IYW vs VOX: Holdings Overlap
IYWiShares U.S. Technology ETF
iShares · 139 holdings · $25.2B · as of 2026-04-30
VOXVanguard Communication Services Index Fund
Vanguard · 114 holdings · $5.9B · as of 2026-05-31
Holdings snapshots are 31 days apart (IYW: 2026-04-30, VOX: 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 IYW and VOX?
iShares U.S. Technology ETF (IYW, by iShares) holds 139 positions; Vanguard Communication Services Index Fund (VOX, by Vanguard) holds 114. They have 10 holdings in common, and by portfolio weight the two funds are 17.3% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 17.3%Sum of the smaller weight of each shared holding
- Shared Holdings
- 10IYW holds 139 · VOX holds 114
- Weight in Shared Holdings
- IYW 17%·VOX 50%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 IYW
129 of 139 positions (82.6% of the fund) are not held by VOX. Showing the top 30 by weight.
Sector Breakdown
| Sector | IYW | VOX |
|---|---|---|
| Communication Services | 17.9% | 99.7% |
| Information Technology | 80.4% | 0.0% |
| Industrials | 1.0% | 0.0% |
| Consumer Discretionary | 0.4% | 0.0% |
| Financials | 0.1% | 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 |
|---|---|---|---|---|---|---|---|
| IYW | +4.4% | +27.3% | +39.7% | +32.8% | +19.8% | +24.9% | 0.10% |
| VOX | -1.3% | -2.7% | +8.9% | +20.4% | +6.4% | +8.3% | 1.05% |
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 IYW vs VOX →
Shared Holdings(10)
The top 10 shared positions account for 100% of the overlap, led by GOOGL, GOOG and META.
 GOOGLAlphabet Inc. CAP STK CL A | 7.84% | 16.08% | 7.84% |
|---|---|---|---|
 GOOGAlphabet Inc. CAP STK CL C | 6.33% | 10.58% | 6.33% |
 METAMeta Platforms, Inc., Class A | 2.80% | 21.05% | 2.80% |
 RDDTReddit, Inc., Class A | 0.12% | 1.07% | 0.12% |
 PINSPinterest, Inc., Class A | 0.07% | 0.72% | 0.07% |
 MTCHMatch Group Inc COM | 0.05% | 0.49% | 0.05% |
 PPLIIAC Inc COM NEW | 0.02% | 0.18% | 0.02% |
 GTMZoominfo Technologies Inc COMMON STOCK | 0.01% | 0.05% | 0.01% |
 DJTTrump Media & Technology Group Corp COM | 0.01% | 0.09% | 0.01% |
 DVDoubleVerify Holdings Inc COM | 0.01% | 0.08% | 0.01% |
Frequently Asked Questions
How much do IYW and VOX overlap?
IYW and VOX overlap by 17.3% of portfolio weight. They share 10 holdings (IYW holds 139 positions and VOX holds 114), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IYW and VOX?
The two portfolios are 17.3% 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 IYW and VOX?
The largest positions held by both funds are GOOGL, GOOG, META, RDDT and PINS. Together the top 10 shared positions account for 100% of the total overlap.
What does IYW own that VOX doesn't?
129 positions (82.6% of IYW) are unique to IYW, led by NVDA, AAPL and MSFT. In the other direction, 104 positions (49.3% of VOX) are unique to VOX.