This is a smart beta ETF that tracks the Dynamic Semiconductor Intellidex index. Through factor screening on price momentum, earnings growth, and capital allocation efficiency, it selects and holds 30 US semiconductor companies. Its structural hallmark is a quant-based stock evaluation process rather than simple index replication.

It suits investors who want concentrated exposure to the semiconductor sector but prefer factor screening over plain market-cap weighting.

Invesco launched the ETF in 2005, and it is passively managed (index-tracking).

Rather than a simple market-cap-weighted semiconductor index, it uses the Intellidex methodology, which evaluates multiple factors such as price momentum, earnings quality, and investment profitability to select 30 investment-worthy stocks. Factor scores are recalculated and the portfolio is reconstituted every quarter, so holding weights can shift more sharply than in comparable semiconductor ETFs.

• Stock selection based on factor screening: investment-worthiness criteria are evaluated instead of market-cap weighting
• Quarterly rebalancing reflects changes in momentum and earnings

Assets under management (AUM) stand at $2.4B, and the expense ratio is 0.55% per year.

The cost burden is somewhat higher than that of comparable semiconductor ETFs such as SOXX and SMH, and the concentrated 30-stock structure leads to relatively greater stock-specific risk.

The semiconductor sector has continued through a structural growth phase, backed by expanding investment in artificial intelligence infrastructure and rising data center demand. However, inventory adjustment cycles, geopolitical supply chain issues, and shifting interest rate conditions act as factors that raise short-term volatility, and given the nature of factor-based portfolios, performance tends to diverge during momentum phases.

When expectations for artificial intelligence chip demand come to the fore, inflows tend to concentrate across semiconductor ETFs in general. Because of its concentrated smart beta structure, PSI tends to react more sensitively to the performance of its top factor-scoring stocks than to sector-wide fund flows.

Factor-based stock selection is its point of differentiation, but a high expense ratio and the volatility of a concentrated portfolio are the main considerations.

The VFH, ONEQ, VIS, FV, and IYF shown in the table are ETFs from other sectors such as financials, technology, and industrials, so their strategies are hard to compare directly with PSI. Direct substitutes for PSI include SOXX (BlackRock iShares, Philadelphia Semiconductor Index) and SMH (VanEck), which track the same semiconductor sector at lower fees; the only difference lies in the factor selection approach, and sector exposure is similar. For a growth-themed approach with concentrated semiconductor weighting, FTXL (First Trust, AlphaDEX methodology) is also worth comparing. For leveraged exposure, SOXL (3x) is available, and for the opposite position, SOXS (3x inverse) also exists in the market.

These are the key points to confirm before investing in PSI. It is important to review in advance the structural characteristics of the factor-based strategy, the cost level, concentrated portfolio risk, and currency impact.

On top of the business cycle risk of the semiconductor sector itself, the nature of factor strategies means rebalancing losses can occur during sharp momentum reversals. A concentrated 30-stock portfolio is vulnerable to company-specific issues, and a high expense ratio cumulatively weighs on long-term returns.

If you prefer factor screening as a way to invest in a concentrated semiconductor allocation, PSI can be one option. If simple index replication and low costs are your priority, SOXX or SMH are the more common alternatives.