Hydro One Ltd (TO:H) — Market Cap & Net Worth

$22.56 Billion USD  · CA$31.18 Billion CAD  · Rank #1159

Market Cap & Net Worth: Hydro One Ltd (H)

Hydro One Ltd (TO:H) has a market capitalization of $22.56 Billion (CA$31.18 Billion) as of September 19, 2026. Listed on the TO stock exchange, this Canada-based company holds position #1159 globally and #43 in its home market, demonstrating a -1.46% decrease in market value over the past year.

Market capitalization, also known as net worth in stock markets, is calculated by multiplying Hydro One Ltd's stock price CA$51.96 by its total outstanding shares 600096020 (600.10 Million). Also see total assets of Hydro One Ltd for a full breakdown of the balance sheet.

Hydro One Ltd Market Cap History: 2015 to 2026

Hydro One Ltd's market capitalization history from 2015 to 2026. Data shows growth from $6.97 Billion to $22.56 Billion (11.72% CAGR). Also see H operating cash flow for how efficiently the company converts equity into cash flow.

Index Memberships

Hydro One Ltd is a constituent of 1 market index:

Index Total Market Cap Weight (%) Rank by Market Cap
S&P TSX Composite Index (Canada)
GSPTSE
$3.88 Trillion 0.58% #43 of 225

Weight: Hydro One Ltd's market cap as a percentage of total index value. Rank: Position among all constituents by market cap.

Hydro One Ltd Market Cap to Earnings & Revenue Ratios Timeline

This chart shows how Hydro One Ltd's valuation ratios have evolved. The Price to Sales (P/S) ratio compares market cap to revenue, while the Price to Earnings (P/E) ratio compares market cap to net income. Lower values may indicate a more undervalued company relative to its financial performance. Check H share price today for real-time trading data and today's change.

Latest Price to Sales (P/S) Ratio

2.62x

Hydro One Ltd's market cap is 2.62 times its annual revenue

Industry average: 0.24x Higher than industry average

Latest Price to Earnings (P/E) Ratio

17.71x

Hydro One Ltd's market cap is 17.71 times its annual earnings

Industry average: 1.56x Higher than industry average

What These Ratios Tell Investors:

  • Price to Sales (P/S) Ratio: Shows how much investors are paying for each dollar of the company's sales. Lower P/S ratios may indicate undervaluation.
  • Price to Earnings (P/E) Ratio: Shows how much investors are paying for each dollar of the company's earnings. This is one of the most common valuation metrics.
  • Trends in these ratios over time can indicate changing investor sentiment about the company's future growth prospects.
  • Industry comparison provides context for whether the company is valued higher or lower than peers.
Year Market Cap (USD) Revenue (USD) Net Income (USD) P/S Ratio P/E Ratio
2016 $7.67 Billion $6.55 Billion $740.00 Million 1.17x 10.37x
2017 $7.57 Billion $5.99 Billion $676.00 Million 1.26x 11.20x
2018 $7.16 Billion $6.15 Billion $796.00 Million 1.16x 9.00x
2019 $9.24 Billion $6.48 Billion $796.00 Million 1.43x 11.61x
2020 $10.95 Billion $7.29 Billion $1.79 Billion 1.50x 6.12x
2021 $13.02 Billion $7.22 Billion $965.00 Million 1.80x 13.49x
2022 $14.93 Billion $7.78 Billion $1.05 Billion 1.92x 14.22x
2023 $16.86 Billion $7.84 Billion $1.08 Billion 2.15x 15.54x
2024 $19.22 Billion $8.48 Billion $1.16 Billion 2.27x 16.62x
2025 $23.72 Billion $9.04 Billion $1.34 Billion 2.62x 17.71x

Competitor Companies of H by Market Capitalization

Companies near Hydro One Ltd in the global market cap rankings as of September 19, 2026. Review tangible net worth ratio of Hydro One Ltd to assess the quality of the company's equity after excluding intangible assets.

Key companies related to Hydro One Ltd by market ranking:

  • Nextera Energy Inc (NYSE:NEE): Ranked #136 globally with a market cap of $169.27 Billion USD.
  • Southern Company (NYSE:SO): Ranked #271 globally with a market cap of $95.53 Billion USD.
  • Duke Energy Corporation (NYSE:DUK): Ranked #286 globally with a market cap of $92.43 Billion USD.
  • National Grid PLC ADR (NYSE:NGG): Ranked #307 globally with a market cap of $86.46 Billion USD.
Market capitalization comparison (in billions USD)
Rank Company Symbol Market Cap Price
#136 Nextera Energy Inc NYSE:NEE $169.27 Billion $81.28
#271 Southern Company NYSE:SO $95.53 Billion $86.76
#286 Duke Energy Corporation NYSE:DUK $92.43 Billion $118.54
#307 National Grid PLC ADR NYSE:NGG $86.46 Billion $86.96

Hydro One Ltd Historical Marketcap From 2015 to 2026

Between 2015 and today, Hydro One Ltd's market cap moved from $6.97 Billion to $ 22.56 Billion, with a yearly change of 11.72%.

Year Market Cap Change (%)
2026 CA$22.56 Billion -4.90%
2025 CA$23.72 Billion +23.42%
2024 CA$19.22 Billion +13.96%
2023 CA$16.86 Billion +12.95%
2022 CA$14.93 Billion +14.72%
2021 CA$13.02 Billion +18.89%
2020 CA$10.95 Billion +18.48%
2019 CA$9.24 Billion +29.04%
2018 CA$7.16 Billion -5.41%
2017 CA$7.57 Billion -1.36%
2016 CA$7.67 Billion +10.12%
2015 CA$6.97 Billion --

End of Day Market Cap According to Different Sources

On Sep 18th, 2026 the market cap of Hydro One Ltd was reported to be:

Source Market Cap
Yahoo Finance $22.56 Billion USD
MoneyControl $22.56 Billion USD
MarketWatch $22.56 Billion USD
marketcap.company $22.56 Billion USD
Reuters $22.56 Billion USD

Market cap values may vary slightly between sources due to differences in calculation methods, timing, and data refresh rates.

About Hydro One Ltd

TO:H Canada Utilities - Regulated Electric
Market Cap
$22.56 Billion
CA$31.18 Billion CAD
Market Cap Rank
#1159 Global
#43 in Canada
Share Price
CA$51.96
Change (1 day)
+0.62%
52-Week Range
CA$48.86 - CA$60.19
All Time High
CA$60.19
About

Hydro One Limited operates as an electricity transmission and distribution company in Ontario. It operates through three segments: Transmission, Distribution, and Other. The company owns and operates approximately 30,000 circuit kilometers of high-voltage transmission lines and approximately 126,000 circuit kilometers primary low-voltage distribution lines. It provides telecommunications support … Read more