IEO vs RSPG: Holdings Overlap
IEOiShares U.S. Oil & Gas Exploration & Production ETF
iShares · 46 holdings · $559M · as of 2026-03-31
RSPGInvesco S&P 500 Equal Weight Energy ETF
Invesco · 22 holdings · $568M · as of 2026-04-30
Holdings snapshots are 30 days apart (IEO: 2026-03-31, RSPG: 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 RSPG?
iShares U.S. Oil & Gas Exploration & Production ETF (IEO, by iShares) holds 46 positions; Invesco S&P 500 Equal Weight Energy ETF (RSPG, by Invesco) holds 22. They have 12 holdings in common, and by portfolio weight the two funds are 49.1% identical. In practical terms the pair is moderately overlapping; they share a meaningful core, but each fund adds distinct exposure.
- Overlap by Weight
- 49.1%Sum of the smaller weight of each shared holding
- Shared Holdings
- 12IEO holds 46 · RSPG holds 22
- Weight in Shared Holdings
- IEO 77%·RSPG 54%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
34 of 46 positions (23.4% of the fund) are not held by RSPG. Showing the top 30 by weight.
Sector Breakdown
| Sector | IEO | RSPG |
|---|---|---|
| Energy | 99.9% | 100.0% |
| Other Sectors | 0.0% | 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.
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% |
| RSPG | +3.2% | +30.6% | +43.1% | +13.6% | +23.6% | +9.0% | 2.03% |
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 RSPG →
Shared Holdings(12)
The top 10 shared positions account for 88% of the overlap, led by FANG, VLO and COP.
 FANGDiamondback Energy Inc COM | 4.81% | 4.92% | 4.81% |
|---|---|---|---|
 VLOValero Energy Corp. COM | 9.07% | 4.62% | 4.62% |
 COPConocoPhillips COM | 19.46% | 4.54% | 4.54% |
 EOGEOG Resources Inc. COM | 9.44% | 4.49% | 4.49% |
 DVNDevon Energy Corporation COM | 4.47% | 4.79% | 4.47% |
 PSXPhillips 66 COM | 7.29% | 4.47% | 4.47% |
 MPCMarathon Petroleum Corp. COM | 4.43% | 4.63% | 4.43% |
 EQTEQT Corporation COM | 4.11% | 3.98% | 3.98% |
 CTRACoterra Energy Inc COM | 3.82% | 4.84% | 3.82% |
 EXEExpand Energy Corp. COM | 3.75% | 3.98% | 3.75% |
 TPLTexas Pacific Land Corporation COM | 3.72% | 3.57% | 3.57% |
 APAAPA Corp. COM | 2.16% | 5.22% | 2.16% |
Frequently Asked Questions
How much do IEO and RSPG overlap?
IEO and RSPG overlap by 49.1% of portfolio weight. They share 12 holdings (IEO holds 46 positions and RSPG holds 22), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IEO and RSPG?
The two portfolios are 49.1% identical by weight. Owning both is defensible: they share a meaningful core, but each fund adds exposure the other lacks.
What are the biggest shared holdings of IEO and RSPG?
The largest positions held by both funds are FANG, VLO, COP, EOG and DVN. Together the top 10 shared positions account for 88% of the total overlap.
What does IEO own that RSPG doesn't?
34 positions (23.4% of IEO) are unique to IEO, led by OVV, PR and AR. In the other direction, 10 positions (45.9% of RSPG) are unique to RSPG.