Nisource (NI) Interest Expenses (2009 - 2026)
Nisource's Interest Expenses came in at $199.2 million for Q2 2026, up 43.2% from $139.1 million a year earlier and up 4.0% from the prior quarter.
Nisource (NI) Interest Expenses (2009 - 2026) Analysis & Trends
Over the trailing twelve months to Jun 30, 2026, Nisource reported Interest Expenses of $757.9 million, up 39.4% year-over-year; for FY2025, it was $639 million, up 23.5% from FY2024.
- Interest Expenses has increased in each of the last four years, with a five-year compound annual growth rate of 11.5% (FY2020 to FY2025).
- Going back by year, Interest Expenses was $517.2 million in FY2024 (+5.6%), $489.6 million in FY2023 (+35.4%), $361.6 million in FY2022 (+6.0%) and $341.1 million in FY2021 (-8.0%).
- The Q2 2026 figure represents the highest quarterly Interest Expenses in data going back to Q2 2009.
- Year-over-year, Interest Expenses has increased for six consecutive quarters, with growth averaging 22.6% over the last eight quarters.
- The fastest year-over-year change in Interest Expenses over five years came in Q1 2026 (growth of 44.3%), and the weakest in Q3 2021 (a decline of 11.3%).
- Business Quant data shows NI's Interest Expenses at $191.6 million (Q1 2026), $187.3 million (Q4 2025) and $179.8 million (Q3 2025) in the three quarters before Q2 2026.
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Int Expense (Qtr) |
|---|---|---|---|---|---|
| 1 | Enel Chile | 292.57 Bn | 292.57 Bn | 890.00 Mn | -132.00 Mn |
| 2 | National Grid | 78.85 Bn | 60.37 Bn | - | - |
| 3 | Dominion Energy | 53.27 Bn | 55.95 Bn | - | 555.00 Mn |
| 4 | Xcel Energy | 44.01 Bn | 38.91 Bn | - | 443.00 Mn |
| 5 | Wec Energy | 32.84 Bn | 33.08 Bn | 1.51 Bn | 228.90 Mn |
| 6 | Ameren | 27.51 Bn | 27.59 Bn | - | 209.00 Mn |
| 7 | Fortis | 26.81 Bn | 27.29 Bn | 1.60 Bn | 279.77 Mn |
| 8 | Atmos Energy | 26.44 Bn | 25.21 Bn | 870.85 Mn | 33.14 Mn |
| 9 | American Water Works Company | 25.73 Bn | 25.14 Bn | - | 167.00 Mn |
| 10 | Nisource | 18.70 Bn | 20.67 Bn | 1.15 Bn | 199.20 Mn |
Historic Data
| Date | Value |
|---|---|
| Jun 30, 2026 | 199.20 Mn |
| Mar 31, 2026 | 191.60 Mn |
| Dec 31, 2025 | 187.30 Mn |
| Sep 30, 2025 | 179.80 Mn |
| Jun 30, 2025 | 139.10 Mn |
| Mar 31, 2025 | 132.80 Mn |
| Dec 31, 2024 | 137.00 Mn |
| Sep 30, 2024 | 134.60 Mn |
| Jun 30, 2024 | 129.30 Mn |
| Mar 31, 2024 | 116.30 Mn |
| Dec 31, 2023 | 141.00 Mn |
| Sep 30, 2023 | 129.20 Mn |
| Jun 30, 2023 | 110.50 Mn |
| Mar 31, 2023 | 108.90 Mn |
| Dec 31, 2022 | 101.80 Mn |
| Sep 30, 2022 | 91.60 Mn |
| Jun 30, 2022 | 84.50 Mn |
| Mar 31, 2022 | 83.70 Mn |
| Dec 31, 2021 | 87.60 Mn |
| Sep 30, 2021 | 84.40 Mn |
Nisource Interest Expenses 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=interest-expenses&ticker=NI&period=max&api_key=YOUR_API_KEY
import requests
url = "https://data.businessquant.com/historic"
params = {"slug": "interest-expenses", "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=interest-expenses&ticker=NI&period=max&api_key=YOUR_API_KEY");
const data = await res.json();