Underlying Index Performance: The ETF price closely tracks the performance of its underlying index. Any fluctuations in the index's constituents will directly impact the ETF's value.

Supply and Demand: Market forces play a crucial role. High demand relative to supply drives the price up, while increased selling pressure pushes it down.

Currency Exchange Rates: For ETFs holding international assets, currency fluctuations can significantly affect returns when converted back to the base currency.

Interest Rates: Changes in interest rates can influence investor sentiment and affect the attractiveness of ETFs relative to fixed-income investments.

Economic Conditions: Overall economic health, including factors like GDP growth, inflation, and unemployment, can affect investor confidence and influence ETF valuations.

Geopolitical Events: Major global events, such as political instability or trade wars, can create market uncertainty and impact ETF prices, especially those with international exposure.