Underlying Index Performance: PDJE.PA's price closely tracks the Solactive Eurozone Economic Development Select 50 EUR Index. Upward or downward movements in the index directly impact the ETF's value. Supply and Demand: High demand for PDJE.PA generally increases its price, while increased selling pressure leads to price declines. Market sentiment plays a significant role in investor interest. Currency Fluctuations: As PDJE.PA is EUR denominated, fluctuations in the EUR's exchange rate against other currencies, such as the USD or GBP, can influence its attractiveness to international investors, affecting its price. Expense Ratio and Trading Costs: PDJE.PA's expense ratio reduces the return an investor receives. Higher trading costs associated with buying and selling the ETF also detract from potential profits. Dividend Payments: Dividend yields of the underlying stocks and the ETF's distribution policy may attract or deter investors, subtly impacting its price. Changes in dividend expectations can influence value.