$BTC Bitcoin Dominance refers to the percentage of the total cryptocurrency market capitalization that is made up of Bitcoin. It is a metric used to gauge Bitcoin's strength relative to the rest of the crypto market.

📊 Formula:

\text{Bitcoin Dominance} = \left( \frac{\text{Market Cap of Bitcoin}}{\text{Total Market Cap of All Cryptocurrencies}} \right) \times 100

✅ Why Bitcoin Dominance Matters:

Market Sentiment Indicator:

High dominance (>50%): Investors favor Bitcoin over altcoins, often during market uncertainty.

Low dominance (<40%): Interest shifts toward altcoins (Ethereum, Solana, etc.), often during bullish or speculative phases.

Altseason Predictor:

When BTC dominance falls while total market cap rises, it's often an early signal of “Altseason”, where altcoins outperform BTC.

Portfolio Strategy:

Traders use BTC dominance in technical analysis to shift allocations between Bitcoin and altcoins.

🔁 Example:

Bitcoin market cap: $900 billion

Total crypto market cap: $1.8 trillion

Dominance: