iShares Trust - iShares S&P 100 ETF
US ˙ ARCA ˙ US4642871010

SecurityOEF / iShares Trust - iShares S&P 100 ETF
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership137,304 shares
Latest Disclosed Value $ 43,736,228
Advisor Group Holdings, Inc. ownership in OEF / iShares Trust - iShares S&P 100 ETF

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 137,304 shares of iShares Trust - iShares S&P 100 ETF (US:OEF) valued at $43,672,283 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 192,618 shares of iShares Trust - iShares S&P 100 ETF. This represents a change in shares of -28.72% during the quarter. The current value of the position is $51,424,467 USD.

Advisor Group Holdings, Inc. has a history of taking positions in derivatives of the underlying security (OEF) in the form of stock options. The firm currently holds call options representing 6 of underlying shares valued at $1,188 USD and put options representing 45 of underlying shares valued at $2,160 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.

OEF / iShares Trust - iShares S&P 100 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 TR S&P 100 ETF 464287101 137,304 -55,314 -28.72 43,736 -33.87 0.0372
2026-02-17 2025-12-31 13F ISHARES TR S&P 100 ETF 464287101 192,618 -3,373 -1.72 66,135 3.55 0.0966
2025-11-14 2025-09-30 13F ISHARES TR S&P 100 ETF 464287101 195,991 51,834 35.96 63,868 45.77 0.0894
2025-09-04 2025-06-30 13F/A-1 SHARES TR S&P 100 ETF 464287101 144,157 31,517 27.98 43,814 43.58 0.0780
2025-08-13 2025-06-30 13F SHARES TR S&P 100 ETF 464287101 85,181 -27,459 24,811 0.0287
2025-05-12 2025-03-31 13F ISHARES TR S&P 100 ETF 464287101 112,640 35,212 45.48 30,516 36.39 0.0680
2025-06-06 2024-12-31 13F/A-1 ISHARES TR S&P 100 ETF 464287101 77,428 3,702 5.02 22,373 9.61 0.0502
2025-02-07 2024-12-31 13F ISHARES TR S&P 100 ETF 464287101 64,991 -8,735 18,119 0.0462
2024-11-13 2024-09-30 13F ISHARES TR S&P 100 ETF 464287101 73,726 6,871 10.28 20,413 15.48 0.0460
2024-08-13 2024-06-30 13F ISHARES TR S&P 100 ETF 464287101 66,855 -22,302 -25.01 17,677 -19.89 0.0418
2024-05-10 2024-03-31 13F ISHARES TR S&P 100 ETF 464287101 89,157 -326,395 -78.54 22,065 -76.24 0.0493
2024-02-12 2023-12-31 13F ISHARES TR S&P 100 ETF 464287101 415,552 231,465 125.74 92,847 151.37 0.1625
2023-11-13 2023-09-30 13F ISHARES TR S&P 100 ETF 464287101 184,087 5,918 3.32 36,937 0.15 0.0546
2023-08-21 2023-06-30 13F/A-1 ISHARES TR S&P 100 ETF 464287101 178,169 17,603 10.96 36,882 22.79 0.0662
2023-08-10 2023-06-30 13F ISHARES TR S&P 100 ETF 464287101 195,684 35,118 36,864 0.0100
2023-05-12 2023-03-31 13F ISHARES TR S&P 100 ETF 464287101 160,566 -13,421 -7.71 30,036 1.21 0.0565
2023-02-10 2022-12-31 13F ISHARES TR S&P 100 ETF 464287101 173,987 16,141 10.23 29,678 15.70 0.0601
2022-11-14 2022-09-30 13F ISHARES TR S&P 100 ETF 464287101 157,846 29,303 22.80 25,650 15.67 0.0586
2022-08-10 2022-06-30 13F ISHARES TR S&P 100 ETF 464287101 128,543 46,128 55.97 22,175 30.16 0.0489
2022-05-04 2022-03-31 13F ISHARES TR S&P 100 ETF 464287101 82,415 -20,456 -19.89 17,037 -24.44 0.0331
2022-02-03 2021-12-31 13F ISHARES TR S&P 100 ETF 464287101 102,871 35,328 52.30 22,547 69.02 0.0427
2021-11-05 2021-09-30 13F ISHARES TR S&P 100 ETF 464287101 67,543 -126 -0.19 13,340 0.46 0.0278
2021-08-02 2021-06-30 13F ISHARES TR S&P 100 ETF 464287101 67,669 4,692 7.45 13,279 17.21 0.0287
2021-05-13 2021-03-31 13F ISHARES TR S&P 100 ETF 464287101 62,977 -3,679 -5.52 11,329 -0.98 0.0273
2021-02-10 2020-12-31 13F ISHARES TR S&P 100 ETF 464287101 66,656 -61,273 -47.90 11,441 -40.43 0.0306
2020-11-12 2020-09-30 13F ISHARES TR S&P 100 ETF 464287101 127,929 23,341 22.32 19,207 28.95 0.0575
2020-08-14 2020-06-30 13F ISHARES TR S&P 100 ETF 464287101 104,588 -23,681 -18.46 14,895 -3.90 0.0500
2020-05-18 2020-03-31 13F ISHARES TR S&P 100 ETF 464287101 128,269 128,269 15,500 0.0635
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 TR CALL Call 6 -25.00 1 -75.00 n/a n/a n/a
2026-05-15 2026-03-31 13F ISHARES TR CALL Call 28 20 n/a n/a n/a
2026-05-15 2026-03-31 13F ISHARES TR CALL Put 45 2 n/a n/a n/a
2026-02-17 2025-12-31 13F ISHARES TR CALL Call 8 100.00 4 -50.00 n/a n/a n/a
2025-11-14 2025-09-30 13F ISHARES TR CALL Call 4 -20.00 9 700.00 n/a n/a n/a
2025-08-13 2025-06-30 13F ISHARES TR CALL Call 5 1 n/a n/a n/a
2025-05-12 2025-03-31 13F ISHARES TR CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-06-06 2024-12-31 13F/A ISHARES TR CALL Call 5 -28.57 1 -75.00 n/a n/a n/a
2025-02-07 2024-12-31 13F ISHARES TR CALL Call 7 4 n/a n/a n/a
2025-02-07 2024-12-31 13F ISHARES TR CALL Call 15 0 n/a n/a n/a
2024-11-13 2024-09-30 13F ISHARES TR CALL Call 7 -53.33 4 n/a n/a n/a
2024-11-13 2024-09-30 13F ISHARES TR CALL Call 15 0 n/a n/a n/a
2024-08-13 2024-06-30 13F ISHARES TR CALL Call 15 114.29 0 -100.00 n/a n/a n/a
2024-08-13 2024-06-30 13F ISHARES TR CALL Call 7 4 n/a n/a n/a
2024-05-10 2024-03-31 13F ISHARES TR CALL Call 7 0.00 4 0.00 n/a n/a n/a
2024-02-12 2023-12-31 13F ISHARES TR CALL 20 YR TR BD ETF Call 7 4 n/a n/a n/a
2022-08-10 2022-06-30 13F ISHARES TR CALL 20 YR TR BD ETF Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-05-04 2022-03-31 13F ISHARES TR CALL 20 YR TR BD ETF Call 4 1 n/a n/a n/a
2020-08-14 2020-06-30 13F ISHARES TR CALL RUSSELL 2000 ETF Call 0 -100.00 0 n/a n/a n/a
2020-05-18 2020-03-31 13F ISHARES TR CALL RUSSELL 2000 ETF Call 200 0 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 TR CALL Put 45 2 n/a n/a n/a
2025-11-14 2025-09-30 13F ISHARES TR PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-13 2025-06-30 13F ISHARES TR PUT Put 8 -96.80 0 -100.00 n/a n/a n/a
2025-08-13 2025-06-30 13F ISHARES TR PUT Put 35 5 n/a n/a n/a
2025-05-12 2025-03-31 13F ISHARES TR PUT Put 250 3,025.00 157 3,040.00 n/a n/a n/a
2025-06-06 2024-12-31 13F/A ISHARES TR PUT Put 8 -84.00 0 -100.00 n/a n/a n/a
2025-06-06 2024-12-31 13F/A ISHARES TR PUT Put 35 5 n/a n/a n/a
2025-02-07 2024-12-31 13F ISHARES TR PUT Put 50 7 n/a n/a n/a
2024-11-13 2024-09-30 13F ISHARES TR PUT Put 50 85.19 7 n/a n/a n/a
2024-08-13 2024-06-30 13F ISHARES TR PUT Put 27 0.00 0 n/a n/a n/a
2024-05-10 2024-03-31 13F ISHARES TR PUT Put 27 0 n/a n/a n/a
2023-08-21 2023-06-30 13F/A ISHARES TR PUT PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-08-10 2023-06-30 13F ISHARES TR PUT PUT Put 0 0 n/a n/a n/a
2023-05-12 2023-03-31 13F ISHARES TR PUT PUT Put 10 2 n/a n/a n/a
2023-02-10 2022-12-31 13F ISHARES TR PUT CHINA LG-CAP ETF Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-11-14 2022-09-30 13F ISHARES TR PUT CHINA LG-CAP ETF Put 200 0.00 286 150.88 n/a n/a n/a
2022-08-10 2022-06-30 13F ISHARES TR PUT CHINA LG-CAP ETF Put 200 0.00 114 -34.10 n/a n/a n/a
2022-05-04 2022-03-31 13F ISHARES TR PUT CHINA LG-CAP ETF Put 200 173 n/a n/a n/a
2022-02-03 2021-12-31 13F ISHARES TR PUT RUSSELL 2000 ETF Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-11-05 2021-09-30 13F ISHARES TR PUT RUSSELL 2000 ETF Put 12 2 n/a n/a n/a
2021-11-05 2021-09-30 13F ISHARES TR PUT MSCI EMG MKT ETF Put 20 3 n/a n/a n/a
2021-08-02 2021-06-30 13F ISHARES TR PUT RUS 1000 GRW ETF Put 0 -100.00 0 n/a n/a n/a
2021-05-13 2021-03-31 13F ISHARES TR PUT RUS 1000 GRW ETF Put 3 -50.00 0 -100.00 n/a n/a n/a
2021-02-10 2020-12-31 13F ISHARES TR PUT RUS 1000 GRW ETF Put 6 100.00 1 -66.67 n/a n/a n/a
2020-11-12 2020-09-30 13F ISHARES TR PUT RUS 1000 GRW ETF Put 3 -62.50 3 -57.14 n/a n/a n/a
2020-08-14 2020-06-30 13F ISHARES TR PUT RUS 1000 GRW ETF Put 8 60.00 7 75.00 n/a n/a n/a
2020-05-18 2020-03-31 13F ISHARES TR PUT RUS 1000 GRW ETF Put 5 4 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.