Nisource (NI) Market Capitalization (2009 - 2026)
Nisource (NI) posted Market Capitalization of $18.7 billion for Q3 2026, down 9.5% from $20.66 billion a year earlier and down 18.0% from the prior quarter.
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Analysis
Nisource (NI) Market Capitalization (2009 - 2026) Analysis & Trends
For FY2025, Nisource's Market Capitalization came in at $19.98 billion, up 15.7% from FY2024.
- Annual Market Capitalization has increased for five consecutive years, with a five-year compound annual growth rate of 17.3% (FY2020 to FY2025).
- In prior years, Nisource's Market Capitalization was $17.27 billion in FY2024 (+45.4%), $11.88 billion in FY2023 (+5.1%), $11.3 billion in FY2022 (+1.0%) and $11.19 billion in FY2021 (+24.5%).
- The Q3 2026 figure stands as the lowest quarterly Market Capitalization since Q4 2024.
- On a year-over-year basis, Market Capitalization increased in seven of the last eight quarters, with growth averaging 27.1%.
- The strongest year-over-year quarter for Market Capitalization in the past five years was Q3 2024, with growth of 58.5%; the weakest was Q1 2023, with a decline of 10.5%.
- According to Business Quant data, Market Capitalization for the three prior quarters was $22.8 billion (Q2 2026), $22.37 billion (Q1 2026) and $19.98 billion (Q4 2025).
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) |
|---|---|---|---|---|
| 1 | Enel Chile | 299.49 Bn | 296.88 Bn | - |
| 2 | Nextera Energy | 179.92 Bn | 166.66 Bn | - |
| 3 | Southern | 105.56 Bn | 96.61 Bn | 5.92 Bn |
| 4 | Duke Energy | 99.44 Bn | 95.69 Bn | 5.66 Bn |
| 5 | National Grid | 82.69 Bn | 64.32 Bn | - |
| 6 | American Electric Power | 68.52 Bn | 66.31 Bn | 4.75 Bn |
| 7 | Dominion Energy | 59.67 Bn | 57.66 Bn | - |
| 8 | Entergy | 52.06 Bn | 38.50 Bn | - |
| 9 | Sempra | 51.32 Bn | 50.45 Bn | 2.89 Bn |
| 10 | Nisource | 21.54 Bn | 21.23 Bn | 1.14 Bn |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Sep 30, 2026 | 18.70 Bn |
| Jun 30, 2026 | 22.80 Bn |
| Mar 31, 2026 | 22.37 Bn |
| Dec 31, 2025 | 19.98 Bn |
| Sep 30, 2025 | 20.66 Bn |
| Jun 30, 2025 | 18.99 Bn |
| Mar 31, 2025 | 18.87 Bn |
| Dec 31, 2024 | 17.27 Bn |
| Sep 30, 2024 | 16.17 Bn |
| Jun 30, 2024 | 12.92 Bn |
| Mar 31, 2024 | 12.40 Bn |
| Dec 31, 2023 | 11.88 Bn |
| Sep 30, 2023 | 10.20 Bn |
| Jun 30, 2023 | 11.30 Bn |
| Mar 31, 2023 | 11.55 Bn |
| Dec 31, 2022 | 11.30 Bn |
| Sep 30, 2022 | 10.23 Bn |
| Jun 30, 2022 | 11.97 Bn |
| Mar 31, 2022 | 12.90 Bn |
| Dec 31, 2021 | 11.19 Bn |
API Access
Nisource Market Capitalization 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=market-capitalization&ticker=NI&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "market-capitalization", "ticker": "NI", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()const res = await fetch("https://data.businessquant.com/historic?slug=market-capitalization&ticker=NI&period=max&api_key=YOUR_API_KEY");
const data = await res.json();