IJH vs IWM ETF holdings comparison
iShares Core S&P Mid-Cap ETF (IJH) · iShares Russell 2000 ETF (IWM)
IJH and IWM overlap by 11.2% by portfolio weight. The remaining 88.8 percentage points are not counted as shared holdings weight by this calculation. They share 79 stocks; the largest shared position is MOOG INC (MOG.A), contributing 0.33% to the overlap.
What this means
IJH and IWM share a smaller portion of their portfolio weight in the same underlying stocks. OverlapCheck labels this "low holdings overlap" using house ranges of 70% or more, 30% to under 70%, and under 30%. These descriptive ranges are not industry standards or investment guidance. Holdings overlap does not measure correlation, volatility, geographic or factor exposure, fees, or suitability.
Overlap by weight sums the smaller of the two funds' weights for every stock they both hold. It answers "how much of my money is in the same stocks either way?" See methodology.
This comparison covers normalized equity positions represented in the dataset. Cash, derivatives, options, structured notes, and other non-equity assets are not included, so the result is not a complete comparison of every asset or risk in either fund.
Top shared holdings
| Company | Ticker | in IJH | in IWM |
|---|---|---|---|
| MOOG INC | MOG.A | 0.33% | 0.38% |
| CYTOKINETICS INC | CYTK | 0.32% | 0.35% |
| UMB FINANCIAL CORP | UMBF | 0.28% | 0.33% |
| CARETRUST REIT INC | CTRE | 0.26% | 0.28% |
| OLD NATIONAL BANCORP | ONB | 0.25% | 0.28% |
| ENERSYS | ENS | 0.24% | 0.27% |
| FIRSTCASH HOLDINGS INC | FCFS | 0.23% | 0.28% |
| TEREX CORP | TEX | 0.23% | 0.26% |
| HEALTHEQUITY INC | HQY | 0.21% | 0.24% |
| HIMS & HERS HEALTH INC | HIMS | 0.20% | 0.23% |
Holdings only in IJH or IWM
IJH has 321 fund-only positions representing approximately 88.5 percentage points of reported exposure; IWM has 1907 fund-only positions representing approximately 87.0 percentage points of reported exposure. These are positions whose normalized security identifiers appear in one issuer file but not the other.
Largest positions only in IJH
| Company | Ticker | Weight |
|---|---|---|
| TWILIO INC | TWLO | 0.86% |
| CARPENTER TECHNOLOGY CORP | CRS | 0.84% |
| MKS INC | MKSI | 0.83% |
| CURTISS-WRIGHT CORP | CW | 0.77% |
| ENTEGRIS INC | ENTG | 0.76% |
| NVENT ELECTRIC PLC | NVT | 0.76% |
| ATI INC | ATI | 0.74% |
| ILLUMINA INC | ILMN | 0.73% |
| TECHNIPFMC PLC | FTI | 0.73% |
| STERLING INFRASTRUCTURE INC | STRL | 0.71% |
Largest positions only in IWM
| Company | Ticker | Weight |
|---|---|---|
| Hut 8 Corp. | HUT | 0.37% |
| Viasat, Inc. | VSAT | 0.35% |
| BrightSpring Health Services, Inc. | BTSG | 0.35% |
| MaxLinear, Inc. | MXL | 0.34% |
| Argan, Inc. | AGX | 0.34% |
| JFrog Ltd. | FROG | 0.31% |
| Riot Platforms, Inc. | RIOT | 0.30% |
| Krystal Biotech, Inc. | KRYS | 0.30% |
| ESCO Technologies, Inc. | ESE | 0.29% |
| Compass, Inc. | COMP | 0.27% |
FAQ
How much do IJH and IWM overlap?
IJH and IWM have 11.2% overlap by weight, sharing 79 equity positions (out of 400 in IJH and 1986 in IWM). The official holdings files used are dated 2026-06-30 for IJH and 2026-06-30 for IWM.
What does 11.2% overlap mean?
IJH and IWM share a smaller portion of their portfolio weight in the same underlying stocks. OverlapCheck labels this "low holdings overlap" using house ranges of 70% or more, 30% to under 70%, and under 30%. These descriptive ranges are not industry standards or investment guidance. Holdings overlap does not measure correlation, volatility, geographic or factor exposure, fees, or suitability.
Which stocks do IJH and IWM both hold?
The largest shared positions are MOOG INC, CYTOKINETICS INC, UMB FINANCIAL CORP, CARETRUST REIT INC, OLD NATIONAL BANCORP. The top shared holdings with weights in each fund are shown on this page.
What holdings are different between IJH and IWM?
IJH has 321 positions not found in IWM, while IWM has 1907 positions not found in IJH. The largest fund-only positions and their weights are shown on this page.