Market Sentiment: Overall investor confidence and risk appetite influence demand for small-cap, high-dividend yield ETFs like SDMAX.US.

Interest Rate Environment: Rising interest rates can make bond yields more attractive, potentially reducing demand for high-dividend stocks and SDMAX.US.

Small-Cap Stock Performance: The performance of the underlying small-cap stocks within the SDMAX.US portfolio directly impacts its net asset value (NAV) and share price.

Dividend Yields: Changes in the dividend yields of the constituent stocks affect SDMAX.US's overall dividend yield, influencing its attractiveness to income-seeking investors.

ETF Supply and Demand: The creation and redemption of SDMAX.US shares by authorized participants can affect its supply in the market, impacting its price relative to its NAV.

Economic Conditions: A strong economy generally supports small-cap stock performance, boosting SDMAX.US. Conversely, economic downturns can negatively impact it.

Sector Performance: The performance of specific sectors that are heavily represented in SDMAX.US will influence the ETF's overall performance and price.