Market Cap

Spire Inc. Market Capitalization:

$4.92 Billion

USD as of Jan. 1, 2026

business Spire Inc. Company Profile

Spire Inc. Main Stock Listing

NYSE: SR

Market Capitalization History of Spire Inc.

Market capitalizations are calculated from the opening stock price at the beginning of each month.

Top Competitors by Market Capitalization

Industry: Utilities—Regulated Gas
Company Market Cap (USD)
Naturgy Energy Group, SA $29.10 B
Atmos Energy Corporation $27.39 B
CenterPoint Energy, Inc. $25.29 B
Snam S.p.A. $22.25 B
NiSource Inc. $19.95 B
Sector: Utilities
Company Market Cap (USD)
NextEra Energy $168.55 B
Iberdrola, SA $146.18 B
Siemens Energy $123.41 B
Constellation Energy $114.42 B
Enel SpA $106.27 B

Yearly evolution of Spire Inc. market cap

Date Market Cap YoY Change
Jan. 1, 2026 $4.92 B 22.60%
Jan. 1, 2025 $4.01 B 18.32%
Jan. 1, 2024 $3.39 B -7.95%
Jan. 1, 2023 $3.68 B 9.39%
Jan. 1, 2022 $3.37 B 7.73%
Jan. 1, 2021 $3.12 B -27.43%
Jan. 1, 2020 $4.31 B 6.24%
Jan. 1, 2019 $4.05 B 19.35%
Jan. 1, 2018 $3.40 B 2.31%
Jan. 1, 2017 $3.32 B 1.66%
Jan. 1, 2016 $3.27 B 18.94%
Jan. 1, 2015 $2.75 B 17.15%
Jan. 1, 2014 $2.34 B 14.95%
Jan. 1, 2013 $2.04 B -4.18%
Jan. 1, 2012 $2.13 B 9.63%
Jan. 1, 2011 $1.94 B 17.79%
Jan. 1, 2010 $1.65 B -28.93%
Jan. 1, 2009 $2.32 B 34.41%
Jan. 1, 2008 $1.72 B 3.97%
Jan. 1, 2007 $1.66 B -0.43%
Jan. 1, 2006 $1.67 B 7.66%
Jan. 1, 2005 $1.55 B 1.85%
Jan. 1, 2004 $1.52 B 25.95%
Jan. 1, 2003 $1.21 B 2.07%
Jan. 1, 2002 $1.18 B 8.89%
Jan. 1, 2001 $1.09 B

Market capitalization is calculated from the opening stock price at the beginning of each year.

Spire Inc. Categories

United States languages Utilities languages Utilities—Regulated Gas
United States Utilities United States Utilities—Regulated Gas

Stocks & Indices

Spire Inc. has the following listings and related stock indices.


Stock: NYSE: SR

Stock: FSX: LGR

Stock: NYSE: SR.PR.A

What is a company's market capitalization?

The market capitalization of a company, more simply referred to as "market cap", is the total market value of a publicly traded company's outstanding shares. It is often considered as a key indicator of what a company is worth.