This is an equal-weighted semiconductor ETF that tracks the S&P Semiconductors Select Industry Index. Rather than weighting by market capitalization, it uses equal weighting to limit concentration in large semiconductor stocks and to hold mid- and small-cap semiconductor companies evenly.

It suits investors who want balanced exposure across the semiconductor industry without a tilt toward a handful of large semiconductor stocks.

State Street (SSGA) launched the ETF in 2006, and it is managed passively (index tracking).

The fund holds its constituents at equal weights rather than by market capitalization, which limits concentration in any single large stock. It selects components from the semiconductor segment within the broader S&P total market index and holds large-, mid-, and small-cap names evenly to maintain a diversified portfolio.

• Equal weighting avoids a tilt toward large semiconductor stocks and includes mid- and small-cap semiconductor companies
• The top 10 holdings account for roughly a quarter of the fund, which offers a strong diversification effect

Assets under management (AUM) stand at $2.6B, and the total expense ratio is 0.35% per year.

Unlike market-cap-weighted ETFs such as SOXX, where large stocks like NVDA carry heavy weights, XSD gives mid- and small-cap semiconductor stocks an equal weighting. As a result, its relative performance may lag when large caps rally, while it may hold a relative advantage when small and mid caps rebound.

The fund moves with the semiconductor sector cycle. It showed strength during periods of rising AI and data center demand, and it tends to become more volatile during inventory corrections or economic slowdown concerns. Because of its equal-weighted structure, it tends to perform better when the sector as a whole advances than when large caps lead the market.

Inflows continued across semiconductor ETFs amid the AI chip boom, and XSD drew attention from investors seeking to avoid large-cap concentration risk thanks to its equal weighting. However, its AUM is relatively small compared with large semiconductor ETFs.

Equal-weighted diversification is the core strength, while higher volatility in small and mid-cap semiconductors and liquidity are some of the drawbacks.

SOXX, shown in the table, is the leading competing ETF, holding the same semiconductor sector in a large-cap-focused, market-cap-weighted structure, while VGT and XLK track the broader technology sector, including semiconductors. Unlike XSD, these funds carry concentrated weights in top holdings such as NVDA and AVGO. Investors seeking leveraged exposure within the semiconductor sector may also compare SOXL, and those wanting an inverse bet may look at SOXS.

These are the key points to review before investing in XSD. Consider the diversification benefit of equal weighting, the industry risk of concentration in a single semiconductor sector, and costs and liquidity together.

Because of the concentration in the semiconductor industry and the larger weighting in small and mid-cap stocks, volatility can increase during sector corrections. Investors should also note that, owing to equal weighting, relative performance may trail market-cap-weighted ETFs when specific large stocks surge.

It is a useful choice for investors who want to diversify across the semiconductor sector at equal weights. Those who prefer concentration in large semiconductor stocks may consider SOXX, and those who want the broader technology sector may consider VGT or XLK as alternatives.