Sector Concentration Risk: As an exchange-traded fund focused solely on the materials sector, XLB is vulnerable to downturns or underperformance within this specific industry, leading to less diversification than a broad market fund.

Commodity Price Volatility Risk: The performance of companies within the materials sector is highly dependent on the fluctuating prices of raw materials and commodities, such as metals, chemicals, and building products, which can be unpredictable.

Economic Sensitivity Risk: The materials sector is highly cyclical and its performance is closely tied to overall economic growth, industrial production, and construction activity, making it susceptible to economic slowdowns or recessions.