Underlying Asset Performance: WEMT2.PA tracks an index. The index's performance directly impacts the ETF's price. If the index rises, the ETF typically rises, and vice versa.

Supply and Demand: Market demand for WEMT2.PA versus the available supply influences its price. Higher demand can push the price up; increased supply can push it down.

Investor Sentiment: Overall market sentiment and investor confidence in the sectors or regions represented by the underlying index affect ETF prices. Positive sentiment can drive investment and increase prices.

Economic Conditions: Macroeconomic factors such as interest rates, inflation, and economic growth can influence the performance of the underlying assets and, consequently, the ETF's price.

Currency Fluctuations: Changes in the relative value of the Euro (since it's a PA stock) compared to the currencies of the assets held by the underlying index can impact the ETF's price, especially if the underlying assets are in a different currency.

Management Fees and Expenses: While not a direct day-to-day driver, higher management fees and operating expenses associated with the ETF can indirectly impact its price and overall return to investors over time.

Trading Volume and Liquidity: Higher trading volume and liquidity typically lead to tighter bid-ask spreads, making it easier to buy and sell shares at a fair price. Lower liquidity can increase price volatility.