iShares Bitcoin Trust ETF

SecurityIBIT / iShares Bitcoin Trust ETF
InstitutionMillennium Management Llc
ManagerIsrael Englander
Latest Disclosed Ownership19,287,318 shares
Latest Disclosed Value $ 741,018,758
Millennium Management Llc ownership in IBIT / iShares Bitcoin Trust ETF

On May 15, 2026 - Millennium Management Llc filed a 13F-HR form disclosing ownership of 19,287,318 shares of iShares Bitcoin Trust ETF (US:IBIT) valued at $741,018,758 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 34,333,524 shares of iShares Bitcoin Trust ETF. This represents a change in shares of -43.82% during the quarter. The current value of the position is $658,469,037 USD.

Millennium Management Llc has a history of taking positions in derivatives of the underlying security (IBIT) in the form of stock options. The firm currently holds call options representing 1,367,600 of underlying shares valued at $52,543,192 USD and put options representing 1,139,300 of underlying shares valued at $43,771,906 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

IBIT / iShares Bitcoin Trust ETF Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F ISHARES BITCOIN TRUST ETF SHS BEN INT 46438F101 19,287,318 -15,046,206 -43.82 741,019 -56.53 0.3084
2026-02-17 2025-12-31 13F ISHARES BITCOIN TRUST ETF SHS BEN INT 46438F101 34,333,524 13,814,418 67.32 1,704,659 27.81 0.7169
2025-11-14 2025-09-30 13F ISHARES BITCOIN TRUST ETF SHS BEN INT 46438F101 20,519,106 -915,232 -4.27 1,333,742 1.66 0.5693
2025-08-14 2025-06-30 13F ISHARES BITCOIN TRUST ETF SHS BEN INT 46438F101 21,434,338 3,847,182 21.87 1,311,996 59.37 0.6336
2025-05-15 2025-03-31 13F ISHARES BITCOIN TRUST ETF SHS BEN INT 46438F101 17,587,156 -12,263,042 -41.08 823,255 -48.01 0.4382
2025-02-14 2024-12-31 13F ISHARES BITCOIN TRUST ETF SHS BEN INT 46438F101 29,850,198 6,352,197 27.03 1,583,553 86.52 0.7738
2024-11-14 2024-09-30 13F ISHARES BITCOIN TRUST ETF SHS BEN INT 46438F101 23,498,001 12,621,559 116.04 848,983 128.64 0.4026
2024-08-14 2024-06-30 13F ISHARES BITCOIN TR SHS 46438F101 10,876,442 -9,983,005 -47.86 371,322 -56.01 0.1720
2024-05-15 2024-03-31 13F ISHARES BITCOIN TR SHS 46438F101 20,859,447 20,859,447 844,182 0.3606
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F ISHARES BITCOIN TRUST ETF SHS BEN INT Call 1,367,600 17.09 52,543 -9.39 n/a n/a n/a
2026-02-17 2025-12-31 13F ISHARES BITCOIN TRUST ETF SHS BEN INT Call 1,168,000 28.68 57,991 -1.71 n/a n/a n/a
2025-11-14 2025-09-30 13F ISHARES BITCOIN TRUST ETF SHS BEN INT Call 907,700 182.68 59,000 200.19 n/a n/a n/a
2025-08-14 2025-06-30 13F ISHARES BITCOIN TRUST ETF SHS BEN INT Call 321,100 30.26 19,655 70.34 n/a n/a n/a
2025-05-15 2025-03-31 13F ISHARES BITCOIN TRUST ETF SHS BEN INT Call 246,500 11,539 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F ISHARES BITCOIN TRUST ETF SHS BEN INT Put 1,139,300 -21.36 43,772 -39.15 n/a n/a n/a
2026-02-17 2025-12-31 13F ISHARES BITCOIN TRUST ETF SHS BEN INT Put 1,448,800 38.89 71,933 6.09 n/a n/a n/a
2025-11-14 2025-09-30 13F ISHARES BITCOIN TRUST ETF SHS BEN INT Put 1,043,100 91.18 67,802 103.02 n/a n/a n/a
2025-08-14 2025-06-30 13F ISHARES BITCOIN TRUST ETF SHS BEN INT Put 545,600 104.50 33,396 167.42 n/a n/a n/a
2025-05-15 2025-03-31 13F ISHARES BITCOIN TRUST ETF SHS BEN INT Put 266,800 12,489 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.