iShares Core S&P Mid-Cap ETF
iShares Trust · Series S000004307 · 1 share classes
data updated 2026-09-08
Fund profile
As filed in the prospectus · 2025 Q3
The iShares Core S&P Mid-Cap ETF (the Fund ) seeks to track the investment results of an index composed of mid-capitalization U.S. equities.
The fund tracks the S&P MidCap 400 Index using representative sampling, holding a sample of mid-capitalization U.S. equities with similar investment and fundamental characteristics to the index rather than all constituents. Because the fund may not hold all index securities, its returns may diverge from the index it seeks to track.
| Share class | Expense ratio |
|---|---|
| IJH | 0.05% |
Portfolio turnover 18.00% · as of 2025 Q3
Allocation
Asset groups · long / short shown separately, never netted · 2026 Q2
| Stocks | 99.77% |
| Cash & short-term | 3.98% |
| Derivatives | 0.00% |
Derivatives are shown at market value, not notional exposure.
Latest quarter
What changed since the fund's previous filing
Return profile
Total return as filed — price change plus distributions reinvested · trailing figures to Apr 2026
May 2026 and Jun 2026 have been filed since the trailing figures were struck, so they are not in the table above or the curve — every figure here shares one cut-off, which is what makes them comparable with other funds.
Holdings
By % of NAV · equity positions carry filed share counts · every resolvable issuer links to its company page
| Ticker | Issuer | %NAV | Reported price | Value | Shares |
|---|---|---|---|---|---|
| — | BLACKROCK GLOBAL | 3.84% | — | $4.77B | — |
| TWLO | TWILIO INCTWLO | 0.86% | $206.33 | $1.07B | 5.2M |
| CRS | CARPENTER TECHNOLOGY CORPCRS | 0.84% | $616.84 | $1.05B | 1.7M |
| MKSI | MKS INCMKSI | 0.83% | $444.80 | $1.03B | 2.3M |
| CW | CURTISS-WRIGHT CORPCW | 0.77% | $757.76 | $957.99M | 1.3M |
| ENTG | ENTEGRIS INCENTG | 0.76% | $179.86 | $938.67M | 5.2M |
| — | NVENT ELECTRIC PLC | 0.76% | $169.61 | $938.69M | 5.5M |
| ATI | ATI INCATI | 0.74% | $197.10 | $920.51M | 4.7M |
| ILMN | ILLUMINA INCILMN | 0.73% | $175.83 | $910.42M | 5.2M |
| — | TECHNIPFMC PLC | 0.73% | $66.30 | $904.63M | 13.6M |
Reported price is the fund's own reported value divided by its own reported shares at 2026-06-30 — not a live quote, and not what the fund paid.
Top 10 positions are 10.85% of net assets, top 25 20.27%, across 407 issuers.
See more of this fund's book
More positions with filed share counts, and the quarter-over-quarter change list rather than the largest few — free with an account, no card required.
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