XLK vs SOXX: Holdings Overlap
XLKState Street® Technology Select Sector SPDR® ETF
State Street (SPDR) · 73 holdings · $122.8B · as of 2026-08-06
iShares · 30 holdings · $47.6B · as of 2026-03-31
Holdings snapshots are 128 days apart (XLK: 2026-08-06, 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 XLK and SOXX?
State Street® Technology Select Sector SPDR® ETF (XLK, by State Street (SPDR)) holds 73 positions; iShares Semiconductor ETF (SOXX, by iShares) holds 30. They have 18 holdings in common, and by portfolio weight the two funds are 38.7% identical. In practical terms the pair is moderately overlapping; they share a meaningful core, but each fund adds distinct exposure.
- Overlap by Weight
- 38.7%Sum of the smaller weight of each shared holding
- Shared Holdings
- 18XLK holds 73 · SOXX holds 30
- Weight in Shared Holdings
- XLK 45%·SOXX 82%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 XLK
55 of 73 positions (55.3% of the fund) are not held by SOXX. Showing the top 30 by weight.
Only in SOXX
12 of 30 positions (17.4% of the fund) are not held by XLK.
Sector Breakdown
| Sector | XLK | SOXX |
|---|---|---|
| Information Technology | 99.9% | 98.6% |
| 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 XLK, 1% of SOXX).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| XLK | +4.9% | +30.9% | +43.5% | +30.7% | +20.3% | +24.4% | 0.42% |
| 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 XLK vs SOXX →
Shared Holdings(18)
The top 10 shared positions account for 89% of the overlap, led by NVDA, AVGO and AMD.
 NVDANVIDIA Corp. COM | 14.35% | 8.40% | 8.40% |
|---|---|---|---|
 AVGOBroadcom Inc COM | 5.39% | 8.27% | 5.39% |
 AMDAdvanced Micro Devices Inc. COM | 4.11% | 6.47% | 4.11% |
 MUMicron Technology Inc. COM | 3.70% | 6.99% | 3.70% |
 INTCIntel Corporation COM | 3.11% | 4.13% | 3.11% |
 AMATApplied Materials Inc. COM | 2.77% | 5.84% | 2.77% |
 LRCXLam Research Corporation COM NEW | 2.53% | 3.90% | 2.53% |
 TXNTexas Instruments Inc. COM | 1.67% | 3.91% | 1.67% |
 KLACKLA Corp. COM NEW | 1.67% | 4.12% | 1.67% |
 MRVLMarvell Technology Inc COM | 1.22% | 5.17% | 1.22% |
 ADIAnalog Devices Inc. COM | 1.22% | 3.82% | 1.22% |
 QCOMQUALCOMM Inc. COM | 1.12% | 3.86% | 1.12% |
 MPWRMonolithic Power Systems Inc. COM | 0.44% | 4.08% | 0.44% |
 TERTeradyne Inc. COM | 0.40% | 3.95% | 0.40% |
 NXPINXP Semiconductors NV EUR0.20 | 0.39% | 3.70% | 0.39% |
 MCHPMicrochip Technology Incorporated COM | 0.27% | 3.02% | 0.27% |
 ONON Semiconductor Corp. COM | 0.20% | 2.14% | 0.20% |
 SWKSSkyworks Solutions, Inc. COM | 0.07% | 0.71% | 0.07% |
Frequently Asked Questions
How much do XLK and SOXX overlap?
XLK and SOXX overlap by 38.7% of portfolio weight. They share 18 holdings (XLK holds 73 positions and SOXX holds 30), based on each fund's latest SEC-reported holdings.
Is it redundant to own both XLK and SOXX?
The two portfolios are 38.7% 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 XLK and SOXX?
The largest positions held by both funds are NVDA, AVGO, AMD, MU and INTC. Together the top 10 shared positions account for 89% of the total overlap.
What does XLK own that SOXX doesn't?
55 positions (55.3% of XLK) are unique to XLK, led by AAPL, MSFT and CSCO. In the other direction, 12 positions (17.4% of SOXX) are unique to SOXX.