When did NI join the S&P 500?

NiSource joined the S&P 500 index on 2000-11-02.

What sector is NI in?

NI is in the Utilities sector, Multi-Utilities industry.

NI — NiSource

Name: NI Institutional Holdings (13F) — 2026Q1
Creator: SEC EDGAR
License: https://www.sec.gov/data

Multi-Utilities · Utilities

Nisoc Co. is a holding company providing energy solutions. It operates through its natural gas distribution and electric operations segments. The natural gas distribution segment provides natural gas services and transportation to residential, commercial, and industrial customers. The electric operations segment includes power generation, transmission and distribution through NIPSCO, as well as wholesale power and transmission trading.

Industry Peers

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Sector Peers

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Key Facts

Status	Active
Sector	Utilities
Industry	Multi-Utilities
Joined	2000-11-02
Tenure	25 yrs

S&P 500 Timeline

2000-11-02Joined S&P 500

Institutional Holdings (13F)

879 institutions hold NI, totaling 559.6M shares ($22.1B) · As of 2026Q1

Rank	Institution	Shares	Value
1	VANGUARD CAPITAL MANAGEMENT LLC	62.3M	$2.9B
2	BlackRock, Inc.	51.5M	$2.4B
3	BARCLAYS PLC	56.2M	$1.7B
4	STATE STREET CORP	27.1M	$1.3B
5	VANGUARD PORTFOLIO MANAGEMENT LLC	27.0M	$1.3B
6	MORGAN STANLEY	14.7M	$650M
7	GEODE CAPITAL MANAGEMENT, LLC	12.6M	$586M
8	DEUTSCHE BANK AG\	11.7M	$547M
9	FMR LLC	9.2M	$430M
10	JENNISON ASSOCIATES LLC	9.2M	$430M

View all holders →

Data source: Wikipedia · CC BY-SA 4.0 · SEC EDGAR 13F · Updated 2026-07-10