Component Stock Prices: IQQW tracks a specific index, so changes in the prices of the underlying stocks within that index directly impact the ETF's price.

Supply and Demand: Like any traded asset, higher demand for IQQW pushes its price up, while increased selling pressure lowers it.

Index Rebalancing: When the underlying index is rebalanced, IQQW's managers must buy or sell stocks to match the new weights, influencing prices.

Currency Fluctuations: As IQQW likely holds international stocks, currency exchange rates between the euro and those currencies affect its euro-denominated price.

Investor Sentiment: Broad market optimism or pessimism towards the sectors or regions represented in IQQW influences buying and selling decisions.

Expense Ratio: While not directly impacting daily price swings, IQQW's expense ratio gradually lowers returns over time, affecting its long-term value.

Tracking Error: Deviations between IQQW's performance and the performance of its benchmark index can create slight price discrepancies.