Investment Portfolio Performance: The performance of the underlying assets held within the EUFUND impacts its price. Strong performance increases value, weak performance decreases it.

Market Conditions: Broad market trends, economic indicators, and investor sentiment significantly influence the fund's price. Bull markets generally boost prices, while bear markets depress them.

Fund Management: The fund manager's investment decisions, including asset allocation and security selection, impact the fund's overall performance and price.

Expense Ratio: The fund's operating expenses, including management fees, directly affect returns and therefore the price. Higher expenses reduce returns.

Supply and Demand: Investor demand for the fund impacts its price. Increased demand tends to drive the price higher, while increased selling pressure can lower it.

Currency Fluctuations: Since it's an EU fund (assuming based on "EUFUND" and the LU ISIN), currency exchange rates between the fund's base currency and the investor's currency affect the perceived price.

Interest Rates: Changes in interest rates can impact the attractiveness of fixed-income securities held within the fund, indirectly affecting the overall fund price.