ARK ETF Trust - ARK Blockchain & Fintech Innovation ETF
US ˙ BATS ˙ US00214Q7088

SecurityARKF / ARK ETF Trust - ARK Blockchain & Fintech Innovation ETF
InstitutionCitadel Advisors Llc
ManagerKen Griffin
Latest Disclosed Ownership10,652 shares
Latest Disclosed Value $ 404,883
Citadel Advisors Llc ownership in ARKF / ARK ETF Trust - ARK Blockchain & Fintech Innovation ETF

On May 15, 2026 - Citadel Advisors Llc filed a 13F-HR form disclosing ownership of 10,652 shares of ARK ETF Trust - ARK Blockchain & Fintech Innovation ETF (US:ARKF) valued at $404,883 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 19,736 shares of ARK ETF Trust - ARK Blockchain & Fintech Innovation ETF. This represents a change in shares of -46.03% during the quarter. The current value of the position is $406,693 USD.

Citadel Advisors Llc has a history of taking positions in derivatives of the underlying security (ARKF) in the form of stock options. The firm currently holds call options representing 55,400 of underlying shares valued at $2,105,754 USD and put options representing 5,700 of underlying shares valued at $216,657 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.

ARKF / ARK ETF Trust - ARK Blockchain & Fintech Innovation 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 ARK ETF TR BLOCKCHAIN & FIN 00214Q708 10,652 -9,084 -46.03 405 -57.02 0.0001
2026-02-17 2025-12-31 13F ARK ETF TR BLOCKCHAIN & FIN 00214Q708 19,736 1,088 5.83 940 -11.24 0.0001
2025-11-14 2025-09-30 13F ARK ETF TR FINTECH INNOVA 00214Q708 18,648 9,127 95.86 1,059 121.55 0.0001
2025-08-14 2025-06-30 13F ARK ETF TR FINTECH INNOVA 00214Q708 9,521 -28,155 -74.73 478 -61.85 0.0001
2025-05-15 2025-03-31 13F ARK ETF TR FINTECH INNOVA 00214Q708 37,676 -49,415 -56.74 1,253 -61.16 0.0002
2025-02-14 2024-12-31 13F ARK ETF TR FINTECH INNOVA 00214Q708 87,091 10,440 13.62 3,227 41.18 0.0006
2024-11-14 2024-09-30 13F ARK ETF TR FINTECH INNOVA 00214Q708 76,651 -17,614 -18.69 2,286 -12.99 0.0004
2024-08-14 2024-06-30 13F ARK ETF TR FINTECH INNOVA 00214Q708 94,265 -34,879 -27.01 2,626 -32.94 0.0005
2024-05-15 2024-03-31 13F ARK ETF TR FINTECH INNOVA 00214Q708 129,144 -81,710 -38.75 3,917 -32.66 0.0008
2024-02-14 2023-12-31 13F ARK ETF TR FINTECH INNOVA 00214Q708 210,854 183,523 671.48 5,815 999.24 0.0012
2023-11-14 2023-09-30 13F ARK ETF TR FINTECH INNOVA 00214Q708 27,331 23,416 598.11 529 553.09 0.0001
2023-08-14 2023-06-30 13F ARK ETF TR FINTECH INNOVA 00214Q708 3,915 3,915 82 0.0000
2022-11-14 2022-09-30 13F ARK ETF TR FINTECH INNOVA 00214Q708 0 -32,056 -100.00 0 -100.00
2022-08-15 2022-06-30 13F ARK ETF TR FINTECH INNOVA 00214Q708 32,056 32,056 497 0.0001
2022-05-16 2022-03-31 13F ARK ETF TR FINTECH INNOVA 00214Q708 0 -47,216 -100.00 0 -100.00
2022-02-14 2021-12-31 13F ARK ETF TR FINTECH INNOVA 00214Q708 47,216 -172,790 -78.54 1,929 -82.24 0.0004
2021-11-15 2021-09-30 13F ARK ETF TR Cmn 00214Q708 220,006 16,330 8.02 10,860 -1.46 0.0023
2021-08-16 2021-06-30 13F ARK ETF TR FINTECH INNOVA 00214Q708 203,676 67,804 49.90 11,021 58.74 0.0025
2021-05-21 2021-03-31 13F/A-1 ARK ETF TR FINTECH INNOVA 00214Q708 135,872 27,708 25.62 6,943 29.12 0.0017
2021-05-17 2021-03-31 13F ARK ETF TR FINTECH INNOVA 00214Q708 135,872 27,708 6,943 0.0017
2021-02-16 2020-12-31 13F ARK ETF TR FINTECH INNOVA 00214Q708 108,164 102,524 1,817.80 5,377 2,300.45 0.0014
2020-11-16 2020-09-30 13F ARK ETF TR FINTECH INNOVA 00214Q708 5,640 5,640 224 0.0001
2020-08-14 2020-06-30 13F ARK ETF TR Cmn 00214Q708 0 -58,084 -100.00 0 -100.00
2020-05-15 2020-03-31 13F ARK ETF TR Cmn 00214Q708 58,084 36,833 173.32 1,184 132.16 0.0005
2020-02-14 2019-12-31 13F ARK ETF TR Cmn 00214Q708 21,251 7,051 49.65 510 67.21 0.0002
2019-11-14 2019-09-30 13F ARK ETF TR Cmn 00214Q708 14,200 14,200 305 0.0001
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 ARK ETF TR BLOCKCHAIN & FIN Call 55,400 -13.17 2,106 -30.71 n/a n/a n/a
2026-02-17 2025-12-31 13F ARK ETF TR BLOCKCHAIN & FIN Call 63,800 28.37 3,039 7.65 n/a n/a n/a
2025-11-14 2025-09-30 13F ARK ETF TR FINTECH INNOVA Call 49,700 -36.12 2,823 -27.79 n/a n/a n/a
2025-08-14 2025-06-30 13F ARK ETF TR FINTECH INNOVA Call 77,800 31.42 3,909 98.58 n/a n/a n/a
2025-05-15 2025-03-31 13F ARK ETF TR FINTECH INNOVA Call 59,200 -50.83 1,969 -55.87 n/a n/a n/a
2025-02-14 2024-12-31 13F ARK ETF TR FINTECH INNOVA Call 120,400 110.49 4,461 161.58 n/a n/a n/a
2024-11-14 2024-09-30 13F ARK ETF TR FINTECH INNOVA Call 57,200 -23.22 1,706 -17.83 n/a n/a n/a
2024-08-14 2024-06-30 13F ARK ETF TR FINTECH INNOVA Call 74,500 -36.32 2,076 -41.52 n/a n/a n/a
2024-05-15 2024-03-31 13F ARK ETF TR FINTECH INNOVA Call 117,000 -18.47 3,549 -10.34 n/a n/a n/a
2024-02-14 2023-12-31 13F ARK ETF TR FINTECH INNOVA Call 143,500 -2.51 3,958 38.89 n/a n/a n/a
2023-11-14 2023-09-30 13F ARK ETF TR FINTECH INNOVA Call 147,200 -11.38 2,850 -17.97 n/a n/a n/a
2023-08-14 2023-06-30 13F ARK ETF TR FINTECH INNOVA Call 166,100 9.93 3,473 22.20 n/a n/a n/a
2023-05-15 2023-03-31 13F ARK ETF TR FINTECH INNOVA Call 151,100 -68.76 2,842 -58.82 n/a n/a n/a
2023-02-14 2022-12-31 13F ARK ETF TR FINTECH INNOVA Call 483,700 -5.25 6,902 -12.15 n/a n/a n/a
2022-11-14 2022-09-30 13F ARK ETF TR FINTECH INNOVA Call 510,500 -24.93 7,857 -25.41 n/a n/a n/a
2022-08-15 2022-06-30 13F ARK ETF TR FINTECH INNOVA Call 680,000 10.75 10,533 -40.95 n/a n/a n/a
2022-05-16 2022-03-31 13F ARK ETF TR FINTECH INNOVA Call 614,000 5.99 17,837 -24.62 n/a n/a n/a
2022-02-14 2021-12-31 13F ARK ETF TR FINTECH INNOVA Call 579,300 72.51 23,664 42.77 n/a n/a n/a
2021-11-15 2021-09-30 13F ARK ETF TR Cmn Call 335,800 -7.08 16,575 -15.24 n/a n/a n/a
2021-08-16 2021-06-30 13F ARK ETF TR FINTECH INNOVA Call 361,400 -38.72 19,555 -35.12 n/a n/a n/a
2021-05-21 2021-03-31 13F/A ARK ETF TR FINTECH INNOVA Call 589,800 272.82 30,139 283.25 n/a n/a n/a
2021-05-17 2021-03-31 13F ARK ETF TR FINTECH INNOVA Call 589,800 30,139 n/a n/a n/a
2021-02-16 2020-12-31 13F ARK ETF TR FINTECH INNOVA Call 158,200 694.97 7,864 896.70 n/a n/a n/a
2020-11-16 2020-09-30 13F ARK ETF TR FINTECH INNOVA Call 19,900 789 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 ARK ETF TR BLOCKCHAIN & FIN Put 5,700 -93.08 217 -94.50 n/a n/a n/a
2026-02-17 2025-12-31 13F ARK ETF TR BLOCKCHAIN & FIN Put 82,400 28.95 3,925 8.13 n/a n/a n/a
2025-11-14 2025-09-30 13F ARK ETF TR FINTECH INNOVA Put 63,900 129.03 3,630 159.03 n/a n/a n/a
2025-08-14 2025-06-30 13F ARK ETF TR FINTECH INNOVA Put 27,900 -29.72 1,402 6.14 n/a n/a n/a
2025-05-15 2025-03-31 13F ARK ETF TR FINTECH INNOVA Put 39,700 -68.16 1,320 -71.43 n/a n/a n/a
2025-02-14 2024-12-31 13F ARK ETF TR FINTECH INNOVA Put 124,700 30.44 4,620 62.11 n/a n/a n/a
2024-11-14 2024-09-30 13F ARK ETF TR FINTECH INNOVA Put 95,600 -16.21 2,851 -10.32 n/a n/a n/a
2024-08-14 2024-06-30 13F ARK ETF TR FINTECH INNOVA Put 114,100 -20.76 3,179 -27.23 n/a n/a n/a
2024-05-15 2024-03-31 13F ARK ETF TR FINTECH INNOVA Put 144,000 -28.82 4,368 -21.72 n/a n/a n/a
2024-02-14 2023-12-31 13F ARK ETF TR FINTECH INNOVA Put 202,300 21.94 5,579 73.75 n/a n/a n/a
2023-11-14 2023-09-30 13F ARK ETF TR FINTECH INNOVA Put 165,900 30.02 3,212 20.35 n/a n/a n/a
2023-08-14 2023-06-30 13F ARK ETF TR FINTECH INNOVA Put 127,600 49.59 2,668 66.33 n/a n/a n/a
2023-05-15 2023-03-31 13F ARK ETF TR FINTECH INNOVA Put 85,300 80.34 1,604 137.98 n/a n/a n/a
2023-02-14 2022-12-31 13F ARK ETF TR FINTECH INNOVA Put 47,300 -53.49 675 -56.93 n/a n/a n/a
2022-11-14 2022-09-30 13F ARK ETF TR FINTECH INNOVA Put 101,700 -66.72 1,565 -66.94 n/a n/a n/a
2022-08-15 2022-06-30 13F ARK ETF TR FINTECH INNOVA Put 305,600 -42.77 4,734 -69.48 n/a n/a n/a
2022-05-16 2022-03-31 13F ARK ETF TR FINTECH INNOVA Put 534,000 11.90 15,513 -20.42 n/a n/a n/a
2022-02-14 2021-12-31 13F ARK ETF TR FINTECH INNOVA Put 477,200 41.85 19,494 17.40 n/a n/a n/a
2021-11-15 2021-09-30 13F ARK ETF TR Cmn Put 336,400 -18.47 16,605 -25.62 n/a n/a n/a
2021-08-16 2021-06-30 13F ARK ETF TR FINTECH INNOVA Put 412,600 -7.59 22,326 -2.15 n/a n/a n/a
2021-05-21 2021-03-31 13F/A ARK ETF TR FINTECH INNOVA Put 446,500 121.26 22,816 127.45 n/a n/a n/a
2021-05-17 2021-03-31 13F ARK ETF TR FINTECH INNOVA Put 446,500 22,816 n/a n/a n/a
2021-02-16 2020-12-31 13F ARK ETF TR FINTECH INNOVA Put 201,800 1,878.43 10,031 2,382.92 n/a n/a n/a
2020-11-16 2020-09-30 13F ARK ETF TR FINTECH INNOVA Put 10,200 404 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.