Bitcoin Dominance

It is calculated by dividing bitcoin’s market cap by the total market cap of all digital assets. This metric has become a fundamental part of crypto market analysis. Crypto traders monitor bitcoin dominance to track how capital is rotating through the market. During risk-on periods, capital flows out of BTC and into altcoins, bringing bitcoin dominance down; when markets turn bearish, the inverse is typically true.

Although volatile, bitcoin is historically the least volatile of all cryptocurrencies. Smaller altcoins can offer amplified upside, but also greater downside risk during periods of market uncertainty. As a result, the flow of capital between bitcoin and the wider crypto market can be used as an indicator of sentiment.

Broadly speaking, when investors are fearful, they choose the relative safety of BTC; when investors are greedy, they choose the speculative potential of altcoins. These shifts are represented by dominance rising or dropping, respectively. When bitcoin dominance drops to historical lows — usually below 40% — this usually signals an “altcoin season” is underway: a market phase where a large amount of capital has rotated out of BTC, meaning greater upside volatility in altcoin markets.

Bitcoin dominance readings can be somewhat misleading, given the massive growth of stablecoins like USDC and USDT in recent years. The rise of these dollar-pegged assets can artificially shrink bitcoin dominance, since they are grouped with the speculative altcoin market. To account for this, analysts nowadays often exclude stablecoins from their readings to get a clearer picture of authentic capital rotation.

Bitcoin dominance may also naturally tend lower over time as the market matures and diversifies. Regardless, this metric remains an invaluable part of any analyst's toolbox when navigating the crypto markets.