Market Cap

Post Holdings, Inc. Market Capitalization:

$5.20 Billion

USD as of Jan. 1, 2026

business Post Holdings, Inc. Company Profile

Post Holdings, Inc. Main Stock Listing

NYSE: POST

Market Capitalization History of Post Holdings, Inc.

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

Yearly evolution of Post Holdings, Inc. market cap

Date Market Cap YoY Change
Jan. 1, 2026 $5.20 B -16.60%
Jan. 1, 2025 $6.23 B 13.28%
Jan. 1, 2024 $5.50 B -0.09%
Jan. 1, 2023 $5.51 B 37.88%
Jan. 1, 2022 $3.99 B 11.57%
Jan. 1, 2021 $3.58 B -9.30%
Jan. 1, 2020 $3.95 B 12.66%
Jan. 1, 2019 $3.50 B 22.66%
Jan. 1, 2018 $2.86 B -9.57%
Jan. 1, 2017 $3.16 B 43.04%
Jan. 1, 2016 $2.21 B 23.81%
Jan. 1, 2015 $1.78 B -11.73%
Jan. 1, 2014 $2.02 B 40.91%
Jan. 1, 2013 $1.43 B 40.96%
Jan. 1, 2012 $1.02 B

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

Stocks & Indices

Post Holdings, Inc. has the following listings and related stock indices.


Stock: NYSE: POST

Stock: XETR: 2PO

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.