GraniteShares ETF Trust - GraniteShares 2x Long MARA Daily ETF

SecurityMRAL / GraniteShares ETF Trust - GraniteShares 2x Long MARA Daily ETF
InstitutionOptiver Holding B.V.
Latest Disclosed Ownership70,408 shares
Latest Disclosed Value $ 202,071
Optiver Holding B.V. reports 128.43% increase in ownership of MRAL / GraniteShares ETF Trust - GraniteShares 2x Long MARA Daily ETF

On June 2, 2026 - Optiver Holding B.V. filed a 13F-HR/A form disclosing ownership of 70,408 shares of GraniteShares ETF Trust - GraniteShares 2x Long MARA Daily ETF (US:MRAL) valued at $202,071 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 30,822 shares of GraniteShares ETF Trust - GraniteShares 2x Long MARA Daily ETF. This represents a change in shares of 128.43% during the quarter. The current value of the position is $5,356,415 USD.

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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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)
2026-06-02 2026-03-31 13F/A-1 GRANITESHARES ETF TR 2X LONG MARA 38747R538 70,408 39,586 128.43 202 43.26 0.0001
2026-05-15 2026-03-31 13F GRANITESHARES ETF TR 2X LONG MARA 38747R538 70,408 39,586 202 0.0001
2026-02-17 2025-12-31 13F GRANITESHARES ETF TR 2X LONG MARA 38747R538 30,822 5,964 23.99 141 -75.44 0.0001
2025-11-10 2025-09-30 13F GRANITESHARES ETF TR 2X LONG MARA 38747R538 24,858 13,859 126.00 575 163.30 0.0002
2025-08-14 2025-06-30 13F GRANITESHARES ETF TR 2X LONG MARA 38747R538 10,999 10,999 218 0.0001
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.