Generated October 17, 2026.
Overview
SMH, SOXQ, and SOXX are all equity ETFs that track different semiconductor sector indexes composed of U.S.-listed chip companies. The three differ in their underlying index construction (MVIS vs. PHLX SOX vs. ICE), fee structure, asset base, and distribution yield. All three are passive index trackers with high market sensitivity—each carries a beta around 2.0–2.28—meaning they amplify broader market moves.
How they differ
SMH tracks the narrowest universe: the MVIS US Listed Semiconductor 25 Index, which focuses on 25 companies.
On costs, SOXQ has the lowest expense ratio at 0.19%, followed by SOXX at 0.33% and SMH at 0.35%—a gap of 0.16% percentage points between the highest and lowest. SMH is the largest by far, with $65.7B in assets, followed by SOXX at $39.3B and SOXQ at $2.80B. Beta ranges from SMH's 2.0 to SOXQ's 2.23, indicating SOXQ amplifies market swings slightly more aggressively.
SOXQ: Suits investors who prioritize lower fees—its 0.19% expense ratio undercuts SMH by 0.16% percentage points—and are comfortable with smaller AUM and a shorter inception date that began in 2021.
SOXX: Fits investors seeking a balance of broad semiconductor exposure, lower costs than SMH, and an established 25 years-year operating history; $39.3B in AUM offers meaningful scale without the largest fund's footprint.
Key risks to know
- Sector concentration: All three expose investors entirely to semiconductors, a cyclical industry dependent on capital spending and end-demand trends. Semiconductor stocks can experience steep drawdowns during downturns or inventory corrections.
- High beta amplification: With betas ranging from 2.0 to 2.23, these funds magnify broad equity market declines, meaning a 20% market drop could translate to a 40%+ loss in any of these ETFs.
- Index composition divergence: SMH's focus on 25 large-cap names concentrates risk differently from SOXQ and SOXX's broader baskets. Top holding overlap among the three is likely high, but actual weight differences may create meaningful performance gaps during sector rotations.
- Modest yield insufficient for capital erosion offset: Yields ranging from 0.20% to 0.38% fall well below long-term equity return expectations, so distributions do not offset NAV declines during downturns and provide minimal income cushion.
Bottom line
If you value the deepest liquidity and longest operating history, SMH stands out; if cost efficiency is the priority, SOXQ's 0.19% expense ratio offers savings over competitors. SOXX bridges the gap—lower fees than SMH, broader index exposure, and decades of track record at a mid-sized asset base. All three carry substantial downside amplification risk due to their high betas and will decline sharply in risk-off environments. 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.