Underlying Asset Performance: The value of the securities held by the ETF directly impacts its price. If the underlying assets increase in value, so should the ETF's price.

Supply and Demand: Market forces influence ETF price. High demand can drive the price up, while increased selling pressure pushes it down.

Index Tracking Accuracy: How closely the ETF mirrors its benchmark index affects its price. Deviations from the index's performance can create price discrepancies.

Expense Ratio: The ETF's management fees impact its overall return. Higher fees can slightly reduce the ETF's relative performance and thus its price.

Market Sentiment: Overall investor mood and confidence in the market and specific sectors can affect ETF prices.

Currency Fluctuations: For ETFs holding international assets, exchange rate changes between currencies can impact the ETF's price in the local currency.

Trading Volume and Liquidity: Higher trading volume usually results in tighter bid-ask spreads, leading to fairer prices. Low liquidity can cause price volatility.