William Blair & Company’s iShares US Basic Materials ETF IYM Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $932K | Buy |
5,192
+766
| +17% | +$140K | ﹤0.01% | 1005 |
|
|
2026
Q1 | $779K | Buy |
4,426
+3,898
| +738% | +$682K | ﹤0.01% | 1019 |
|
|
2025
Q4 | $81.3K | Hold |
528
| – | – | ﹤0.01% | 1601 |
|
|
2025
Q3 | $78.2K | Buy |
528
+469
| +795% | +$68.5K | ﹤0.01% | 1594 |
|
|
2025
Q2 | $8.22K | Hold |
59
| – | – | ﹤0.01% | 1742 |
|
|
2025
Q1 | $7.89K | Buy |
59
+1
| +2% | +$136 | ﹤0.01% | 1729 |
|
|
2024
Q4 | $7.58K | Sell |
58
-405
| -87% | -$58.5K | ﹤0.01% | 1749 |
|
|
2024
Q3 | $69.5K | Sell |
463
-169
| -27% | -$24.1K | ﹤0.01% | 1587 |
|
|
2024
Q2 | $88.5K | Buy |
632
+405
| +178% | +$58.2K | ﹤0.01% | 1526 |
|
|
2024
Q1 | $33.5K | Buy |
227
+12
| +6% | +$1.65K | ﹤0.01% | 1643 |
|
|
2023
Q4 | $29.7K | Buy |
215
+11
| +5% | +$1.41K | ﹤0.01% | 1633 |
|
|
2023
Q3 | $25.7K | Buy |
204
+121
| +146% | +$16K | ﹤0.01% | 1659 |
|
|
2023
Q2 | $11K | Sell |
83
-765
| -90% | -$98.6K | ﹤0.01% | 1728 |
|
|
2023
Q1 | $112K | Buy |
848
+1
| +0.1% | +$133 | ﹤0.01% | 1485 |
|
|
2022
Q4 | $106K | Hold |
847
| – | – | ﹤0.01% | 1480 |
|
|
2022
Q3 | $92K | Buy |
847
+331
| +64% | +$39.7K | ﹤0.01% | 1519 |
|
|
2022
Q2 | $61K | Buy |
516
+1
| +0.2% | +$138 | ﹤0.01% | 1602 |
|
|
2022
Q1 | $77K | Buy |
515
+275
| +115% | +$38K | ﹤0.01% | 1659 |
|
|
2021
Q4 | $34K | Hold |
240
| – | – | ﹤0.01% | 1807 |
|
|
2021
Q3 | $30K | Hold |
240
| – | – | ﹤0.01% | 1735 |
|
|
2021
Q2 | $31K | Buy |
240
+1
| +0.4% | +$134 | ﹤0.01% | 1743 |
|
|
2021
Q1 | $30K | Hold |
239
| – | – | ﹤0.01% | 1717 |
|
|
2020
Q4 | $27K | Sell |
239
-84
| -26% | -$8.95K | ﹤0.01% | 1680 |
|
|
2020
Q3 | $32K | Buy |
323
+100
| +45% | +$9.82K | ﹤0.01% | 1544 |
|
|
2020
Q2 | $20K | Hold |
223
| – | – | ﹤0.01% | 1535 |
|
|
2020
Q1 | $15K | Sell |
223
-17
| -7% | -$1.46K | ﹤0.01% | 1528 |
|
|
2019
Q4 | $24K | Hold |
240
| – | – | ﹤0.01% | 1560 |
|
|
2019
Q3 | $22K | Hold |
240
| – | – | ﹤0.01% | 1534 |
|
|
2019
Q2 | $23K | Buy |
240
+19
| +9% | +$1.75K | ﹤0.01% | 1571 |
|
|
2019
Q1 | $21K | Sell |
221
-191
| -46% | -$17.1K | ﹤0.01% | 1561 |
|
|
2018
Q4 | $35K | Sell |
412
-521
| -56% | -$46.6K | ﹤0.01% | 1432 |
|
|
2018
Q3 | $92K | Buy |
933
+371
| +66% | +$37.3K | ﹤0.01% | 1391 |
|
|
2018
Q2 | $56K | Hold |
562
| – | – | ﹤0.01% | 1404 |
|
|
2018
Q1 | $54K | Buy |
+562
| New | +$57.6K | ﹤0.01% | 1332 |
|
Other funds holding IYM
UFF
CFA
CB
FIA
MWM
William Blair & Company's IYM Position: Q2 2026 in Review
William Blair & Company increased its iShares US Basic Materials ETF (IYM) stake by 17% in Q2 2026, buying an estimated $140K and bringing the position to 5,192 shares worth $932K. The position accounts for ﹤0.01% of the portfolio, ranked #1005.
William Blair & Company first reported a position in IYM in Q1 2018 and has held it in 34 quarters since. 273 funds tracked by Wall St. Rank hold IYM as of Q2 2026.
- William Blair & Company held 5,192 shares of iShares US Basic Materials ETF worth $932K as of Q2 2026.
- William Blair & Company bought 766 iShares US Basic Materials ETF shares in Q2 2026, an estimated $140K.
- iShares US Basic Materials ETF made up ﹤0.01% of William Blair & Company's portfolio in Q2 2026, its #1005 holding.
- William Blair & Company first reported a position in iShares US Basic Materials ETF in Q1 2018 and has held it in 34 quarters since.
- 273 funds tracked by Wall St. Rank held iShares US Basic Materials ETF as of Q2 2026.
Based on William Blair & Company's 13F filing for Q2 2026, filed 11 Aug 2026.