ETH vs BTC — market cap ratio chart

Every figure on this page was recomputed from the series as it stood on 2026-08-07, the date of its most recent observation.

The short answer

On 2026-08-07 Ethereum's market capitalization was 0.178 times Bitcoin's.

That reading is the 34th percentile of the 4,018 observations recorded since 2015-08-07.

The record high is 0.832, set on 2017-06-11; over the 28 days since 2026-07-10 the ratio moved +5.4%.

How to read this chart

The quoted ETH/BTC pair is a price ratio, and price ratios are sensitive to issuance: if one chain mints faster, the price ratio drifts even when nothing changes about relative value. The market cap ratio divides total value by total value, so it answers what share of Bitcoin's size Ethereum currently represents. The two lines usually agree in direction and disagree in level, and the gap between them is exactly the supply story.

Method and data

The chart and the three figures above are recomputed from OmniaChart's production data API, not copied from an earlier version of this page. The series is Ethereum's market capitalization divided by Bitcoin's market capitalization, built as one point per date the two sides share, which is why the observation count (4,018) is smaller than the calendar span. Coverage runs 2015-08-07 to 2026-08-07 — 11.0 years. The vertical axis is logarithmic, so equal distances are equal percentage moves. The window opens when Ethereum began trading. Anything earlier would divide by a market that had not launched.

If the underlying series stops updating, this page is not regenerated with old numbers: the generator refuses to write it. A dated figure is the only kind worth publishing.

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