Generated September 5, 2026.
Overview
SOXQ and SOXX are both ETFs tracking the US semiconductor sector, but they follow different indexes and carry distinct structural profiles. The key difference: SOXX is the older, much larger fund with $40.8B in assets versus SOXQ's $2.97B, making SOXX the category heavyweight despite SOXQ's newer entry and lower fee structure.
How they differ
The first and most obvious split is index methodology. Both funds pay minimal distributions (0.33% and 0.22%, respectively), so yield is not a decision factor. SOXX carries $40.8B in AUM—roughly 14 times SOXQ's size—which translates to tighter bid-ask spreads and higher daily liquidity for large positions. Both exhibit high beta around 2.3, reflecting the sector's volatility relative to the broad market.
Who each is best for
- SOXQ: Fits investors seeking semiconductor exposure through a lower-cost vehicle and those comfortable with a shorter operating history relative to category peers.
- SOXX: Designed for investors who value deep liquidity, a 20+ year track record, and substantial AUM; also fits allocators for whom trading friction and bid-ask cost matter in execution.
Key risks to know
- Index divergence: The PHLX SOX and ICE Semiconductor indexes construct their components differently, meaning sector moves may not translate identically between these two funds; performance gaps during major semiconductor rallies or declines could exceed fee differences.
- Semiconductor concentration and cyclicality: Both funds concentrate in a cyclical industry highly sensitive to memory-chip demand, manufacturing capacity, and geopolitical supply-chain stress; downturns can be sharp and prolonged.
- High beta volatility: With beta around 2.3, both funds amplify market swings by more than two-to-one, making drawdown severity in bear markets a real consideration for risk-averse allocators.
- Expense ratio trade-off: SOXQ's lower fee advantage erodes if SOXX's superior liquidity results in tighter execution for frequent traders or if holdings-level overlap means performance divergence is immaterial relative to costs. The fee gap is meaningful over decades but small relative to sector-level volatility, and the index methodologies may produce returns that diverge in ways worth exploring before committing. Past performance does not predict future results.
AI-generated analysis for educational purposes only. Verify important details independently; past performance does not guarantee future results.