Ethereum's market capitalization is approximately $260 billion USD as of March 22, 2026, making it the second-largest cryptocurrency by market cap after Bitcoin. ETH's market dominance stands at approximately 10.7% of the total crypto market.

How Is ETH Market Cap Calculated?

Market capitalization for Ethereum is calculated by multiplying the current ETH price by the total circulating supply. With approximately 120.69 million ETH in circulation and a price near $2,118 USD, the resulting market cap is approximately $255–260 billion USD.

Unlike Bitcoin, which has a hard supply cap of 21 million BTC, Ethereum has no maximum supply limit. However, since Ethereum's transition to proof-of-stake (known as "The Merge"), ETH issuance has been significantly reduced, and the token has occasionally been deflationary — meaning more ETH was burned than created.

ETH vs Total Crypto Market Cap

The total cryptocurrency market capitalization is approximately $2.61 trillion USD. Ethereum's share of this total (its "dominance") is currently around 10.7%. Bitcoin's dominance is higher at 56.6%. This metric helps traders assess whether ETH is outperforming or underperforming relative to the broader market.

Historical ETH Market Cap Milestones

Ethereum's market cap first surpassed $1 billion USD in 2016. It crossed the $100 billion threshold in January 2018 during the first major crypto bull run, then reached its all-time high market cap of approximately $558 billion USD in November 2021 when ETH hit $4,946.