ETF · holdings as filed 2026-06-30
What's inside IWC?
iShares Micro-Cap ETF
- Holdings
- 1,382
- positions in the fund
- Top 10
- 20%
- of fund assets
- Expense ratio
- 0.60%
- net, per year
- Fund size
- $2B
- total net assets
Top 20 holdings
| Rank | Logo | Ticker / Name | Weight | |
|---|---|---|---|---|
| 1 | B  | BISXXBCF INSTITUTIONAL-SL AGNCY | 15.75% | |
| 2 | O  | OUSTOUSTER INC | 0.73% | |
| 3 | P  | PENGPENGUIN SOLUTIONS INC | 0.71% | |
| 4 | S  | SLSSELLAS LIFE SCIENCES GROUP I | 0.52% | |
| 5 | I  | INODINNODATA INC | 0.45% | |
| 6 | N  | NRIXNURIX THERAPEUTICS INC | 0.43% | |
| 7 | T  | TILEINTERFACE INC | 0.39% | |
| 8 | F  | FCELFUELCELL ENERGY INC | 0.36% | |
| 9 | B  | BANDBANDWIDTH INC-CLASS A | 0.35% | |
| 10 | V  | VPGVISHAY PRECISION GROUP | 0.34% | |
| 11 | B  | BFLYBUTTERFLY NETWORK INC | 0.33% | |
| 12 | G  | GLUEMONTE ROSA THERAPEUTICS INC | 0.33% | |
| 13 | M  | MBXMBX BIOSCIENCES INC | 0.32% | |
| 14 | A  | AIPARTERIS INC | 0.32% | |
| 15 | T  | TET1 ENERGY INC | 0.32% | |
| 16 | E  | EFCELLINGTON FINANCIAL INC | 0.32% | |
| 17 | D  | DCOMDIME COMMERCIAL BANCSHARES I | 0.31% | |
| 18 | V  | VRDNVIRIDIAN THERAPEUTICS INC | 0.31% | |
| 19 | A  | AMBQAMBIQ MICRO INC | 0.30% | |
| 20 | C  | CNOBCONNECTONE BANCORP INC | 0.30% |
Top holdings — Health Care
Your 10 largest positions in this sector
1
S
SLSSELLAS LIFE SCIENCES GROUP I
0.52%2
N
NRIXNURIX THERAPEUTICS INC
0.43%3
B
BFLYBUTTERFLY NETWORK INC
0.33%4
G
GLUEMONTE ROSA THERAPEUTICS INC
0.33%5
M
MBXMBX BIOSCIENCES INC
0.32%6
V
VRDNVIRIDIAN THERAPEUTICS INC
0.31%7
U
URGNUROGEN PHARMA LTD
0.29%8
A
ALNTALLIENT INC
0.28%9
C
CDNACAREDX INC
0.27%10
N
NUVBNUVATION BIO INC
0.27%Top holdings — United States
Your 10 largest positions in this country
1
B
BISXXBCF INSTITUTIONAL-SL AGNCY
15.75%2
O
OUSTOUSTER INC
0.73%3
P
PENGPENGUIN SOLUTIONS INC
0.71%4
S
SLSSELLAS LIFE SCIENCES GROUP I
0.52%5
I
INODINNODATA INC
0.45%6
N
NRIXNURIX THERAPEUTICS INC
0.43%7
T
TILEINTERFACE INC
0.39%8
F
FCELFUELCELL ENERGY INC
0.36%9
B
BANDBANDWIDTH INC-CLASS A
0.35%10
V
VPGVISHAY PRECISION GROUP
0.34%Geography reflects each issuer's registered business address per SEC EDGAR filings where available, falling back to the exchange or listing where no SEC filing exists — not necessarily where a company's stock is primarily listed (e.g. TSMC is classified as Taiwan even though its ADR trades on the NYSE).
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Data source: official SEC Form N-PORT filings (as of 2026-06-30); expense ratio from SEC prospectus (risk/return) filings. Fund holdings are disclosed quarterly and may reflect a 60-day reporting delay.
Informational and educational only — not investment advice.
Informational and educational only — not investment advice.