Performance of Underlying Assets: The fund's price heavily depends on the performance of the assets it holds, typically stocks or bonds. Positive returns in these assets usually lead to a higher fund price.

Market Sentiment: Overall market sentiment significantly impacts fund prices. If investors are optimistic, demand for the fund may increase, driving up its price. Conversely, negative sentiment can lead to selling pressure and a price decrease.

Expense Ratio: The fund's expense ratio, which covers management and operational costs, indirectly affects its price. A higher expense ratio can detract from returns, potentially impacting demand and therefore the price.

Currency Fluctuations: For funds holding international assets, currency exchange rates play a role. Changes in the relative value of the currencies involved can impact the fund's price in Euros.

Interest Rates: Changes in interest rates can impact the value of bonds held within the fund, influencing the overall fund price. Rising rates often lead to lower bond values and vice versa.

Supply and Demand: Basic economic principles of supply and demand also apply. Increased investor demand for the fund, relative to the available supply of shares, tends to push the price upwards.