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Bitcoin ETP holdings now exceed 1.47 million BTC—around 7% of the 21 million supply—with US spot ETFs, led by BlackRock’s IBIT, accounting for the largest share and shaping institutional demand and liquidity dynamics.
ETP holdings: 1.47M BTC (≈7% of supply)
US ETFs hold ~1.29M BTC; BlackRock IBIT leads with 746,810 BTC.
Global ETP net inflows since Dec 31, 2024: +170,000 BTC (~$18.7B); August saw $301M outflows for Bitcoin vs $3.95B inflows to Ethereum funds (CoinShares).
Bitcoin ETP holdings exceed 7% of supply; learn which funds lead, recent flows, and what investors should watch next. Read full analysis.
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Bitcoin ETP holdings now represent more than 7% of the cryptocurrency’s maximum 21 million supply, driven primarily by US spot ETFs that control the largest single-fund positions.
What are current Bitcoin ETP holdings?
Bitcoin ETP holdings total roughly 1.47 million BTC, equal to about 7% of the total 21 million supply. US-based spot ETFs account for the bulk of that amount, concentrating liquidity and institutional exposure in a few large funds.
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How much Bitcoin do US ETFs hold?
US spot Bitcoin ETFs collectively hold more than 1.29 million BTC across 11 funds as of Aug. 31, 2025, according to data shared by HODL15Capital. BlackRock’s iShares Bitcoin Trust (IBIT) is the largest single fund with 746,810 BTC, followed by Fidelity’s Wise Origin Bitcoin Fund (FBTC) at just under 199,500 BTC.
Source: HODL15Capital
Why did global ETP holdings increase since year‑end?
Between Dec. 31, 2024 and Aug. 31, 2025 global Bitcoin ETPs added roughly 170,000 BTC—about $18.7 billion at mid‑period prices—reflecting ongoing institutional adoption and the launch of multiple spot products. This accumulation concentrated supply off-exchange and into regulated fund vehicles.
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How are flows changing month-to-month?
August 2025 marked a slowdown: CoinShares reported a net outflow of $301 million from global Bitcoin ETPs while Ethereum funds attracted $3.95 billion of inflows. These monthly differences show rotation across crypto products and shifting investor preference toward ETH during the period.
What on-chain signals show investor rotation?
Blockchain analytics indicate large holders are reallocating capital. Arkham reports several whales booked BTC profits and moved into ETH, with one whale selling 4,000 BTC for 96,859 ETH in a 12-hour window. Collective whale buys into ETH total roughly $456 million, according to Arkham.
When could broader ETF approvals affect demand?
Market participants are watching a backlog of roughly 92 crypto-related ETF filings with the US SEC, including proposals tracking Solana and XRP. Final decisions expected in October could reallocate capital depending on approvals and product terms.
Frequently Asked Questions
How much of Bitcoin supply is held by funds?
Funds now hold about 1.47 million BTC, roughly 7% of the 21 million supply, with US spot ETFs controlling approximately 1.29 million BTC as of Aug. 31, 2025 (HODL15Capital).
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Are investors moving from Bitcoin to Ethereum?
Yes. Recent on-chain data and fund flows show rotation into ETH—notably $3.95 billion in inflows to Ethereum funds in August—driven by whale activity and ETF dynamics (Arkham, CoinShares).
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Key Takeaways
Concentration: ~1.47M BTC in ETPs equals ~7% of total supply, concentrating liquidity off-exchange.
US ETFs lead: US spot funds hold ~1.29M BTC; BlackRock IBIT is the single-largest holder.
Flow dynamics: Net accumulation through 2025 has slowed—August showed $301M outflows for BTC vs $3.95B inflows to ETH.
Conclusion
Bitcoin ETP holdings now account for a material share of available supply, with US spot ETFs—most notably BlackRock’s IBIT—driving concentration and market impact. Investors should watch fund flows, whale reallocations, and upcoming ETF decisions for signs of renewed demand or redistribution across crypto assets. COINOTAG will continue tracking data and regulatory updates.
