Market Cap

TransAlta Corporation Market Capitalization:

C$5.29 Billion

CAD as of Jan. 1, 2026

US$3.86 Billion

business TransAlta Corporation Company Profile

TransAlta Corporation Main Stock Listing

TSX: TA

Market Capitalization History of TransAlta Corporation

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

Top Competitors by Market Capitalization

Industry: Utilities—Independent Power Producers
Company Market Cap (USD)
Siemens Energy $123.41 B
China Yangtze Power Co. Ltd $95.15 B
Vistra Corp. $55.98 B
NRG Energy, Inc. $32.14 B
CGN Power Co. Ltd $27.14 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 TransAlta Corporation market cap

Date Market Cap YoY Change
Jan. 1, 2026 C$5.29 B -12.83%
Jan. 1, 2025 C$6.07 B 79.49%
Jan. 1, 2024 C$3.38 B 5.64%
Jan. 1, 2023 C$3.20 B -11.60%
Jan. 1, 2022 C$3.62 B

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

TransAlta Corporation Categories

Canada languages Utilities languages Utilities—Independent Power Producers
Canada Utilities Canada Utilities—Independent Power Producers

Stocks & Indices

TransAlta Corporation has the following listings and related stock indices.


Stock: TSX: TA

Stock: FSX: TZ1

Stock: OTC: TNSSF

Stock: OTC: TSLTF

Stock: TSX: TA.PR.D

Stock: TSX: TA.PR.E

Stock: TSX: TA.PR.F

Stock: TSX: TA.PR.H

Stock: NYSE: TAC

Stock: TSX: TA.PR.J

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.