What it measures
Daily net flows into US spot Bitcoin ETFs — the pulse of institutional demand.
Bitcoin ETF flows measure the daily net dollars moving into or out of US spot Bitcoin ETFs — BlackRock’s IBIT, Fidelity’s FBTC and their peers. Since ETFs became the default institutional access route, this single number is the cleanest daily pulse of institutional demand for Bitcoin.
How to read it
One green or red day is noise — flows are lumpy and single large allocators can dominate a print. What matters is the streak and the cumulative direction: multi-week inflow runs have accompanied every sustained leg up since the ETFs launched, while persistent outflows mark institutional distribution. Read the sign together with size: a +$50M day is routine, a +$1B day is a statement.
Theses riding on this indicator
Moonkelp reads every indicator through investment theses — pick yours and the daily briefing shows what supports or threatens it.
Frequently asked questions
What counts as a Bitcoin ETF flow?
The net of creations minus redemptions across US spot Bitcoin ETFs each trading day, in dollars. Positive means new money bought ETF shares (and the issuers bought Bitcoin); negative means shares were redeemed.
Why do ETF flows matter for the Bitcoin price?
Spot ETFs must hold real Bitcoin against their shares. Sustained inflows therefore translate directly into spot buying by issuers — structural demand that does not depend on crypto-native sentiment. They are also the best observable proxy for institutional positioning.
How current is this data?
Flow data is compiled after each US trading day from issuer reports. Moonkelp refreshes it with every agent cycle and stamps the latest data point under the chart.
Data & method
Collected automatically by the Moonkelp agent, validated against plausibility bands before anything is written. How the pipeline works →
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