ETF Methodology & Data Sources

This page explains how BBX compiles ETF tables and charts.

Universe

• US Spot Bitcoin/ETH ETFs; Hong Kong Bitcoin/ETH ETFs.

Data sources

• AICoin Market API (via unified /api/data proxy)
• Official issuer disclosures and exchange feeds where available

Update frequency

• Market table: ~1–5 minutes depending on upstream latency
• Flow/creation-redemption: end-of-day or as provided by issuers

Calculations

• Net flow = creations − redemptions
• AUM = holdings × reference price (see table footer for price source)

Notes

• Figures may differ from issuers due to timing and rounding.
• Corporate actions and ticker changes are harmonized periodically.