Generated September 19, 2026.
Overview
SMHX and SOXX are both ETFs tracking semiconductor industry indexes, but they focus on different segments. SMHX targets fabless semiconductor companies—firms that design chips but outsource fabrication to manufacturers—using the MarketVector US Listed Fabless Semiconductor Index. SOXX tracks the entire semiconductor ecosystem, including fabless designers, integrated device manufacturers (IDMs), and memory producers, via the ICE Semiconductor Index. The key distinction is SMHX's narrower, design-focused strategy versus SOXX's broader exposure to the full semiconductor supply chain.
How they differ
SMHX's fabless-only mandate captures pure chip designers without manufacturing assets or capital intensity, while SOXX includes capital-heavy foundries and memory companies, creating materially different risk and return profiles. SOXX is an established fund launched in 07/10/2001 with $42.3B in assets; SMHX is brand-new, launched 08/27/2024, with $272M in AUM, reflecting its very recent inception. Both carry low expense ratios (0.35% and 0.33%, respectively), though SOXX's lower cost reflects its larger scale. Beta figures are nearly identical at 2.2504 (SMHX) and 2.33 (SOXX), indicating comparable volatility relative to the broad market.
Who each is best for
SMHX: Fits investors seeking concentrated exposure to the fabless design segment—firms like Nvidia, AMD, and Broadcom—and comfortable accepting the concentration risk and higher volatility of a narrower industry subsegment.
Key risks to know
- Fabless concentration (SMHX): A portfolio limited to design-stage companies excludes the diversification that integrated manufacturers and memory producers provide; weakness in chip design demand or concentration among a few mega-cap design firms can amplify losses relative to the broader semiconductor sector.
- Cyclicality and capex exposure (SOXX): The inclusion of capital-intensive foundries and memory manufacturers exposes SOXX to semiconductor industry cycles and capex volatility; downturns in chip demand can pressure profitability and distribution sustainability more sharply than in design-only portfolios.
- Newness and liquidity (SMHX): At 2 years, SMHX has minimal operational history and trading volume; limited price discovery and potential for wide bid-ask spreads increase execution risk for larger positions.
- Earnings and guidance sensitivity: Both funds are highly sensitive to semiconductor company earnings reports and forward guidance; revisions to AI demand expectations or supply-chain concerns can trigger sharp price swings.
Bottom line
SMHX offers pure-play exposure to the highest-margin segment of semiconductors (chip design) with narrow concentration risk; SOXX provides broad semiconductor exposure with two decades of track record, larger liquidity, and higher yield. The choice hinges on whether you want design-only concentration or full-chain diversification, and on your confidence in the semiconductor cycle outlook.
AI-generated analysis for educational purposes only. Verify important details independently; past performance does not guarantee future results.