Market Sentiment: Overall investor confidence and risk appetite significantly impact fund prices. Positive sentiment drives demand, increasing prices, while negative sentiment leads to sell-offs and price decreases.

Fund Performance: The fund's historical and current investment returns influence its attractiveness to investors. Strong performance attracts new investment, raising the price.

Underlying Assets: The value of the securities held within the fund directly affects its net asset value (NAV) and thus its price. Market fluctuations in these assets cause corresponding price changes.

Interest Rates: Changes in interest rates can influence bond yields and equity valuations, impacting the fund's NAV. Higher interest rates may lead to lower bond prices.

Economic Conditions: Macroeconomic factors such as GDP growth, inflation, and unemployment can impact company earnings and market sentiment, affecting the fund's investments and price.

Fund Flows: Inflows of new capital into the fund increase demand and can push the price higher, while outflows reduce demand and can lower the price.

Fund Management: The skill and expertise of the fund manager in selecting investments and managing risk play a vital role in the fund's performance and price.

Expenses and Fees: The fund's expense ratio, including management fees and operating costs, can affect its overall returns and relative attractiveness to investors, influencing the price.

Currency Fluctuations: For funds investing in international assets, currency exchange rates can impact returns. A stronger pound relative to other currencies may lower returns.

Supply and Demand: The basic economic principle of supply and demand affects fund prices. High demand relative to available units pushes prices up, while low demand leads to price decreases.