iShares Silver Trust
MX ˙ BMV ˙ US46428Q1094
SecurityMX:SLV / iShares Silver Trust
InstitutionOptiver Holding B.V.
Latest Disclosed Ownership657,868 shares
Latest Disclosed Value $ 44,827,125
Optiver Holding B.V. ownership in SLV / iShares Silver Trust

On June 2, 2026 - Optiver Holding B.V. filed a 13F-HR/A form disclosing ownership of 657,868 shares of iShares Silver Trust (MX:SLV) valued at $44,827,125 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 863,021 shares of iShares Silver Trust. This represents a change in shares of -23.77% during the quarter.

Optiver Holding B.V. has a history of taking positions in derivatives of the underlying security (SLV) in the form of stock options. The firm currently holds call options representing 38,478,300 of underlying shares valued at $2,621,911,362 USD and put options representing 28,211,300 of underlying shares valued at $1,922,317,982 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.

MX:SLV / iShares Silver Trust 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)
2026-06-02 2026-03-31 13F/A-1 ISHARES SILVER TR ISHARES 46428Q109 657,868 -205,153 -23.77 44,827 -19.37 0.0153
2026-05-15 2026-03-31 13F ISHARES SILVER TR ISHARES 46428Q109 657,868 -205,153 44,827 0.0153
2026-02-17 2025-12-31 13F ISHARES SILVER TR ISHARES 46428Q109 863,021 668,487 343.64 55,596 574.53 0.0207
2025-11-10 2025-09-30 13F ISHARES SILVER TR ISHARES 46428Q109 194,534 194,534 8,242 0.0033
2024-11-14 2024-09-30 13F ISHARES SILVER TR ISHARES 46428Q109 0 -81,026 -100.00 0 -100.00
2024-08-14 2024-06-30 13F ISHARES SILVER TR ISHARES 46428Q109 81,026 -65,501 -44.70 2,153 -35.43 0.0012
2024-05-09 2024-03-31 13F ISHARES SILVER TR ISHARES 46428Q109 146,527 -610,790 -80.65 3,333 -79.79 0.0018
2024-02-13 2023-12-31 13F ISHARES SILVER TR ISHARES 46428Q109 757,317 605,900 400.15 16,494 435.69 0.0101
2023-11-13 2023-09-30 13F ISHARES SILVER TR ISHARES 46428Q109 151,417 -443,500 -74.55 3,080 -75.22 0.0021
2023-08-10 2023-06-30 13F ISHARES SILVER TR ISHARES 46428Q109 594,917 594,917 12,428 0.0088
2023-05-11 2023-03-31 13F ISHARES SILVER TR ISHARES 46428Q109 0 -578,408 -100.00 0 -100.00
2023-02-10 2022-12-31 13F ISHARES SILVER TR ISHARES 46428Q109 578,408 -4,556,792 -88.74 12,758 -85.81 0.0132
2022-11-14 2022-09-30 13F ISHARES SILVER TR PUT 46428Q959 5,135,200 965,300 23.15 89,925 15.36 0.0777
2022-11-14 2022-09-30 13F ISHARES SILVER TR CALL 46428Q909 10,803,300 -1,678,100 -13.44 189,183 -18.92 0.1635
2022-11-14 2022-09-30 13F ISHARES SILVER TR ISHARES 46428Q109 79,218 1,387
2022-08-10 2022-06-30 13F ISHARES SILVER TR PUT 46428Q959 4,169,900 -1,806,400 -30.23 77,952 -43.00 0.0861
2022-08-10 2022-06-30 13F ISHARES SILVER TR CALL 46428Q909 12,481,400 -983,200 -7.30 233,327 -24.27 0.2577
2022-05-16 2022-03-31 13F ISHARES SILVER TR PUT 46428Q959 5,976,300 1,897,400 46.52 136,755 63.26 0.1327
2022-05-16 2022-03-31 13F ISHARES SILVER TR CALL 46428Q909 13,464,600 4,846,800 56.24 308,108 74.10 0.2989
2022-05-16 2022-03-31 13F ISHARES SILVER TR ISHARES 46428Q109 999,167 22,864
2022-02-14 2021-12-31 13F ISHARES SILVER TRUST PUT 46428Q959 4,078,900 0 0.00 83,763 0.00 0.0739
2022-02-14 2021-12-31 13F ISHARES SILVER TRUST CALL 46428Q909 8,617,800 0 0.00 176,973 0.00 0.1561
2022-02-14 2021-12-31 13F ISHARES SILVER TRUST ISHARES 46428Q109 336,720 6,915
2021-11-15 2021-09-30 13F ISHARES SILVER TRUST PUT 46428Q959 4,078,900 -2,500,600 -38.01 83,763 -43.86 0.0820
2021-11-15 2021-09-30 13F ISHARES SILVER TRUST CALL 46428Q909 8,617,800 -2,373,600 -21.60 176,973 -29.00 0.1733
2021-11-15 2021-09-30 13F ISHARES SILVER TRUST ISHARES 46428Q109 336,720 237,704 6,915 0.0068
2021-08-16 2021-06-30 13F ISHARES SILVER TR ISHARES 46428Q109 99,016 0 0.00 2,246 0.00 0.0030
2021-05-20 2021-03-31 13F/A-1 ISHARES SILVER TR ISHARES 46428Q109 99,016 99,016 2,246 0.0036
2021-05-14 2021-03-31 13F ISHARES SILVER TR ISHARES 46428Q109 99,016 99,016 2,246 0.0025
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
(%)
2026-06-02 2026-03-31 13F/A ISHARES SILVER TR ISHARES Call 38,478,300 75.13 2,621,911 85.24 n/a n/a n/a
2026-05-15 2026-03-31 13F ISHARES SILVER TR ISHARES Call 38,478,300 2,621,911 n/a n/a n/a
2026-02-17 2025-12-31 13F ISHARES SILVER TR ISHARES Call 21,971,100 22.05 1,415,378 85.57 n/a n/a n/a
2025-11-10 2025-09-30 13F ISHARES SILVER TR ISHARES Call 18,001,500 20.62 762,724 55.76 n/a n/a n/a
2025-08-14 2025-06-30 13F ISHARES SILVER TR ISHARES Call 14,924,300 3.14 489,666 9.19 n/a n/a n/a
2025-05-15 2025-03-31 13F ISHARES SILVER TR ISHARES Call 14,470,500 -30.31 448,441 -17.98 n/a n/a n/a
2025-02-14 2024-12-31 13F ISHARES SILVER TR ISHARES Call 20,764,300 -10.03 546,724 -16.61 n/a n/a n/a
2024-11-14 2024-09-30 13F ISHARES SILVER TR ISHARES Call 23,078,500 19.92 655,660 28.22 n/a n/a n/a
2024-08-14 2024-06-30 13F ISHARES SILVER TR ISHARES Call 19,245,100 30.19 511,342 52.05 n/a n/a n/a
2024-05-09 2024-03-31 13F ISHARES SILVER TR ISHARES Call 14,782,200 13.16 336,295 18.20 n/a n/a n/a
2024-02-13 2023-12-31 13F ISHARES SILVER TR ISHARES Call 13,062,900 -24.58 284,510 -19.24 n/a n/a n/a
2023-11-13 2023-09-30 13F ISHARES SILVER TR ISHARES Call 17,319,400 3.85 352,277 1.11 n/a n/a n/a
2023-08-10 2023-06-30 13F ISHARES SILVER TR ISHARES Call 16,677,800 -30.47 348,399 -34.33 n/a n/a n/a
2023-05-11 2023-03-31 13F ISHARES SILVER TR ISHARES Call 23,985,200 84.12 530,553 84.65 n/a n/a n/a
2023-02-10 2022-12-31 13F ISHARES SILVER TR ISHARES Call 13,027,000 20.58 287,328 51.88 n/a n/a n/a
2022-11-14 2022-09-30 13F ISHARES SILVER TR CALL 10,803,300 -13.44 189,183 -18.92 n/a n/a n/a
2022-08-10 2022-06-30 13F ISHARES SILVER TR CALL 12,481,400 -7.30 233,327 -24.27 n/a n/a n/a
2022-05-16 2022-03-31 13F ISHARES SILVER TR CALL 13,464,600 56.24 308,108 74.10 n/a n/a n/a
2022-02-14 2021-12-31 13F ISHARES SILVER TRUST CALL 8,617,800 0.00 176,973 0.00 n/a n/a n/a
2021-11-15 2021-09-30 13F ISHARES SILVER TRUST CALL 8,617,800 -21.60 176,973 -29.00 n/a n/a n/a
2021-08-16 2021-06-30 13F ISHARES SILVER TR CALL Call 10,991,400 249,265 0.00 n/a n/a n/a
2021-05-20 2021-03-31 13F/A ISHARES SILVER TR ISHARES Call 249,265 n/a n/a n/a
2021-05-14 2021-03-31 13F ISHARES SILVER TR ISHARES Call 249,265 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
(%)
2026-06-02 2026-03-31 13F/A ISHARES SILVER TR ISHARES Put 28,211,300 63.89 1,922,318 73.35 n/a n/a n/a
2026-05-15 2026-03-31 13F ISHARES SILVER TR ISHARES Put 28,211,300 1,922,318 n/a n/a n/a
2026-02-17 2025-12-31 13F ISHARES SILVER TR ISHARES Put 17,213,700 21.80 1,108,907 85.18 n/a n/a n/a
2025-11-10 2025-09-30 13F ISHARES SILVER TR ISHARES Put 14,133,100 75.24 598,819 126.31 n/a n/a n/a
2025-08-14 2025-06-30 13F ISHARES SILVER TR ISHARES Put 8,064,800 5.52 264,606 11.72 n/a n/a n/a
2025-05-15 2025-03-31 13F ISHARES SILVER TR ISHARES Put 7,642,600 20.27 236,844 41.56 n/a n/a n/a
2025-02-14 2024-12-31 13F ISHARES SILVER TR ISHARES Put 6,354,400 -27.10 167,311 -32.44 n/a n/a n/a
2024-11-14 2024-09-30 13F ISHARES SILVER TR ISHARES Put 8,716,800 -2.00 247,644 4.79 n/a n/a n/a
2024-08-14 2024-06-30 13F ISHARES SILVER TR ISHARES Put 8,894,300 47.33 236,322 72.07 n/a n/a n/a
2024-05-09 2024-03-31 13F ISHARES SILVER TR ISHARES Put 6,036,800 -7.06 137,337 -2.92 n/a n/a n/a
2024-02-13 2023-12-31 13F ISHARES SILVER TR ISHARES Put 6,495,300 -13.46 141,468 -7.33 n/a n/a n/a
2023-11-13 2023-09-30 13F ISHARES SILVER TR ISHARES Put 7,505,400 -11.67 152,660 -13.99 n/a n/a n/a
2023-08-10 2023-06-30 13F ISHARES SILVER TR ISHARES Put 8,496,600 -0.90 177,494 -6.41 n/a n/a n/a
2023-05-11 2023-03-31 13F ISHARES SILVER TR ISHARES Put 8,573,600 -24.71 189,648 -24.49 n/a n/a n/a
2023-02-10 2022-12-31 13F ISHARES SILVER TR ISHARES Put 11,386,800 121.74 251,151 179.29 n/a n/a n/a
2022-11-14 2022-09-30 13F ISHARES SILVER TR PUT 5,135,200 23.15 89,925 15.36 n/a n/a n/a
2022-08-10 2022-06-30 13F ISHARES SILVER TR PUT 4,169,900 -30.23 77,952 -43.00 n/a n/a n/a
2022-05-16 2022-03-31 13F ISHARES SILVER TR PUT 5,976,300 46.52 136,755 63.26 n/a n/a n/a
2022-02-14 2021-12-31 13F ISHARES SILVER TRUST PUT 4,078,900 0.00 83,763 0.00 n/a n/a n/a
2021-11-15 2021-09-30 13F ISHARES SILVER TRUST PUT 4,078,900 -38.01 83,763 -43.86 n/a n/a n/a
2021-08-16 2021-06-30 13F ISHARES SILVER TR PUT Put 6,579,500 149,211 0.00 n/a n/a n/a
2021-05-20 2021-03-31 13F/A ISHARES SILVER TR ISHARES Put 149,211 n/a n/a n/a
2021-05-14 2021-03-31 13F ISHARES SILVER TR ISHARES Put 149,211 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.