Bitcoin Dominance Explained $BTC

Bitcoin Dominance (BTC.D) measures Bitcoin's share of the total cryptocurrency market capitalization.

Formula:
BTC Dominance = Bitcoin Market Cap ÷ Total Crypto Market Cap × 100
📈 If BTC.D rises: Bitcoin is gaining market share compared with altcoins.

📉 If BTC.D falls: Altcoins are gaining market share, which can sometimes signal stronger altcoin performance.
Example: If Bitcoin has a $2T market cap and the entire crypto market is $4T, BTC dominance is 50%.

💡 Trading takeaway: BTC.D can help you understand whether capital is flowing toward Bitcoin or the broader altcoin market—but it should be used alongside price action, volume, and market conditions.
Simple rule:

🟠 Rising BTC.D → BTC stronger relative to alts
🔵 Falling BTC.D → Alts stronger relative to BTC
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