Generated June 2026 from current fund data.
Overview
SOXX and XLK are both technology-focused equity ETFs, but they carve out distinctly different slices of the sector. SOXX tracks the ICE Semiconductor Index and holds only semiconductor companies—a concentrated, cyclical play on chip design and manufacturing. XLK, meanwhile, holds the S&P 500's entire technology sector, which includes semiconductors, software, cloud services, and hardware vendors. The difference is breadth: SOXX bets on semiconductors alone; XLK bets on tech at large.
How they differ
The biggest difference is scope. SOXX owns only semiconductor firms, while XLK holds the full tech sector—software giants like Microsoft and Apple, cloud providers, IT services firms, and semiconductor makers all mixed together. That makes SOXX roughly 2.6 times more volatile than the broad market (beta of 2.26) versus XLK's 1.42, reflecting semiconductor cyclicality and capital intensity.
Second, SOXX costs more to own. Its 0.35% expense ratio is nearly four times XLK's 0.09%, and SOXX is also the much smaller fund at $36.9 billion in AUM versus XLK's $118 billion. That size gap affects trading tightness and fund stability.
Third, yield is minimal for both—SOXX at 0.18% and XLK at 0.49%—but XLK edges ahead. Neither fund is a dividend vehicle; both are pure growth plays with distributions reflective of the tech sector's historically low payout culture.
Who each is best for
SOXX: Fits investors who want concentrated exposure to semiconductor fundamentals—chip demand, fab utilization, industry cycles—and can tolerate swings that amplify broad market moves. Appeals to those building a deliberate, multi-sector portfolio who need a dedicated semiconductors tilt rather than relying on XLK's blended tech weight.
XLK: Designed for investors seeking broad-based tech sector exposure without semiconductor concentration risk. Suits buy-and-hold allocators who want lower fees, larger fund size, and diversification across software, cloud, hardware, and chip makers together.
Key risks to know
- Semiconductor cycle risk (SOXX): Chip demand is tied to capital spending cycles in PCs, data centers, and consumer electronics. Downturns can be sharp and extended, amplifying SOXX's already-high beta and drawdowns.
- Valuation sensitivity: Both funds hold companies trading at elevated multiples relative to earnings, with most gains priced on future growth. Interest rate increases and profit-margin compression can pressure both meaningfully.
- Concentration in mega-cap tech (XLK): While broader than SOXX, XLK's largest holdings—Apple, Microsoft, Nvidia, Broadcom—represent a significant portion of the fund. A pullback in mega-cap valuations affects both funds, but XLK's diversification provides some cushion SOXX lacks.
- SOXX liquidity and fund flows: At $36.9 billion AUM, SOXX is substantially smaller than XLK, making it more vulnerable to outflows during sector downturns and potentially wider bid-ask spreads.
Bottom line
If you want semiconductor-specific leverage and can tolerate higher volatility, SOXX offers concentrated exposure at the cost of fees and concentration risk. If you prefer broader tech diversification with lower fees and a $118 billion fund behind you, XLK provides simpler S&P tech-sector tracking. Past performance doesn't predict future results; neither fund offers meaningful income, and both will swing with the sector's growth cycles.
AI-generated analysis for educational purposes only. Verify important details independently; past performance does not guarantee future results.