IEO vs FENY: Holdings Overlap
IEOiShares U.S. Oil & Gas Exploration & Production ETF
iShares · 46 holdings · $559M · as of 2026-03-31
FENYFidelity MSCI Energy Index ETF
Fidelity · 98 holdings · $2.0B · as of 2026-04-30
Holdings snapshots are 30 days apart (IEO: 2026-03-31, FENY: 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 FENY?
iShares U.S. Oil & Gas Exploration & Production ETF (IEO, by iShares) holds 46 positions; Fidelity MSCI Energy Index ETF (FENY, by Fidelity) holds 98. They have 41 holdings in common, and by portfolio weight the two funds are 32.9% identical. In practical terms the pair is moderately overlapping; they share a meaningful core, but each fund adds distinct exposure.
- Overlap by Weight
- 32.9%Sum of the smaller weight of each shared holding
- Shared Holdings
- 41IEO holds 46 · FENY holds 98
- Weight in Shared Holdings
- IEO 98%·FENY 33%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
5 of 46 positions (1.5% of the fund) are not held by FENY.
Sector Breakdown
| Sector | IEO | FENY |
|---|---|---|
| Energy | 99.9% | 99.7% |
| 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% |
| FENY | +5.2% | +30.6% | +40.9% | +13.4% | +22.8% | +9.3% | 2.43% |
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 FENY →
Shared Holdings(41)
The top 10 shared positions account for 74% of the overlap, led by COP, VLO and EOG.
 COPConocoPhillips COM | 19.46% | 6.09% | 6.09% |
|---|---|---|---|
 VLOValero Energy Corp. COM | 9.07% | 3.05% | 3.05% |
 EOGEOG Resources Inc. COM | 9.44% | 2.97% | 2.97% |
 MPCMarathon Petroleum Corp. COM | 4.43% | 2.94% | 2.94% |
 PSXPhillips 66 COM | 7.29% | 2.82% | 2.82% |
 FANGDiamondback Energy Inc COM | 4.81% | 1.52% | 1.52% |
 EQTEQT Corporation COM | 4.11% | 1.48% | 1.48% |
 DVNDevon Energy Corporation COM | 4.47% | 1.23% | 1.23% |
 CTRACoterra Energy Inc COM | 3.82% | 1.09% | 1.09% |
 TPLTexas Pacific Land Corporation COM | 3.72% | 1.04% | 1.04% |
 EXEExpand Energy Corp. COM | 3.75% | 0.97% | 0.97% |
 OVVOvintiv Inc COM | 2.36% | 0.72% | 0.72% |
 PRPermian Resources Corporation Class A | 2.26% | 0.63% | 0.63% |
 APAAPA Corp. COM | 2.16% | 0.61% | 0.61% |
 ARAntero Resources Corporation COM | 1.78% | 0.48% | 0.48% |
 DINOHF Sinclair Corporation | 1.40% | 0.45% | 0.45% |
 RRCRange Resources Corporation | 1.53% | 0.44% | 0.44% |
 VNOMViper Energy Inc. CL A | 1.25% | 0.40% | 0.40% |
 CHRDChord Energy Corp. COM NEW | 1.16% | 0.37% | 0.37% |
 MTDRMatador Resources Company COM | 1.06% | 0.33% | 0.33% |
 SMSM Energy Co. COM | 1.01% | 0.33% | 0.33% |
 MURMurphy Oil Corporation COM | 0.79% | 0.26% | 0.26% |
 MGYMagnolia Oil & Gas Corporation CL A | 0.82% | 0.24% | 0.24% |
 CNXCNX Resources Corporation COM | 0.79% | 0.24% | 0.24% |
 CRCCalifornia Resources Corporation COM STOCK | 0.78% | 0.22% | 0.22% |
Frequently Asked Questions
How much do IEO and FENY overlap?
IEO and FENY overlap by 32.9% of portfolio weight. They share 41 holdings (IEO holds 46 positions and FENY holds 98), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IEO and FENY?
The two portfolios are 32.9% 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 FENY?
The largest positions held by both funds are COP, VLO, EOG, MPC and PSX. Together the top 10 shared positions account for 74% of the total overlap.
What does IEO own that FENY doesn't?
5 positions (1.5% of IEO) are unique to IEO, led by VG, GPRE and EGY. In the other direction, 57 positions (66.8% of FENY) are unique to FENY.