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NISOURCE INC.
NI - Company ID 0001111711
Market cap$21.18 B
Rank#596
Filings2,530
Market capitalization of NISOURCE INC.
As of 2026-11-06, NISOURCE INC. (NI) has a market capitalization of $21.18 B, making it the #596 most valuable US-listed company.
Recent market cap readings
| Date | Market cap |
|---|---|
| 2026-11-06 | $21.18 B |
| 2026-11-05 | $21.32 B |
| 2026-11-04 | $21.72 B |
| 2026-11-03 | $21.40 B |
| 2026-11-02 | $21.53 B |
| 2026-11-01 | $21.37 B |
| 2026-10-31 | $21.37 B |
| 2026-10-30 | $21.37 B |
| 2026-10-29 | $21.49 B |
| 2026-10-28 | $21.04 B |
| 2026-10-27 | $20.90 B |
| 2026-10-26 | $20.83 B |
Market Cap of similar companies
Frequently asked questions
What is NISOURCE INC.'s market cap?
As of 2026-11-06, NISOURCE INC. (NI) has a market capitalization of $21.18 B, making it the #596 most valuable US-listed company.
Where does NISOURCE INC. rank by market cap?
NISOURCE INC. is the #596 largest US-listed company by market capitalization.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.