the ratio, the stronger the company's financial strength is.

2. Debt to revenue ratio. The lower, the better.

National Grid's Debt to Revenue Ratio for the quarter that ended in Mar. 2026 is

Debt to Revenue Ratio=Total Debt (Q: Mar. 2026 ) / Revenue
=(Short-Term Debt & Capital Lease Obligation + Long-Term Debt & Capital Lease Obligation) / Revenue
=(3900 + 42855) / 21244
=2.20

3. Altman Z-Score.

Z-Score model is an accurate forecaster of failure up to two years prior to distress. It can be considered the assessment of the distress of industrial corporations.

The zones of discrimination were as such:

When Z-Score is less than 1.81, it is in Distress Zones.
When Z-Score is greater than 2.99, it is in Safe Zones.
When Z-Score is between 1.81 and 2.99, it is in Grey Zones.

National Grid has a Z-score of 1.37, indicating it is in Distress Zones. This implies bankrupcy possibility in the next two years.

Warning Sign:

Altman Z-score of 1.37 is in distress zone. This implies bankruptcy possibility in the next two years.

* 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 Financial Strength →
What does a Financial Strength of 4 mean?
National Grid (CHIX:NGL) has a Financial Strength of 4 as of Mar. 2026. The financial strength rank measures the strength of a company's balance sheet based on revenue and debt. View historical data on National Grid and its competitors. This is 33% above median its historical median of 3.00. Over the past decade, National Grid's Financial Strength has ranged from 3.00 to 4.00.
Is National Grid's Financial Strength too high?
National Grid's current Financial Strength of 4 is 33% above median its 10-year median of 3.00. Over the past 10 years, this metric has ranged from a low of 3.00 to a high of 4.00. Overall, National Grid has a GF Score™ of 70/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does National Grid's Financial Strength compare to NEE and SO?
National Grid's Financial Strength of 4 can be compared against companies in the Utilities - Regulated industry. Historically, National Grid's own Financial Strength has ranged from 3.00 to 4.00 over the past decade. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Financial Strength for an Utilities - Regulated company?
A good Financial Strength depends on the Utilities - Regulated industry context. However, Financial Strength 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 Financial Strength mean?
A high Financial Strength can signal that a stock is expensive relative to its fundamentals. The financial strength rank measures the strength of a company's balance sheet based on revenue and debt. View historical data on National Grid and its competitors. National Grid's current Financial Strength is 4, which is 33% above median its own 10-year median of 3.00. 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 (CHIX:NGL) is currently considered Significantly Overvalued. The stock's GF Value™ is £7.57, compared to a current price of £11.84 — trading 56.3% above its estimated fair value. The current Financial Strength is 4, which is 33% above median its 10-year median of 3.00. National Grid's overall GF Score™ is 70/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Financial Strength calculated?
Financial Strength is calculated from a company's financial statements. For National Grid (CHIX:NGL), the current Financial Strength is 4 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 (CHIX:NGL) Overvalued in 2026?

Based on GuruFocus' analysis, National Grid stock appears to be overvalued. The current stock price of £11.84 is trading 56.3% above its estimated GF Value™ of £7.57. GuruFocus considers National Grid to be Significantly Overvalued.

Key valuation signals for CHIX:NGL:

  • Financial Strength: 4 (33% above median its 10-year median of 3.00)
  • GF Value™: £7.57 vs. price of £11.84 (56.3% above fair value)
  • GF Score™: 70/100 with 4 warning signs

No single metric tells the full story. See the CHIX:NGL stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


National Grid Business Description

Address 1-3 Strand, London, GBR, WC2N 5EH
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.
70GF Score

Get the complete analysis for CHIX:NGL

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

£11.84
Price
£7.57
GF Value