Methodology

All crypto indices derive from a single constituent set — the top 125 crypto assets by market cap (TOTAL) — and follow a published, auditable calculation.

Index	Full Name	Calculation	Quote Format
BTC.D	Bitcoin Dominance Index	BTC Market Cap / TOTAL	Decimal, 4 places
TOTAL2	Total Crypto Market Cap ex-BTC	TOTAL − BTC	Billions ($0000.000B)
OTHERS	Total Crypto Market Cap ex-Top 10	TOTAL − Top 10	Billions ($000.000B)

• Weighting: market-cap weighted across the constituent set.
• Rebalancing: daily, on a published schedule.

Market-cap indices (TOTAL2, OTHERS): Index = Σ (Price_i × CirculatingSupply_i), with prices aggregated in USD.

Dominance indices (BTC.D): BTC.D = BTC Market Cap / TOTAL, expressed as a decimal to four places.

Circulating supply: aggregated from multiple industry vendors.