Hydro One Limited
Hydro One Limited (H.TO) Market Cap & Net Worth
Live market cap, enterprise value, and global rank — multi-year chart and annual table below.
h.to · market cap & enterprise value · FMP · as of Jun 5, 2026
Core market cap & key metrics
As of Jun 5, 2026, Hydro One Limited (H.TO) has a market cap — also referred to as its net worth or valuation — of $34.2B, making it one of the top most valuable companies globally. Market Cap = $56.97 × shares outstanding.
Market cap history — by year
* 2026 = year-to-date · Year-end market cap · Source: FMP
Market cap by year
Compared to Peers
View Utilities sectorAbout Market Cap, Net Worth & Valuation
Hydro One Limited (H.TO) has a market cap — also referred to as its net worth or valuation — of $34.2B as of Jun 5, 2026, making it the #0 most valuable company globally. Market Cap = Stock Price × Shares Outstanding.
Hydro One Limited reached its all-time high market cap of $34.6B on Mar 16, 2026. Comparing the Hydro One Limited market cap history illustrates one of the most extraordinary corporate growth stories.
Investors frequently compare Hydro One Limited net worth vs peers and ask how Hydro One Limited valuation compares to other countries. Its market cap reflects continued investor confidence.
Frequently Asked Questions
H.TO market cap · 6 questionsHydro One Limited's net worth — measured as market capitalization — is $34.2B as of Jun 5, 2026. It ranks #0 globally. Market Cap = $$56.97 (price) × shares outstanding.