IEO vs IYW: Holdings Overlap
IEOiShares U.S. Oil & Gas Exploration & Production ETF
iShares · 46 holdings · $559M · as of 2026-03-31
IYWiShares U.S. Technology ETF
iShares · 139 holdings · $25.2B · as of 2026-04-30
Holdings snapshots are 30 days apart (IEO: 2026-03-31, IYW: 2026-04-30). Weights and index membership change between snapshots, so the true current overlap is typically higher than shown. For funds tracking the same index, the gap can be 5–15 points.
How similar are IEO and IYW?
iShares U.S. Oil & Gas Exploration & Production ETF (IEO, by iShares) holds 46 positions; iShares U.S. Technology ETF (IYW, by iShares) holds 139. They have 0 holdings in common, and by portfolio weight the two funds are 0.0% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 0.0%Sum of the smaller weight of each shared holding
- Shared Holdings
- 0IEO holds 46 · IYW holds 139
- Weight in Shared Holdings
- IEO 0%·IYW 0%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 IEO
46 of 46 positions (99.9% of the fund) are not held by IYW. Showing the top 30 by weight.
Sector Breakdown
| Sector | IEO | IYW |
|---|---|---|
| Energy | 99.9% | 0.0% |
| Information Technology | 0.0% | 80.4% |
| Communication Services | 0.0% | 17.9% |
| Industrials | 0.0% | 1.0% |
| Consumer Discretionary | 0.0% | 0.4% |
| Other Sectors | 0.0% | 0.1% |
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 |
|---|---|---|---|---|---|---|---|
| IEO | +6.1% | +34.9% | +40.9% | +10.4% | +22.1% | +10.3% | 1.95% |
| IYW | +4.4% | +27.3% | +39.7% | +32.8% | +19.8% | +24.9% | 0.10% |
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 IEO vs IYW →
Shared Holdings(0)
These two funds have no holdings in common.
Frequently Asked Questions
How much do IEO and IYW overlap?
IEO and IYW overlap by 0.0% of portfolio weight. They share 0 holdings (IEO holds 46 positions and IYW holds 139), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IEO and IYW?
The two portfolios are 0.0% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What does IEO own that IYW doesn't?
46 positions (99.9% of IEO) are unique to IEO, led by COP, EOG and VLO. In the other direction, 139 positions (99.9% of IYW) are unique to IYW.