NGG (National Grid) Change In Working Capital: $766 Mil (TTM As of Mar. 2026)

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NGG National Grid PLC NGG
72 GF Score
Price $78.12
GF Value $51.46
Valuation Significantly Overvalued
! 4 Warning Signs
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What is National Grid Change In Working Capital?

National Grid NGG -0.06% 72 Change In Working Capital is $766 Mil as of Mar. 2026. GuruFocus rates NGG with a GF Score™ of 72/100 and a GF Value™ of $51.46 (Significantly Overvalued). The stock has 4 warning signs investors should review.

National Grid's change in working capital for the quarter that ended in Mar. 2026 was $-501 Mil.

National Grid's change in working capital for the fiscal year that ended in Mar. 2026 was $749 Mil.

It is calculated by adding the items under "Change in operating assets and liabilities" (may refer to a different name for different company) section in Cash Flow Statement. Not by calculating the number changes in each periods' working capital (Total Current Assets minus Total Current Liabilities).


National Grid Change In Working Capital Related Terms


National Grid Change In Working Capital Historical Data

* Premium members only.

The historical data trend for National Grid's Change In Working Capital 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.

National Grid Change In Working Capital Chart

National Grid Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Change In Working Capital
Get a 7-Day Free Trial Premium Member Only Premium Member Only -208.17 319.18 919.95 -435.40 749.33

National Grid Semi-Annual Data
Sep16 Mar17 Sep17 Mar18 Sep18 Mar19 Sep19 Mar20 Sep20 Mar21 Sep21 Mar22 Sep22 Mar23 Sep23 Mar24 Sep24 Mar25 Sep25 Mar26
Change In Working Capital Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 684.88 559.52 -981.91 1,267.57 -501.33
NGG
72GF Score
National Grid PLC NGG
Change In Working Capital is just one metric. See GF Score™, valuation, warning signs, and more.
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National Grid Change In Working Capital Calculation

Change In Working Capital for the trailing twelve months (TTM) ended in Mar. 2026 adds up the semi-annually data reported by the company within the most recent 12 months, which was $766 Mil.

Working Capital is a measure of a company's short term liquidity or its ability to cover short term liabilities. It is defined as the difference between a company's current assets and current liabilities.

Changes in Working Capital is reported in the cash flow statement since it is one of the major ways in which net income can differ from operating cash flow. It is calculated by adding the items under "Change in operating assets and liabilities" (may refer to a different name for different company) section in Cash Flow Statement.

Use Wal-Mart Stores Inc (Jan 2014, Annual Data) as an example: Source: Wal-Mart Stores Inc 2014-01-31 10-K from SEC

Consolidated Statements of Cash Flows Fiscal Years EndedJanuary 31,(Amounts in millions)
Cash flows from operating activities: 2014 2013 2012
Changes in certain assets and liabilities, net of effects of acquisitions:
Receivables, net (566) (614) (796)
Inventories (1,667) (2,759) (3,727)
Accounts payable 531 1,061 2,687
Accrued liabilities 103 271 (935)
Accrued income taxes (1,224) 981 994

For 2014-01-31, add all the items under 2014 collum together, Change in Working Capital was (566) + (1,667) + 531 + 103 + (1,224) = $ (2,823) Mil.

* 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.

What does a Change In Working Capital of $766 Mil mean?
National Grid (NGG) has a Change In Working Capital of $766 Mil as of Mar. 2026. Change in Working Capital is the difference between current assets less current liabilities between the current period and the past period. View historical data for National Grid.
Is National Grid's Change In Working Capital too high?
National Grid's current Change In Working Capital is $766 Mil. Overall, National Grid has a GF Score™ of 72/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does National Grid's Change In Working Capital compare to NEE and SO?
National Grid's Change In Working Capital of $766 Mil can be compared against companies in the Utilities - Regulated industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Change In Working Capital for an Utilities - Regulated company?
A good Change In Working Capital depends on the Utilities - Regulated industry context. However, Change In Working Capital 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 Change In Working Capital mean?
A high Change In Working Capital can signal that a stock is expensive relative to its fundamentals. Change in Working Capital is the difference between current assets less current liabilities between the current period and the past period. View historical data for National Grid. National Grid's current Change In Working Capital is $766 Mil. 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 (NGG) is currently considered Significantly Overvalued. The stock's GF Value™ is $51.46, compared to a current price of $78.12 — trading 51.8% above its estimated fair value. The current Change In Working Capital is $766 Mil. National Grid's overall GF Score™ is 72/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Change In Working Capital calculated?
Change In Working Capital is calculated from a company's financial statements. For National Grid (NGG), the current Change In Working Capital is $766 Mil 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 (NGG) Overvalued in 2026?

Based on GuruFocus' analysis, National Grid stock appears to be overvalued. The current stock price of $78.12 is trading 51.8% above its estimated GF Value™ of $51.46. GuruFocus considers National Grid to be Significantly Overvalued.

Key valuation signals for NGG:

  • Change In Working Capital: $766 Mil
  • GF Value™: $51.46 vs. price of $78.12 (51.8% above fair value)
  • GF Score™: 72/100 with 4 warning signs

No single metric tells the full story. See the NGG 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.
72GF Score

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Change In Working Capital is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$78.12
Price
$51.46
GF Value