From $4B at launch to $135B today, US spot Bitcoin ETFs are the fastest-growing ETF category in history. Where the money came from, where it sits, and what slows it down.
The Centralised ETF Flow Intensity (CEFI) index normalises daily ETF flow across assets, fund concentration and historical context into one number you can actually compare.
Volume is how much the ETF was traded. Net flow is how much new capital actually entered. They measure different things — and reading them together is the whole skill.
A negative ETF flow day looks scary but rarely is what the headline implies. Here is how outflows actually translate to spot pressure — and the patterns to ignore.
Bitcoin ETF flow data is a live readout of institutional demand. Here is how to read daily inflows and outflows, what they actually move, and which patterns matter.
Detailed overview of the largest Bitcoin ETF funds: their features, fees, asset size and how to choose the right fund for investment.