IYZ vs FCOM: Holdings Overlap
IYZiShares U.S. Telecommunications ETF
iShares · 21 holdings · $1.3B · as of 2026-03-31
FCOMFidelity MSCI Communication Services Index ETF
Fidelity · 89 holdings · $1.7B · as of 2026-04-30
Holdings snapshots are 30 days apart (IYZ: 2026-03-31, FCOM: 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 IYZ and FCOM?
iShares U.S. Telecommunications ETF (IYZ, by iShares) holds 21 positions; Fidelity MSCI Communication Services Index ETF (FCOM, by Fidelity) holds 89. They have 13 holdings in common, and by portfolio weight the two funds are 17.0% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 17.0%Sum of the smaller weight of each shared holding
- Shared Holdings
- 13IYZ holds 21 · FCOM holds 89
- Weight in Shared Holdings
- IYZ 58%·FCOM 17%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 IYZ
8 of 21 positions (42.3% of the fund) are not held by FCOM.
Sector Breakdown
| Sector | IYZ | FCOM |
|---|---|---|
| Communication Services | 61.4% | 99.8% |
| Information Technology | 38.4% | 0.0% |
| 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 |
|---|---|---|---|---|---|---|---|
| IYZ | +7.6% | +29.6% | +46.8% | +27.9% | +7.6% | +5.2% | 1.61% |
| FCOM | -1.3% | -2.9% | +8.4% | +20.2% | +6.1% | +10.5% | 0.99% |
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 IYZ vs FCOM →
Shared Holdings(13)
The top 10 shared positions account for 99% of the overlap, led by VZ, T and CMCSA.
 VZVerizon Communications Inc. COM | 13.44% | 4.18% | 4.18% |
|---|---|---|---|
 TAT&T Inc COM | 12.84% | 3.88% | 3.88% |
 CMCSAComcast Corporation CL A | 3.97% | 2.69% | 2.69% |
 TMUST-Mobile US Inc COM | 4.10% | 2.68% | 2.68% |
 ASTSAST SpaceMobile, Inc., Class A | 3.27% | 1.00% | 1.00% |
 ROKURoku, Inc., Class A | 3.23% | 0.92% | 0.92% |
 CHTRCharter Communications, Inc., Class A | 3.35% | 0.84% | 0.84% |
 LBRDKLiberty Broadband Corporation COM SER C | 2.85% | 0.27% | 0.27% |
 IRDMIridium Communications, Inc. COM | 3.74% | 0.22% | 0.22% |
 LBTYALiberty Global Ltd., Class A | 1.89% | 0.12% | 0.12% |
 LBTYKLiberty Global Ltd., Class C | 1.43% | 0.09% | 0.09% |
 GLIBKGCI Liberty, Inc., Class C | 3.03% | 0.07% | 0.07% |
 LBRDALiberty Broadband Corporation COM SER A | 0.41% | 0.04% | 0.04% |
Frequently Asked Questions
How much do IYZ and FCOM overlap?
IYZ and FCOM overlap by 17.0% of portfolio weight. They share 13 holdings (IYZ holds 21 positions and FCOM holds 89), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IYZ and FCOM?
The two portfolios are 17.0% identical by weight. Owning both is not redundant. Most of each portfolio is distinct, so the funds can serve different roles.
What are the biggest shared holdings of IYZ and FCOM?
The largest positions held by both funds are VZ, T, CMCSA, TMUS and ASTS. Together the top 10 shared positions account for 99% of the total overlap.
What does IYZ own that FCOM doesn't?
8 positions (42.3% of IYZ) are unique to IYZ, led by CSCO, CIEN and ANET. In the other direction, 76 positions (82.8% of FCOM) are unique to FCOM.