What Is Bitcoin Dominance?

2026-09-10

Bitcoin dominance (BTC.D) is the percentage of the entire crypto market's total cap that belongs to Bitcoin. It measures how much capital is focused on Bitcoin versus other cryptocurrencies, and is a common gauge of market mood. This guide explains it.

How it's calculated and read

Bitcoin dominance = Bitcoin's market cap ÷ total crypto market cap × 100% [1]. Rising dominance usually means capital is favoring Bitcoin; falling dominance often means capital is rotating into altcoins. Higher dominance reflects stronger confidence in Bitcoin [2].

At a glance

Bitcoin dominance turns the entire crypto market into a single percentage: Bitcoin's market cap over the total crypto market cap, times 100%. A rising reading means capital is concentrating in Bitcoin, a falling one means it is moving into altcoins, and a high reading reflects stronger confidence in Bitcoin. The common use is gauging rotation, not forecasting price.

What it tells you

Many traders use dominance to sense market "rotation": when BTC.D rises, capital tends to concentrate in Bitcoin; when BTC.D falls, altcoins are often more active. It does not predict price, but it offers a view of market structure.

The bottom line

Bitcoin dominance measures Bitcoin's relative share of the whole crypto market, reflecting where capital is focused. It is a useful lens on rotation, but should not be your only input. To keep learning the fundamentals, follow more from Bitbase Academy.

Related market pages

Bitbase pages for the tokens named in this article:

BTC: View price · Spot market · Perpetual market

Disclaimer: This article is educational content from Bitbase Academy, provided for information only. It does not constitute investment, trading, tax, or financial advice. Written as of June 2026; refer to the latest official information.