IYW vs SOXX: Holdings Overlap
IYWiShares U.S. Technology ETF
iShares · 139 holdings · $25.2B · as of 2026-04-30
iShares · 30 holdings · $47.6B · as of 2026-03-31
Holdings snapshots are 30 days apart (IYW: 2026-04-30, SOXX: 2026-03-31). 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 SOXX?
iShares U.S. Technology ETF (IYW, by iShares) holds 139 positions; iShares Semiconductor ETF (SOXX, by iShares) holds 30. They have 20 holdings in common, and by portfolio weight the two funds are 33.1% identical. In practical terms the pair is moderately overlapping; they share a meaningful core, but each fund adds distinct exposure.
- Overlap by Weight
- 33.1%Sum of the smaller weight of each shared holding
- Shared Holdings
- 20IYW holds 139 · SOXX holds 30
- Weight in Shared Holdings
- IYW 41%·SOXX 83%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
119 of 139 positions (58.9% of the fund) are not held by SOXX. Showing the top 30 by weight.
Only in SOXX
10 of 30 positions (16.9% of the fund) are not held by IYW.
Sector Breakdown
| Sector | IYW | SOXX |
|---|---|---|
| Information Technology | 80.4% | 98.6% |
| Communication Services | 17.9% | 0.0% |
| Industrials | 1.0% | 0.0% |
| Consumer Discretionary | 0.4% | 0.0% |
| Financials | 0.1% | 0.0% |
| Other Sectors | 0.0% | 0.0% |
| Unclassified | 0.0% | 1.2% |
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. “Unclassified” is weight we could not classify (0% of IYW, 1% of SOXX).
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% |
| SOXX | -1.5% | +80.6% | +126.6% | +47.5% | +29.5% | +32.9% | 0.27% |
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 SOXX →
Shared Holdings(20)
The top 10 shared positions account for 88% of the overlap, led by NVDA, AVGO and AMD.
 NVDANVIDIA Corp. COM | 16.23% | 8.40% | 8.40% |
|---|---|---|---|
 AVGOBroadcom Inc COM | 3.78% | 8.27% | 3.78% |
 AMDAdvanced Micro Devices Inc. COM | 3.50% | 6.47% | 3.50% |
 MUMicron Technology Inc. COM | 2.98% | 6.99% | 2.98% |
 INTCIntel Corporation COM | 2.56% | 4.13% | 2.56% |
 LRCXLam Research Corporation COM NEW | 1.98% | 3.90% | 1.98% |
 AMATApplied Materials Inc. COM | 1.92% | 5.84% | 1.92% |
 TXNTexas Instruments Inc. COM | 1.57% | 3.91% | 1.57% |
 KLACKLA Corp. COM NEW | 1.41% | 4.12% | 1.41% |
 ADIAnalog Devices Inc. COM | 1.21% | 3.82% | 1.21% |
 QCOMQUALCOMM Inc. COM | 1.18% | 3.86% | 1.18% |
 MRVLMarvell Technology Inc COM | 0.86% | 5.17% | 0.86% |
 MPWRMonolithic Power Systems Inc. COM | 0.46% | 4.08% | 0.46% |
 TERTeradyne Inc. COM | 0.33% | 3.95% | 0.33% |
 MCHPMicrochip Technology Incorporated COM | 0.30% | 3.02% | 0.30% |
 ONON Semiconductor Corp. COM | 0.25% | 2.14% | 0.25% |
 ALABAstera Labs Inc COM | 0.15% | 1.31% | 0.15% |
 ENTGEntegris Inc COM | 0.13% | 1.56% | 0.13% |
 MTSIMACOM Technology Solutions Holdings Inc. COM | 0.11% | 1.31% | 0.11% |
 SWKSSkyworks Solutions, Inc. COM | 0.06% | 0.71% | 0.06% |
Frequently Asked Questions
How much do IYW and SOXX overlap?
IYW and SOXX overlap by 33.1% of portfolio weight. They share 20 holdings (IYW holds 139 positions and SOXX holds 30), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IYW and SOXX?
The two portfolios are 33.1% 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 IYW and SOXX?
The largest positions held by both funds are NVDA, AVGO, AMD, MU and INTC. Together the top 10 shared positions account for 88% of the total overlap.
What does IYW own that SOXX doesn't?
119 positions (58.9% of IYW) are unique to IYW, led by AAPL, GOOGL and GOOG. In the other direction, 10 positions (16.9% of SOXX) are unique to SOXX.