Company Performance: The underlying companies' profitability, revenue growth, and overall financial health directly impact the ETF's value. Strong performance typically increases the ETF price.

Market Sentiment: General investor optimism or pessimism towards small-cap stocks can drive demand for the ETF, influencing its price. A positive outlook often leads to higher prices.

Economic Conditions: Macroeconomic factors like interest rates, inflation, and GDP growth can affect small-cap businesses and, consequently, the ETF's value. Strong economic growth is usually beneficial.

Sector Trends: Specific sectors within the small-cap space may experience booms or busts. Positive sector trends benefit companies in those sectors, raising the ETF's value.

Index Tracking: The ETF's price should closely mirror the index it tracks. Deviations can occur, but arbitrage usually corrects this. The index performance directly influences the ETF.

Supply and Demand: Basic supply and demand principles apply. High demand relative to supply increases the price, and vice versa. Trading volume reflects investor interest.

Fund Flows: Significant inflows or outflows from the ETF can affect its price, particularly if the fund manager needs to buy or sell underlying assets quickly. Large inflows tend to increase the price.

Management Fees: While not directly impacting the daily price, high management fees can erode returns over time, potentially making the ETF less attractive to investors compared to cheaper alternatives. This can influence long term demand.