NiSource Inc (NYSE:NI) — Market Cap & Net Worth

$22.21 Billion USD  · Rank #1184

Market Cap & Net Worth: NiSource Inc (NI)

NiSource Inc (NYSE:NI) has a market capitalization of $22.21 Billion ($22.21 Billion) as of June 20, 2026. Listed on the NYSE stock exchange, this USA-based company holds position #1184 globally and #482 in its home market, demonstrating a 1.35% increase in market value over the past year.

Market capitalization, also known as net worth in stock markets, is calculated by multiplying NiSource Inc's stock price $47.26 by its total outstanding shares 479439245 (479.44 Million). Review NI total debt and obligations to assess the company's total debt and financial obligations.

NiSource Inc Market Cap History: 2015 to 2026

NiSource Inc's market capitalization history from 2015 to 2026. Data shows growth from $6.99 Billion to $22.66 Billion (11.71% CAGR).

Index Memberships

NiSource Inc is a constituent of 2 market indices:

Index Total Market Cap Weight (%) Rank by Market Cap
Dow Jones Composite Average
DJA
$16.95 Trillion 0.13% #50 of 65
S&P 500 Index
GSPC
$61.74 Trillion 0.04% #345 of 503

Weight: NiSource Inc's market cap as a percentage of total index value. Rank: Position among all constituents by market cap.

NiSource Inc Market Cap to Earnings & Revenue Ratios Timeline

This chart shows how NiSource Inc's valuation ratios have evolved. The Price to Sales (P/S) ratio compares market cap to revenue, while the Price to Earnings (P/E) ratio compares market cap to net income. Lower values may indicate a more undervalued company relative to its financial performance.

Latest Price to Sales (P/S) Ratio

3.01x

NiSource Inc's market cap is 3.01 times its annual revenue

Industry average: 0.46x Higher than industry average

Latest Price to Earnings (P/E) Ratio

21.54x

NiSource Inc's market cap is 21.54 times its annual earnings

Industry average: 4.49x Higher than industry average

What These Ratios Tell Investors:

  • Price to Sales (P/S) Ratio: Shows how much investors are paying for each dollar of the company's sales. Lower P/S ratios may indicate undervaluation.
  • Price to Earnings (P/E) Ratio: Shows how much investors are paying for each dollar of the company's earnings. This is one of the most common valuation metrics.
  • Trends in these ratios over time can indicate changing investor sentiment about the company's future growth prospects.
  • Industry comparison provides context for whether the company is valued higher or lower than peers.
Year Market Cap (USD) Revenue (USD) Net Income (USD) P/S Ratio P/E Ratio
2016 $8.16 Billion $4.49 Billion $331.50 Million 1.82x 24.61x
2017 $9.73 Billion $4.87 Billion $128.50 Million 2.00x 75.73x
2018 $9.92 Billion $5.11 Billion -$50.60 Million 1.94x N/A
2019 $11.21 Billion $5.21 Billion $383.10 Million 2.15x 29.27x
2020 $9.54 Billion $4.68 Billion -$17.60 Million 2.04x N/A
2021 $11.91 Billion $4.90 Billion $584.90 Million 2.43x 20.36x
2022 $12.22 Billion $5.85 Billion $804.10 Million 2.09x 15.20x
2023 $12.28 Billion $5.51 Billion $714.30 Million 2.23x 17.20x
2024 $17.62 Billion $5.46 Billion $760.40 Million 3.23x 23.18x
2025 $20.02 Billion $6.64 Billion $929.50 Million 3.01x 21.54x

Competitor Companies of NI by Market Capitalization

Companies near NiSource Inc in the global market cap rankings as of June 20, 2026.

Key companies related to NiSource Inc by market ranking:

  • Atmos Energy Corporation (NYSE:ATO): Ranked #944 globally with a market cap of $28.39 Billion USD.
  • Naturgy Energy Group SA (MC:NTGY): Ranked #1081 globally with a market cap of $24.77 Billion USD ( €21.19 Billion EUR).
  • SNAM S.P.A. ADR 2 (F:SNM0): Ranked #1342 globally with a market cap of $19.32 Billion USD ( €16.52 Billion EUR).
  • Uniper SE (XETRA:UN0): Ranked #1359 globally with a market cap of $18.93 Billion USD ( €16.19 Billion EUR).
Market capitalization comparison (in billions USD)
Rank Company Symbol Market Cap Price
#944 Atmos Energy Corporation NYSE:ATO $28.39 Billion $170.11
#1081 Naturgy Energy Group SA MC:NTGY $24.77 Billion €28.62
#1342 SNAM S.P.A. ADR 2 F:SNM0 $19.32 Billion €13.30
#1359 Uniper SE XETRA:UN0 $18.93 Billion €47.30

NiSource Inc Historical Marketcap From 2015 to 2026

Between 2015 and today, NiSource Inc's market cap moved from $6.99 Billion to $ 22.66 Billion, with a yearly change of 11.71%.

Year Market Cap Change (%)
2026 $22.66 Billion +13.17%
2025 $20.02 Billion +13.60%
2024 $17.62 Billion +43.49%
2023 $12.28 Billion +0.48%
2022 $12.22 Billion +2.67%
2021 $11.91 Billion +24.75%
2020 $9.54 Billion -14.87%
2019 $11.21 Billion +13.03%
2018 $9.92 Billion +1.92%
2017 $9.73 Billion +19.28%
2016 $8.16 Billion +16.70%
2015 $6.99 Billion --

End of Day Market Cap According to Different Sources

On Jun 19th, 2026 the market cap of NiSource Inc was reported to be:

Source Market Cap
Yahoo Finance $22.21 Billion USD
MoneyControl $22.21 Billion USD
MarketWatch $22.21 Billion USD
marketcap.company $22.21 Billion USD
Reuters $22.21 Billion USD

Market cap values may vary slightly between sources due to differences in calculation methods, timing, and data refresh rates.

About NiSource Inc

NYSE:NI USA Utilities - Regulated Gas
Market Cap
$22.66 Billion
Market Cap Rank
#1184 Global
#482 in USA
Share Price
$47.26
Change (1 day)
+1.05%
52-Week Range
$39.00 - $48.50
All Time High
$48.50
About

NiSource Inc., an energy holding company, operates as a regulated natural gas and electric utility company in the United States. It operates in two segments, Columbia Operations and NIPSCO Operations. The company provides natural gas to residential, commercial, and industrial customers through approximately 37,300 miles of distribution main pipeline and the associated individual customer service … Read more