IWN vs OIH: Holdings Overlap
IWNiShares Russell 2000 Value ETF
iShares · 1406 holdings · $14.7B · as of 2026-03-31
VanEck · 25 holdings · $1.9B · as of 2026-03-31
How similar are IWN and OIH?
iShares Russell 2000 Value ETF (IWN, by iShares) holds 1406 positions; VanEck Oil Services ETF (OIH, by VanEck) holds 25. They have 16 holdings in common, and by portfolio weight the two funds are 2.8% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 2.8%Sum of the smaller weight of each shared holding
- Shared Holdings
- 16IWN holds 1406 · OIH holds 25
- Weight in Shared Holdings
- IWN 3%·OIH 36%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 IWN
1390 of 1406 positions (96.9% of the fund) are not held by OIH. Showing the top 30 by weight.
Sector Breakdown
| Sector | IWN | OIH |
|---|---|---|
| Energy | 8.5% | 99.9% |
| Financials | 22.4% | 0.0% |
| Industrials | 11.9% | 0.0% |
| Health Care | 10.0% | 0.0% |
| Consumer Discretionary | 8.7% | 0.0% |
| Other Sectors | 31.1% | 0.0% |
| Unclassified | 7.1% | 0.0% |
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. “Unclassified” is weight we could not classify (7% of IWN, 0% of OIH).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| IWN | +2.4% | +25.3% | +42.6% | +16.8% | +9.0% | +10.2% | 1.41% |
| OIH | +6.0% | +36.4% | +67.5% | +6.4% | +17.5% | -2.1% | 1.25% |
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 IWN vs OIH →
Shared Holdings(16)
The top 10 shared positions account for 90% of the overlap, led by NE, RIGN and VAL.
 NENoble Corp. plc | 0.43% | 4.64% | 0.43% |
|---|---|---|---|
 RIGNTransocean Ltd. | 0.42% | 4.50% | 0.42% |
 VALValaris Ltd. | 0.42% | 4.01% | 0.42% |
 LBRTLiberty Energy, Inc., Class A | 0.31% | 3.54% | 0.31% |
 PTENPatterson-UTI Energy, Inc. | 0.26% | 3.32% | 0.26% |
 HPHelmerich & Payne, Inc. | 0.25% | 2.64% | 0.25% |
| Expro Group Holdings NV | 0.10% | 1.05% | 0.10% |
 PUMPProPetro Holding Corp. | 0.10% | 1.48% | 0.10% |
 WTTRSelect Water Solutions, Inc., Class A | 0.09% | 1.63% | 0.09% |
 NBRNabors Industries Ltd. | 0.08% | 0.90% | 0.08% |
 HLXHelix Energy Solutions Group, Inc. | 0.07% | 1.14% | 0.07% |
 INVXInnovex International, Inc. | 0.07% | 0.85% | 0.07% |
 CLBCore Laboratories, Inc. | 0.05% | 0.26% | 0.05% |
 RESRPC, Inc. | 0.04% | 0.87% | 0.04% |
 OIIOceaneering International, Inc. | 0.03% | 2.72% | 0.03% |
 TDWTidewater, Inc. | 0.02% | 2.69% | 0.02% |
Frequently Asked Questions
How much do IWN and OIH overlap?
IWN and OIH overlap by 2.8% of portfolio weight. They share 16 holdings (IWN holds 1406 positions and OIH holds 25), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IWN and OIH?
The two portfolios are 2.8% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of IWN and OIH?
The largest positions held by both funds are NE, RIGN, VAL, LBRT and PTEN. Together the top 10 shared positions account for 90% of the total overlap.
What does IWN own that OIH doesn't?
1390 positions (96.9% of IWN) are unique to IWN, led by ECHO, TTMI and CDE. In the other direction, 9 positions (63.7% of OIH) are unique to OIH.