iShares Trust - iShares 美國基礎材料 ETF
US ˙ ARCA ˙ US4642878387

SecurityIYM / iShares Trust - iShares U.S. Basic Materials ETF
InstitutionBlackRock, Inc.
Latest Disclosed Ownership777 shares
Latest Disclosed Value $ 136,690
BlackRock, Inc. reports 25.32% increase in ownership of IYM / iShares Trust - iShares U.S. Basic Materials ETF

On May 13, 2026 - BlackRock, Inc. filed a 13F-HR form disclosing ownership of 777 shares of iShares Trust - iShares U.S. Basic Materials ETF (US:IYM) valued at $136,690 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 620 shares of iShares Trust - iShares U.S. Basic Materials ETF. This represents a change in shares of 25.32% during the quarter. The current value of the position is $145,773 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)
2026-05-13 2026-03-31 13F ISHARES TR U.S. BAS MTL ETF 464287838 777 157 25.32 137 43.16 0.0000
2026-02-12 2025-12-31 13F ISHARES TR U.S. BAS MTL ETF 464287838 620 210 51.22 95 58.33 0.0000
2025-11-12 2025-09-30 13F ISHARES TR U.S. BAS MTL ETF 464287838 410 0 0.00 61 5.26 0.0000
2025-08-12 2025-06-30 13F ISHARES TR U.S. BAS MTL ETF 464287838 410 0 0.00 57 3.64 0.0000
2025-05-02 2025-03-31 13F ISHARES TR U.S. BAS MTL ETF 464287838 410 409 40,900.00 55 0.0000
2024-08-13 2024-06-30 13F ISHARES TR U.S. BAS MTL ETF 464287838 1 0 0.00 0 0.0000
2024-05-10 2024-03-31 13F ISHARES TR U.S. BAS MTL ETF 464287838 1 1 0 0.0000
2023-08-11 2023-06-30 13F ISHARES TR U.S. BAS MTL ETF 464287838 0 -33 -100.00 0 -100.00
2023-05-12 2023-03-31 13F ISHARES TR U.S. BAS MTL ETF 464287838 33 33 4 0.0000
2022-11-14 2022-09-30 13F ISHARES TR U.S. BAS MTL ETF 464287838 0 -13,786 -100.00 0 -100.00
2022-08-12 2022-06-30 13F ISHARES TR U.S. BAS MTL ETF 464287838 13,786 6,605 91.98 1,623 51.12 0.0001
2022-05-12 2022-03-31 13F ISHARES TR U.S. BAS MTL ETF 464287838 7,181 -1,404 -16.35 1,074 -10.80 0.0000
2022-02-10 2021-12-31 13F ISHARES TR U.S. BAS MTL ETF 464287838 8,585 8,585 1,204 0.0000
2020-11-06 2020-09-30 13F ISHARES TR U.S. BAS MTL ETF 464287838 0 -130 -100.00 0 -100.00
2020-08-14 2020-06-30 13F ISHARES TR U.S. BAS MTL ETF 464287838 130 0 0.00 12 33.33 0.0000
2020-05-01 2020-03-31 13F ISHARES TR U.S. BAS MTL ETF 464287838 130 0 0.00 9 -30.77 0.0000
2020-02-13 2019-12-31 13F ISHARES TR U.S. BAS MTL ETF 464287838 130 0 0.00 13 8.33 0.0000
2019-11-08 2019-09-30 13F ISHARES TR U.S. BAS MTL ETF 464287838 130 0 0.00 12 0.00 0.0000
2019-08-22 2019-06-30 13F/A-1 ISHARES TR U.S. BAS MTL ETF 464287838 130 0 0.00 12 0.00 0.0000
2019-08-13 2019-06-30 13F ISHARES TR U.S. BAS MTL ETF 464287838 130 0 12
2019-05-09 2019-03-31 13F ISHARES TR U.S. BAS MTL ETF 464287838 130 130 12 0.0000
2017-05-12 2017-03-31 13F ISHARES TR U.S. BAS MTL ETF 464287838 0 -1,059 -100.00 0 -100.00
2017-02-10 2016-12-31 13F ISHARES TR U.S. BAS MTL ETF 464287838 1,059 1,059 88 0.0001
2016-05-10 2016-03-31 13F ISHARES TR U.S. BAS MTL ETF 464287838 0 -1 -100.00 0 0.0000
2016-02-11 2015-12-31 13F ISHARES TR U.S. BAS MTL ETF 464287838 1 1 0 0.0000
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.