Bitcoin Dominance: How to Use BTC.D as a Trading Indicator
Bitcoin dominance (BTC.D) measures Bitcoin's share of total crypto market cap. It is one of the most reliable macro indicators for rotating between BTC and altcoin positions.
Bitcoin dominance (BTC.D) tracks the percentage of total crypto market capitalization held in Bitcoin. When BTC.D rises, capital is concentrating in Bitcoin (risk-off within crypto). When BTC.D falls, capital is rotating from Bitcoin into altcoins (risk-on). It is a relative performance indicator, not a price predictor.
Historical BTC.D Patterns
- BTC.D above 60%: Bitcoin leads; altcoin performance lags; accumulate BTC
- BTC.D dropping from 60%: beginning of altcoin season rotation; shift to higher beta assets
- BTC.D below 40%: peak altcoin euphoria; historically near altcoin tops
- BTC.D rising from bottom: risk-off rotation back to BTC; reduce altcoin exposure
Practical Use Cases
- Rotate BTC→ETH when BTC.D breaks down through key support on the weekly chart
- Rotate ETH→altcoins when ETH/BTC ratio starts to rise (second-order rotation signal)
- Rotate altcoins→stablecoins when BTC.D forms a bottom and starts rising
- Use BTC.D in conjunction with total market cap trend — they often diverge at key turning points
Limitations
BTC.D is increasingly distorted by stablecoin market cap (USDT, USDC) growing as a percentage of total crypto. More accurate: track BTC.D excluding stablecoins, or track ETH.D and altcoin.D separately. No single indicator works in isolation — BTC.D is a useful macro lens, not a standalone trading system.