iShares U.S. Basic Materials ETF (IYM) is a iShares ETF with a 0.37% expense ratio, 43 holdings and $1.3B in net assets. Largest sector: Basic Materials (86%).
Fee
0.37%
expense ratio
Net assets
$1.3B
Launched
Jun 12, 2000
Holdings
43
as of Oct 16, 2026
Top 10 weight
68.3%
largest ten holdings
Largest sector
Basic Materials
86.2%
Yield
30-day SEC 1.19% · TTM 1.29%
as of Sep 30, 2026
Benchmark
Russell 1000 Basic Materials RIC 22.5/45 Capped Index
IYM's holdings are as of Oct 16, 2026.
Basic Materials
86.2%
Industrials
10.6%
Consumer Cyclical
3.2%
1
LIN
LINDE
20.02%
2
NEM
NEWMONT
10.94%
3
FCX
FREEPORT-MCMORAN
8.74%
4
ECL
ECOLAB
6.36%
5
APD
AIR PRODUCTS + CHEMICALS
4.69%
6
FAST
FASTENAL
4.38%
7
NUE
NUCOR
4.21%
8
ANG
Anglogold Ashanti
3.53%
9
STLD
STEEL DYNAMICS
3.02%
10
IFF
INTL FLAVORS + FRAGRANCES
2.37%
11
RS
RELIANCE
2.14%
12
RGLD
Royal Gold
2.07%
13
SCCO
SOUTHERN PERU COPPER
1.91%
14
CF
CF INDUSTRIES
1.89%
15
CRS
Carpenter Technology
1.86%
16
IP
INTERNATIONAL PAPER
1.83%
17
LYB
LYONDELLBASELL INDU CL A
1.69%
18
CDE
Coeur Mining
1.63%
19
RBC
RBC Bearings
1.59%
20
AVY
AVERY DENNISON
1.37%
21
MLI
Mueller Industries
1.33%
22
ALB
ALBEMARLE
1.15%
23
AA
Alcoa
1.12%
24
HL
Hecla Mining
0.99%
25
SOLS
Solstice Advanced Materials
0.96%
1–25 of 43
Funds listed by how much of their largest holdings they share with IYM — not a ranking.
Data from iShares; prices and returns from market data. Page updated October 29, 2026. Holdings and figures change over time. For information only — not investment advice.