ProShares Trust - ProShares Bitcoin ETF
US ˙ ARCA ˙ US74347G4405

SecurityBITO / ProShares Trust - ProShares Bitcoin ETF
InstitutionCitadel Advisors Llc
ManagerKen Griffin
Latest Disclosed Ownership89,304 shares
Latest Disclosed Value $ 831,420
Citadel Advisors Llc ownership in BITO / ProShares Trust - ProShares Bitcoin ETF

On May 15, 2026 - Citadel Advisors Llc filed a 13F-HR form disclosing ownership of 89,304 shares of ProShares Trust - ProShares Bitcoin ETF (US:BITO) valued at $831,420 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,031,926 shares of ProShares Trust - ProShares Bitcoin ETF. This represents a change in shares of -91.35% during the quarter. The current value of the position is $794,806 USD.

Citadel Advisors Llc has a history of taking positions in derivatives of the underlying security (BITO) in the form of stock options. The firm currently holds call options representing 981,600 of underlying shares valued at $9,138,696 USD and put options representing 339,400 of underlying shares valued at $3,159,814 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.

BITO / ProShares Trust - ProShares Bitcoin 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 PROSHARES TR BITCOIN ETF 74347G440 89,304 -942,622 -91.35 831 -93.38 0.0001
2026-02-17 2025-12-31 13F PROSHARES TR BITCOIN ETF 74347G440 1,031,926 928,611 898.82 12,548 517.22 0.0019
2025-11-14 2025-09-30 13F PROSHARES TR BITCOIN ETF 74347G440 103,315 -606,116 -85.44 2,033 -86.68 0.0003
2025-08-14 2025-06-30 13F PROSHARES TR BITCOIN ETF 74347G440 709,431 709,431 15,260 0.0026
2025-05-15 2025-03-31 13F PROSHARES TR BITCOIN ETF 74347G440 0 -1,046,879 -100.00 0 -100.00
2025-02-14 2024-12-31 13F PROSHARES TR BITCOIN ETF 74347G440 1,046,879 549,988 110.69 23,848 150.10 0.0041
2024-11-14 2024-09-30 13F PROSHARES TR BITCOIN ETF 74347G440 496,891 -363,836 -42.27 9,535 -50.78 0.0018
2024-08-14 2024-06-30 13F PROSHARES TR BITCOIN STRATE 74347G440 860,727 669,246 349.51 19,375 213.29 0.0039
2024-05-15 2024-03-31 13F PROSHARES TR BITCOIN STRATE 74347G440 191,481 -287,097 -59.99 6,185 -36.94 0.0012
2024-02-14 2023-12-31 13F PROSHARES TR BITCOIN STRATE 74347G440 478,578 478,578 9,806 0.0020
2023-11-14 2023-09-30 13F PROSHARES TR BITCOIN STRATE 74347G440 0 -8 -100.00 0 0.0000
2023-08-14 2023-06-30 13F PROSHARES TR BITCOIN STRATE 74347G440 8 8 0 0.0000
2023-02-14 2022-12-31 13F PROSHARES TR BITCOIN STRATE 74347G440 0 -486,782 -100.00 0 -100.00
2022-11-14 2022-09-30 13F PROSHARES TR BITCOIN STRATE 74347G440 486,782 -1,168,417 -70.59 5,837 -69.63 0.0013
2022-08-15 2022-06-30 13F PROSHARES TR BITCOIN STRATE 74347G440 1,655,199 -293,508 -15.06 19,217 -65.47 0.0049
2022-05-16 2022-03-31 13F PROSHARES TR BITCOIN STRATE 74347G440 1,948,707 1,435,655 279.83 55,655 275.36 0.0115
2022-02-14 2021-12-31 13F PROSHARES TR BITCOIN STRATE 74347G440 513,052 513,052 14,827 0.0030
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 PROSHARES TR BITCOIN ETF Call 981,600 -36.23 9,139 -51.18 n/a n/a n/a
2026-02-17 2025-12-31 13F PROSHARES TR BITCOIN ETF Call 1,539,200 18.65 18,717 -26.69 n/a n/a n/a
2025-11-14 2025-09-30 13F PROSHARES TR BITCOIN ETF Call 1,297,300 0.14 25,531 -8.38 n/a n/a n/a
2025-08-14 2025-06-30 13F PROSHARES TR BITCOIN ETF Call 1,295,500 -15.64 27,866 -0.95 n/a n/a n/a
2025-05-15 2025-03-31 13F PROSHARES TR BITCOIN ETF Call 1,535,700 -57.37 28,134 -65.72 n/a n/a n/a
2025-02-14 2024-12-31 13F PROSHARES TR BITCOIN ETF Call 3,602,600 14.53 82,067 35.95 n/a n/a n/a
2024-11-14 2024-09-30 13F PROSHARES TR BITCOIN ETF Call 3,145,600 5.48 60,364 -10.08 n/a n/a n/a
2024-08-14 2024-06-30 13F PROSHARES TR BITCOIN STRATE Call 2,982,300 41.97 67,132 -1.06 n/a n/a n/a
2024-05-15 2024-03-31 13F PROSHARES TR BITCOIN STRATE Call 2,100,600 76.02 67,849 177.48 n/a n/a n/a
2024-02-14 2023-12-31 13F PROSHARES TR BITCOIN STRATE Call 1,193,400 58.80 24,453 135.61 n/a n/a n/a
2023-11-14 2023-09-30 13F PROSHARES TR BITCOIN STRATE Call 751,500 -18.25 10,378 -33.51 n/a n/a n/a
2023-08-14 2023-06-30 13F PROSHARES TR BITCOIN STRATE Call 919,300 -67.26 15,610 -68.27 n/a n/a n/a
2023-05-15 2023-03-31 13F PROSHARES TR BITCOIN STRATE Call 2,808,200 -2.00 49,200 64.61 n/a n/a n/a
2023-02-14 2022-12-31 13F PROSHARES TR BITCOIN STRATE Call 2,865,600 102.44 29,888 76.10 n/a n/a n/a
2022-11-14 2022-09-30 13F PROSHARES TR BITCOIN STRATE Call 1,415,500 16.99 16,972 20.82 n/a n/a n/a
2022-08-15 2022-06-30 13F PROSHARES TR BITCOIN STRATE Call 1,209,900 -47.95 14,047 -78.84 n/a n/a n/a
2022-05-16 2022-03-31 13F PROSHARES TR BITCOIN STRATE Call 2,324,600 35.14 66,391 33.55 n/a n/a n/a
2022-02-14 2021-12-31 13F PROSHARES TR BITCOIN STRATE Call 1,720,200 49,714 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 PROSHARES TR BITCOIN ETF Put 339,400 -53.70 3,160 -64.56 n/a n/a n/a
2026-02-17 2025-12-31 13F PROSHARES TR BITCOIN ETF Put 733,000 -18.31 8,913 -49.52 n/a n/a n/a
2025-11-14 2025-09-30 13F PROSHARES TR BITCOIN ETF Put 897,300 -64.56 17,659 -67.58 n/a n/a n/a
2025-08-14 2025-06-30 13F PROSHARES TR BITCOIN ETF Put 2,531,800 10.92 54,459 30.23 n/a n/a n/a
2025-05-15 2025-03-31 13F PROSHARES TR BITCOIN ETF Put 2,282,600 -13.09 41,817 -30.11 n/a n/a n/a
2025-02-14 2024-12-31 13F PROSHARES TR BITCOIN ETF Put 2,626,500 -25.15 59,832 -11.15 n/a n/a n/a
2024-11-14 2024-09-30 13F PROSHARES TR BITCOIN ETF Put 3,509,000 50.02 67,338 27.90 n/a n/a n/a
2024-08-14 2024-06-30 13F PROSHARES TR BITCOIN STRATE Put 2,339,000 60.17 52,651 11.62 n/a n/a n/a
2024-05-15 2024-03-31 13F PROSHARES TR BITCOIN STRATE Put 1,460,300 -18.10 47,168 29.11 n/a n/a n/a
2024-02-14 2023-12-31 13F PROSHARES TR BITCOIN STRATE Put 1,783,000 122.24 36,534 229.75 n/a n/a n/a
2023-11-14 2023-09-30 13F PROSHARES TR BITCOIN STRATE Put 802,300 -47.25 11,080 -57.10 n/a n/a n/a
2023-08-14 2023-06-30 13F PROSHARES TR BITCOIN STRATE Put 1,521,000 -34.29 25,827 -36.32 n/a n/a n/a
2023-05-15 2023-03-31 13F PROSHARES TR BITCOIN STRATE Put 2,314,800 35.52 40,555 127.65 n/a n/a n/a
2023-02-14 2022-12-31 13F PROSHARES TR BITCOIN STRATE Put 1,708,100 -37.89 17,815 -45.97 n/a n/a n/a
2022-11-14 2022-09-30 13F PROSHARES TR BITCOIN STRATE Put 2,750,200 -24.45 32,975 -21.98 n/a n/a n/a
2022-08-15 2022-06-30 13F PROSHARES TR BITCOIN STRATE Put 3,640,400 52.09 42,265 -38.17 n/a n/a n/a
2022-05-16 2022-03-31 13F PROSHARES TR BITCOIN STRATE Put 2,393,600 40.49 68,361 38.83 n/a n/a n/a
2022-02-14 2021-12-31 13F PROSHARES TR BITCOIN STRATE Put 1,703,800 49,240 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.