IHI vs IWP: Holdings Overlap
IHIiShares U.S. Medical Devices ETF
iShares · 47 holdings · $3.4B · as of 2026-03-31
IWPiShares Russell Mid-Cap Growth ETF
iShares · 277 holdings · $20.5B · as of 2026-03-31
How similar are IHI and IWP?
iShares U.S. Medical Devices ETF (IHI, by iShares) holds 47 positions; iShares Russell Mid-Cap Growth ETF (IWP, by iShares) holds 277. They have 7 holdings in common, and by portfolio weight the two funds are 4.1% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 4.1%Sum of the smaller weight of each shared holding
- Shared Holdings
- 7IHI holds 47 · IWP holds 277
- Weight in Shared Holdings
- IHI 17%·IWP 4%Share of each fund's weight in stocks both funds own
Based on each fund's latest official holdings. How is this calculated?
What makes each fund different
Only in IHI
40 of 47 positions (82.7% of the fund) are not held by IWP. Showing the top 30 by weight.
Only in IWP
270 of 277 positions (95.8% of the fund) are not held by IHI. Showing the top 30 by weight.
Sector Breakdown
| Sector | IHI | IWP |
|---|---|---|
| Health Care | 99.8% | 14.9% |
| Industrials | 0.0% | 24.4% |
| Consumer Discretionary | 0.0% | 21.2% |
| Information Technology | 0.0% | 15.6% |
| Financials | 0.0% | 8.5% |
| Other Sectors | 0.0% | 15.3% |
Share of each fund's portfolio weight by GICS-style sector, compiled from issuer fund data and our own classification of the holdings, not the issuers' published sector charts.
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| IHI | +4.1% | -12.3% | -9.9% | +0.5% | -2.6% | +8.9% | 0.45% |
| IWP | +1.5% | +5.4% | +3.1% | +14.6% | +5.1% | +12.1% | 0.34% |
Total returns including dividends, from adjusted daily closes as of 2026-08-07. 3Y/5Y/10Y are annualized. Yield is trailing-12-month distributions over the last close. Past performance does not predict future results.
Project the growth of $10,000 in IHI vs IWP →
Shared Holdings(7)
The top 7 shared positions account for 100% of the overlap, led by IDXX, DXCM and PODD.
 IDXXIDEXX Laboratories Inc. COM | 4.44% | 1.61% | 1.61% |
|---|---|---|---|
 DXCMDexCom Inc COM | 3.28% | 0.88% | 0.88% |
 PODDInsulet Corporation COM | 2.00% | 0.53% | 0.53% |
 PENPenumbra Inc. COM | 1.75% | 0.45% | 0.45% |
| Masimo Corporation COM | 1.10% | 0.29% | 0.29% |
 RMDResMed Inc. COM | 4.43% | 0.28% | 0.28% |
 INSPInspire Medical Systems Inc COM | 0.18% | 0.05% | 0.05% |
Frequently Asked Questions
How much do IHI and IWP overlap?
IHI and IWP overlap by 4.1% of portfolio weight. They share 7 holdings (IHI holds 47 positions and IWP holds 277), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IHI and IWP?
The two portfolios are 4.1% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of IHI and IWP?
The largest positions held by both funds are IDXX, DXCM, PODD, PEN and Masimo Corporation COM. Together the top 7 shared positions account for 100% of the total overlap.
What does IHI own that IWP doesn't?
40 positions (82.7% of IHI) are unique to IHI, led by ABT, ISRG and SYK. In the other direction, 270 positions (95.8% of IWP) are unique to IWP.