Bitcoin Dominance (BTC.D) is Bitcoin’s market capitalisation as a percentage of the total crypto market capitalisation used by the data provider. It measures relative market value, not how much cash has literally flowed into Bitcoin.

The distinction matters because market capitalisation can change without an equal amount of capital moving. Bitcoin can gain dominance in a falling market if it falls less than the rest, and lose dominance in a rally if other assets rise faster.

How Bitcoin Dominance is calculated

Formula. Bitcoin Market Cap ÷ Total Crypto Market Cap × 100.

The denominator depends on the provider’s eligible asset universe and circulating-supply estimates. Stablecoins, wrapped assets and newly listed tokens may be included or excluded differently, so two BTC.D charts can disagree.

Why the denominator matters

If a provider includes stablecoins, an increase in their market value can lower Bitcoin’s share even when Bitcoin itself is unchanged. That does not prove capital rotated out of Bitcoin.

Newly tracked assets add to the denominator only when their circulating market value is included. Over long periods, changes to listings and methodology make direct historical comparison less clean.

How to read it with price

Rising dominance with Bitcoin outperforming a falling market is consistent with a defensive rotation, while falling dominance during a broad rally is consistent with risk spreading into altcoins.

“Consistent with” is the right standard. Dominance alone cannot trace capital flows; combine it with total market value, BTC returns, breadth and stablecoin supply.

How to read it

Bitcoin gaining share. Bitcoin’s market value is outperforming the provider’s non-Bitcoin universe.

Stable share. Bitcoin and the rest of the measured market are changing at similar rates.

Bitcoin losing share. The measured non-Bitcoin market is outperforming Bitcoin.

Provider check. Confirm whether stablecoins and wrapped assets are inside the denominator before comparing charts.

Bitcoin Dominance updates daily inside the Relative Performance dashboard, beside breadth and rotation views.

Common questions

Does rising dominance mean Bitcoin’s price is rising?

No. It means Bitcoin is outperforming the rest of the measured market. Both sides can still be falling.

Do stablecoins affect BTC.D?

They do when the provider includes their market value in total crypto market cap. Check the chart methodology.

Do new listings dilute Bitcoin automatically?

Only when the provider adds their circulating market value to the denominator. Listing and supply methodology therefore matter over long histories.

Does falling dominance prove money moved into altcoins?

No. It shows relative market-value change. Breadth, trading flows and total market value provide stronger evidence of rotation.

Can I compare two BTC.D providers?

Only after checking their asset universe, supply rules and treatment of stablecoins and wrapped tokens.