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

Supply and Demand: Market forces of supply and demand influence the ETF's price. Higher demand pushes the price up, while increased supply can lower it.

Trading Volume: Higher trading volumes usually result in tighter bid-ask spreads, which can make trading the ETF more efficient and potentially affect its price.

Expense Ratio: The ETF's expense ratio, the annual cost of managing the fund, is deducted from the fund's assets, indirectly impacting returns and the ETF's price.

Market Sentiment: Overall market sentiment, whether bullish or bearish, can influence investor behavior and impact the demand for and price of the ETF.

Currency Fluctuations: For ETFs holding international assets, currency fluctuations between the local currency and the base currency of the ETF can affect its price.

Interest Rates: Changes in interest rates can affect bond yields and equity valuations, indirectly influencing the price of the ETF, especially if it holds bonds or dividend-paying stocks.