National Grid (NGG) Inventory Average (2009 - 2025)
National Grid (NGG) posted Inventory Average of $794.4 million for Q3 2025, up 11.46% on a QoQ basis from $712.7 million in Q2 2025, and down 15.25% year-over-year from $937.4 million in Q3 2024.
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Analysis
National Grid (NGG) Inventory Average (2009 - 2025) Analysis & Trends
National Grid has reported Inventory Average for 17 years, with the latest figure at $794.4 million in Q3 2025.
- On a quarterly basis, Inventory Average fell 15.25% year-over-year to $794.4 million in Q3 2025; TTM through Sep 2025 was $794.4 million, a 15.25% decrease from a year earlier, with the FY2026 full-year figure at $744.0 million, down 15.45% from the prior year.
- Inventory Average was $794.4 million for Q3 2025 at National Grid, up from $712.7 million in the prior quarter.
- The five-year high for Inventory Average was $1.1 billion in Q4 2023, with the low at $638.7 million in Q1 2022.
- Average Inventory Average over 5 years is $908.5 million, with a median of $915.0 million recorded in 2022.
- The sharpest annual moves came in 2023 and 2025: Inventory Average surged 30.27% in 2023, then tumbled 31.96% in 2025.
- Over 5 years, Inventory Average stood at $654.5 million in 2021, then jumped by 33.2% to $871.9 million in 2022, then grew by 29.57% to $1.1 billion in 2023, then slipped by 16.21% to $946.5 million in 2024, then slipped by 16.07% to $794.4 million in 2025.
- The last three Inventory Average figures came in at $794.4 million (Q3 2025), $712.7 million (Q2 2025), and $882.1 million (Q1 2025), per Business Quant data.
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Inventory Avg. (Qtr) |
|---|---|---|---|---|---|
| 1 | Enel Chile | 306.41 Bn | 306.41 Bn | 890.00 Mn | - |
| 2 | National Grid | 79.91 Bn | 76.14 Bn | - | - |
| 3 | Dominion Energy | 54.94 Bn | 58.84 Bn | 3.50 Bn | 1.97 Bn |
| 4 | Xcel Energy | 44.99 Bn | 42.98 Bn | 3.12 Bn | 727.00 Mn |
| 5 | Wec Energy | 33.53 Bn | 33.88 Bn | 1.45 Bn | 678.45 Mn |
| 6 | Ameren | 28.13 Bn | 28.25 Bn | - | 766.50 Mn |
| 7 | Fortis | 27.32 Bn | 28.61 Bn | 1.60 Bn | 480.60 Mn |
| 8 | American Water Works Company | 26.60 Bn | 26.40 Bn | 874.00 Mn | - |
| 9 | Atmos Energy | 26.60 Bn | 26.07 Bn | - | - |
| 10 | Firstenergy | 25.89 Bn | 27.19 Bn | 2.51 Bn | 570.50 Mn |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Sep 30, 2025 | 794.41 Mn |
| May 15, 2025 | 712.71 Mn |
| Mar 31, 2025 | 882.14 Mn |
| Dec 31, 2024 | 946.50 Mn |
| Sep 30, 2024 | 937.40 Mn |
| May 23, 2024 | 1.05 Bn |
| Mar 31, 2024 | 1.07 Bn |
| Dec 31, 2023 | 1.13 Bn |
| Sep 30, 2023 | 1.13 Bn |
| May 18, 2023 | 1.07 Bn |
| Mar 31, 2023 | 832.08 Mn |
| Dec 31, 2022 | 871.87 Mn |
| Sep 30, 2022 | 915.02 Mn |
| Mar 31, 2022 | 638.73 Mn |
| Mar 31, 2021 | 654.55 Mn |
| Mar 31, 2020 | 592.72 Mn |
| Mar 31, 2019 | 527.61 Mn |
| Sep 30, 2018 | 523.93 Mn |
| Mar 31, 2018 | 540.35 Mn |
| Sep 30, 2017 | 556.46 Mn |
API Access
National Grid Inventory Average API
Pull this series into your own models, spreadsheets and apps with the Business Quant
Historical Metrics API. The request below matches the chart above — change the
frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.
https://data.businessquant.com/historic?slug=inventory-average&ticker=NGG&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "inventory-average", "ticker": "NGG", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()const res = await fetch("https://data.businessquant.com/historic?slug=inventory-average&ticker=NGG&period=max&api_key=YOUR_API_KEY");
const data = await res.json();