Underlying Index Performance: MODR.BE's price closely tracks its underlying index, the Solactive Sustainable Global Listed Infrastructure Index NTR. Thus, the performance of the companies within that index greatly influences the ETF's value. Supply and Demand: General supply and demand for MODR.BE shares on the Euronext Brussels exchange affects its market price. Higher demand generally leads to price increases, while increased selling pressure can lower prices. Investor Sentiment: Overall investor feelings towards sustainable infrastructure investments and broader market conditions impact MODR.BE. Positive sentiment can drive investment, while negative news can lead to selling. Currency Fluctuations: Since the underlying assets are global, currency exchange rates between the Euro and other currencies (like USD) can affect the ETF's Euro-denominated price. Management Fees and Expenses: The ETF's expense ratio, which covers operational costs, directly reduces the return and can impact its price over time. Interest Rates: Changes in interest rates can influence the attractiveness of infrastructure investments and impact investor decisions.