Is National Grid plc (NGG) Overvalued?
We dive into why National Grid plc (NGG) could be considered overvalued on 2026-07-15, based on AAII’s Value Score and Grade.Rosalio Madrigal
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COMPANY SUMMARY
National Grid plc engages in the transmission and distribution of electricity and gas. It operates through UK Electricity Transmission, UK Electricity Distribution, New England, New York, National Grid Ventures, and Other segments. The UK Electricity Transmission segment provides electricity transmission networks in England and Wales. The UK Electricity Distribution segment offers electricity distribution services in East and West Midlands, Southwest of England, and South Wales. The New England segment provides electricity and gas supply and distribution, and high-voltage electricity transmission services in New England. The New York segment offers electricity and gas distribution, and electricity transmission services in New York. The National Grid Ventures segment provides transmission services through electricity interconnectors and LNG importation at the Isle of Grain. The Other segment engages in the leasing and sale of commercial property, as well as insurance activities in the United Kingdom. The company was founded in 1990 and is headquartered in London, the United Kingdom.
Commentary & Analysis
Is National Grid plc(NGG) Building Momentum?
With data as of July 3, 2025, we examine if National Grid plc(NGG) is consistently building momentum based on AAII's A+ Investor Momentum and Value Scores and Grades.Omar Beirat
Why National Grid plc’s (NGG) Stock Is Down 5.03%
As of Wednesday, July 02, National Grid plc’s NGG share price has dipped by 5.03%, which has investors questioning if this is right time to buy.Jenna Brashear
Which Is a Better Investment, Consolidated Edison, Inc. or National Grid plc Stock?
Learn more about whether Consolidated Edison, Inc. or National Grid plc is a better investment based on AAII's A+ Investor grades, which compare both companies' key financial metrics.Jenna Brashear
Which Is a Better Investment, National Grid plc or WEC Energy Group, Inc. Stock?
Learn more about whether National Grid plc or WEC Energy Group, Inc. is a better investment based on AAII's A+ Investor grades, which compare both companies' key financial metrics.Omar Beirat
Financial Summary
| Share Statistics | NGG | Industry Median |
Percentile (All Stocks) |
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| Market Cap (Mil) | $78,649.7 | $28,625.6 | 96% |
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| Shares Out (Mil) | 6,591.8 | 459.8 | 99% |
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| Institutional Ownership | 100.0% | 99.6% | 99% |
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| Float (Mil) | 4,929.2 | 487.3 | 98% |
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| Beta | 0.60 | 0.51 | 34% |
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| Avg Daily Volume (000s) | 770 | 1,343 | 66% |
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| Price Change (52-week) |
14.0% | 91.8% | 57% |
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| Growth | NGG | Industry Median |
Percentile (All Stocks) |
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| Sales (5yr) | 4.4% | 6.3% | 33% |
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| Net Income (5yr) | 13.6% | 8.8% | 60% |
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| EPS (5yr) | 6.2% | 6.1% | 40 |
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| Dividends (5yr) | (1.1%) | 3.8% | 72% |
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| Cash Flow (5yr) | (63.0%) | (15.8%) | 3% |
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| Estimates | Qtrly | Current Fiscal Year |
Next Fiscal Year |
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| # of Estimates | na | na | na | |
| Current EPS | na | na | na | |
| Month Ago EPS | na | na | na | |
| # Rev Up | na | na | na | |
| # Rev Down | na | na | na | |
| Three Months Ago EPS | na | na | na | |
| Year/Year Chg | na | na | na | |
| Financials | NGG | Industry Median |
Percentile (All Stocks) |
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| Sales (TTM) (Mil) | $23,355 | $11,439 | 92% |
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| Net Income (TTM) (Mil) | $4,280 | $1,217 | 96% |
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| EPS (TTM) | $0.865 | $2.600 | 59% |
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| Operating Cash Flow (TTM) (Mil) | $10,338 | $2,960 | 98% |
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| Net Cash Flow (TTM) (Mil) | ($1,282) | $0 | 3% |
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| Long-Term Debt (Q1) (Mil) | $57,530 | $21,281 | 98% |
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| Enterprise Value (Q1) (Mil) | $138,044 | $54,045 | 97% |
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| Valuation | NGG | Industry Median |
Percentile (All Stocks) |
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| P/B | 7.71 | 2.22 | 86% |
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| P/E | 93.4 | 21.9 | 92% |
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| Dividend Yield | 0.0% | 3.5% | 0% |
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| PEG (5yr hist) | 8.3 | 2.7 | 92% |
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| Ratios | NGG | Industry Median |
Percentile (All Stocks) |
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| Gross Margin | 100.0% | 40.2% | 96% |
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| Net Margin | 18.3% | 11.1% | 77% |
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| ROA | 3.0% | 2.6% | 62% |
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| ROE | 8.5% | 10.1% | 53% |
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| Liabilities to Assets | 63.7% | 71.0% | 58% |
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| F-Score | 5 | 6 | 51% |
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National Grid plc did not pass any screens on 7/30/2026.
