The market value of Bitcoin is approximately $1.2 trillion (the exact value fluctuates with the price and needs to be updated in real-time).

- Market capitalization calculation formula: Circulating supply × Price per Bitcoin.

- The circulating supply of Bitcoin is approximately 19.7 million coins (the maximum supply cap is 21 million coins).

2. Market share (dominance)

- Bitcoin accounts for 50%-55% of the total market capitalization of the entire cryptocurrency market; this ratio typically rises during bear markets and may slightly decrease during bull markets due to the rise of altcoins.

3. Comparison with other cryptocurrencies

- Second place: Ethereum (ETH) has a market value of approximately 1/3 of Bitcoin (around $400 billion).