Fund Performance: The fund's past performance, relative to its benchmark and peers, influences investor demand and therefore its price.

Market Conditions: Overall market trends, economic indicators (like interest rates and inflation), and investor sentiment significantly impact fund prices.

Asset Allocation: The specific assets held by the fund (e.g., stocks, bonds, real estate) and their performance drive the fund's net asset value (NAV).

Expense Ratio: The fund's expense ratio (management fees, operating costs) reduces returns and affects its attractiveness to investors.

Fund Size: A very large or small fund size can impact liquidity and efficiency of trading the underlying assets, influencing price.

Redemption Pressure: Large outflows from the fund can force it to sell assets, potentially impacting NAV and the fund's market price.

Regulatory Changes: Changes in regulations or tax laws can affect the fund's operations and investor appetite, impacting its price.

Currency Fluctuations: For funds investing in international assets, currency exchange rates influence the value of the holdings when converted back to EUR.