Answer · confidence: partial
How many bitcoins do all funds own together, and what share is that?
Research question: How many bitcoins do all investment funds combined hold, and what share of total supply does that make?
The most recent figure is that U.S. spot Bitcoin ETFs held about 1.3 million BTC as of October 8, 2026, which is two days before today's date 18. Against the protocol cap of 21 million coins 16, that works out to roughly 6.2% of maximum supply, a calculation from 18 and 16. A June 2026 source put U.S. spot funds at about 1.29 million BTC, or 6.4% of the 20.1 million coins in circulation 21, so the percentage depends on whether the denominator is the cap or circulating supply 22. An early-2026 article gave a higher, broader figure of roughly 1.5 million BTC, around 7% of supply, for ETFs and trusts combined 12, but the verified facts do not provide a worldwide total for all investment funds, so this answer covers U.S. spot ETFs only.
Checked 2026-10-18. Only documented and supported facts are used.
Dig deeper on this questionSources
[1] supported
There are 23 Bitcoin ETFs tracked across 16 issuers.
"ETFs Tracked 23 16 issuers"Bitcoin ETF Tracker: Live BTC Flows, AUM & Fees | CoinStats
[2] documented
Galaxy Digital Inc. holds 3,892,800 shares of ARK 21Shares Bitcoin ETF.
"ARK 21SHARES BITCOIN ETF SHS BEN INT 040919102 75753888 3892800 SH DFND 1,2,3 3892800 0 0"13F-HR Galaxy Digital Inc. (GLXY) (CIK 0001859392) 2026-08-14
[3] documented
Galaxy Digital Inc. holds 725,000 shares of Invesco Galaxy Bitcoin ETF.
"INVESCO GALAXY BITCOIN ETF COM SHS BEN INT 46091J101 42340000 725000 SH DFND 1,2,3 725000 0 0"13F-HR Galaxy Digital Inc. (GLXY) (CIK 0001859392) 2026-08-14
[4] documented
Galaxy Digital Inc. holds 9,706,526 shares of iShares Bitcoin Trust ETF.
"ISHARES BITCOIN TRUST ETF SHS BEN INT 46438F101 323130251 9706526 SH DFND 1,2,3 9706526 0 0"13F-HR Galaxy Digital Inc. (GLXY) (CIK 0001859392) 2026-08-14
[5] documented
Galaxy Digital Inc. holds 3,130,000 call options on iShares Bitcoin Trust ETF.
"ISHARES BITCOIN TRUST ETF SHS BEN INT 46438F101 104197700 3130000 SH Call DFND 1,2,3 3130000 0 0"13F-HR Galaxy Digital Inc. (GLXY) (CIK 0001859392) 2026-08-14
[6] documented
Galaxy Digital Inc. holds 400,000 put options on iShares Bitcoin Trust ETF.
"ISHARES BITCOIN TRUST ETF SHS BEN INT 46438F101 13316000 400000 SH Put DFND 1,2,3 400000 0 0"13F-HR Galaxy Digital Inc. (GLXY) (CIK 0001859392) 2026-08-14
[7] documented
Galaxy Group Investments LLC holds 5,439,100 shares of the iShares Bitcoin Trust ETF.
"ISHARES BITCOIN TRUST ETF SHS BEN INT 46438F101 332927311 5439100 SH DFND 1,2,3 5439100 0 0"13F-HR Galaxy Group Investments LLC (CIK 0001912562) 2026-03-24
[8] documented
Galaxy Group Investments LLC holds 725,000 shares of the Invesco Galaxy Bitcoin ETF.
"INVESCO GALAXY BITCOIN ETF COM SHS BEN INT 46091J101 77959250 725000 SH DFND 1,2,3 725000 0 0"13F-HR Galaxy Group Investments LLC (CIK 0001912562) 2026-03-24
[9] documented
Galaxy Group Investments LLC holds 5,292,680 shares of the ARK 21Shares Bitcoin ETF.
"ARK 21SHARES BITCOIN ETF SHS BEN INT 040919102 189425017 5292680 SH DFND 1,2,3 5292680 0 0"13F-HR Galaxy Group Investments LLC (CIK 0001912562) 2026-03-24
[10] documented
Galaxy Group Investments LLC holds 8,335 shares of the Grayscale Bitcoin Trust ETF.
"GRAYSCALE BITCOIN TRUST ETF SHS REP COM UT 389637109 707058 8335 SH DFND 1,2,3 8335 0 0"13F-HR Galaxy Group Investments LLC (CIK 0001912562) 2026-03-24
[11] documented
Galaxy Group Investments LLC holds 3,200,000 put options on the iShares Bitcoin Trust ETF.
"ISHARES BITCOIN TRUST ETF SHS BEN INT 46438F101 195872000 3200000 SH Put DFND 1,2,3 3200000 0 0"13F-HR Galaxy Group Investments LLC (CIK 0001912562) 2026-03-24
[12] supported
The article states that ETFs and trusts collectively hold roughly 1.5 million BTC, around 7% of total supply.
"These vehicles collectively hold roughly 1.5 million BTC, around 7% of total supply."What Companies Hold the Most Bitcoin in 2026? - Orange Standard
[13] supported
US spot Bitcoin ETFs accumulated more than $135 billion in combined AUM at their peak, in under two years after SEC approval.
"In under two years, US spot ETFs accumulated more than $135 billion in combined AUM at their peak"Bitcoin Statistics 2026: Price, Market Cap, ETF, Mining & Adoption Data - Axis Intelligence
[14] supported
BlackRock's iShares Bitcoin Trust (IBIT) alone holds about 771,000 BTC, which is over 3% of total supply, making up a large share of the fund total.
"The fund holds approximately 771,000 BTC under management, a staggering amount that alone represents over 3% of total Bitcoin supply."What Companies Hold the Most Bitcoin in 2026? - Orange Standard
[15] supported
Bitcoin's total supply is capped at 21 million coins, which is the denominator needed to express ETF holdings as a share of supply.
"Bitcoin’s supply cap of 21 million coins makes the math particularly stark."Who Owns the Most Bitcoin in 2026? Top Holders List
[16] supported
The total Bitcoin supply is capped at 21,000,000 BTC by the protocol.
"Maximum supply 21,000,000 BTC Bitcoin protocol"Bitcoin Statistics 2026: Price, Market Cap, ETF, Mining & Adoption Data - Axis Intelligence
[17] supported
The total circulating supply of Bitcoin reached roughly 19.98 million BTC by February 2026, which is the denominator for computing any holder's share of supply.
"By February 2026, the total circulating supply of Bitcoin has reached roughly 19.98 million BTC, leaving less than 1.1 million yet to be mined."Who Owns the Most Bitcoin in 2026? Top 10 BTC Rich List Revealed
[18] supported
U.S. spot Bitcoin ETFs held about 1.3 million Bitcoin as of the article's writing, more than the estimated 1.1 million coins held by Satoshi Nakamoto.
"U.S. spot Bitcoin ( CRYPTO: BTC ) exchange-traded funds (ETFs) currently hold about 1.3 million Bitcoin, more than the estimated 1.1 million coins owned by Bitcoin’s mysterious creator, Satoshi Nakamoto."Wall Street's Funds Now Hold More Bitcoin Than Satoshi. Did the ETFs Rescue Bitcoin or Capture It? - 24/7 Wall St.
[19] supported
The 21 million figure is the total Bitcoin supply, against which IBIT's 806,037.6 BTC is measured as 3.84% of the total.
"worth roughly $66.66 billion – 3.84% of the 21 million total"Bitcoin ETFs Turn 1,000 Days Old; Top Holders Revealed
[20] supported
BlackRock's iShares Bitcoin Trust ETF holds the largest publicly known amount of bitcoin, 735,741 BTC.
"Blackrocks iShares Bitcoin Trust ETF verwaltet mit ₿ 735.741 den größten öffentlich bekannten Betrag."Bitcoin
[21] supported
U.S. spot funds held roughly 1.29 million Bitcoin, which is 6.4% of the 20.1 million Bitcoin in circulation.
"Altogether, U.S. spot funds held roughly 1.29 million Bitcoin at that time, making up 6.4% of the total 20.1 million Bitcoin currently in circulation."Wall Street's Funds Now Hold More Bitcoin Than Satoshi. Did the ETFs Rescue Bitcoin or Capture It? - 24/7 Wall St.
[22] supported
The overall supply cap of Bitcoin is 21 million coins, even though about 20.1 million are in circulation.
"While the overall cap of 21 million Bitcoin still applies, fund shareholders lack control over the private keys and cannot make peer-to-peer transactions with Bitcoin."Wall Street's Funds Now Hold More Bitcoin Than Satoshi. Did the ETFs Rescue Bitcoin or Capture It? - 24/7 Wall St.
[23] supported
The maximum possible number of bitcoins is 20,999,999.9769, which caps the total supply.
"Die maximal mögliche Zahl aller Bitcoins beträgt 20999999,9769."Bitcoin
[24] supported
Satoshi Nakamoto's estimated 1.1 million coins account for about 5.5% of total Bitcoin supply.
"These coins account for about 5.5% of the total supply and are currently valued at approximately $91 billion."Wall Street's Funds Now Hold More Bitcoin Than Satoshi. Did the ETFs Rescue Bitcoin or Capture It? - 24/7 Wall St.