IYZ vs VGT: Holdings Overlap
IYZiShares U.S. Telecommunications ETF
iShares · 21 holdings · $1.3B · as of 2026-03-31
VGTVanguard Information Technology Index Fund
Vanguard · 317 holdings · $147.3B · as of 2026-05-31
Holdings snapshots are 61 days apart (IYZ: 2026-03-31, VGT: 2026-05-31). 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 VGT?
iShares U.S. Telecommunications ETF (IYZ, by iShares) holds 21 positions; Vanguard Information Technology Index Fund (VGT, by Vanguard) holds 317. They have 5 holdings in common, and by portfolio weight the two funds are 3.5% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 3.5%Sum of the smaller weight of each shared holding
- Shared Holdings
- 5IYZ holds 21 · VGT holds 317
- Weight in Shared Holdings
- IYZ 35%·VGT 3%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
16 of 21 positions (64.9% of the fund) are not held by VGT.
Sector Breakdown
| Sector | IYZ | VGT |
|---|---|---|
| Information Technology | 38.4% | 99.0% |
| Communication Services | 61.4% | 0.6% |
| Consumer Discretionary | 0.0% | 0.1% |
| Financials | 0.0% | 0.1% |
| Industrials | 0.0% | 0.1% |
| 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% |
| VGT | +6.5% | +29.2% | +40.8% | +31.3% | +19.3% | +24.7% | 0.36% |
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 VGT →
Shared Holdings(5)
The top 5 shared positions account for 100% of the overlap, led by CSCO, ANET and CIEN.
 CSCOCisco Systems, Inc. COM | 19.13% | 1.85% | 1.85% |
|---|---|---|---|
 ANETArista Networks Inc COM SHS | 3.98% | 0.69% | 0.69% |
 CIENCiena Corporation COM NEW | 4.25% | 0.37% | 0.37% |
 MSIMotorola Solutions Inc COM NEW | 3.71% | 0.30% | 0.30% |
 LITELumentum Holdings Inc. COM | 3.88% | 0.28% | 0.28% |
Frequently Asked Questions
How much do IYZ and VGT overlap?
IYZ and VGT overlap by 3.5% of portfolio weight. They share 5 holdings (IYZ holds 21 positions and VGT holds 317), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IYZ and VGT?
The two portfolios are 3.5% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of IYZ and VGT?
The largest positions held by both funds are CSCO, ANET, CIEN, MSI and LITE. Together the top 5 shared positions account for 100% of the total overlap.
What does IYZ own that VGT doesn't?
16 positions (64.9% of IYZ) are unique to IYZ, led by VZ, T and TMUS. In the other direction, 312 positions (96.4% of VGT) are unique to VGT.