Underlying Asset Performance: The ETF's price closely tracks the performance of the underlying assets it holds. For example, if UINE.XETRA tracks an index, the ETF's price will fluctuate based on the movements in that index.

Supply and Demand: Like any security, the ETF's price is affected by supply and demand. Higher demand will increase the price, while increased supply will decrease it.

Net Asset Value (NAV): The NAV is the total value of the ETF's assets minus its liabilities, divided by the number of outstanding shares. The market price generally stays close to the NAV.

Trading Volume and Liquidity: Higher trading volume and liquidity generally lead to a tighter bid-ask spread, making it easier to buy and sell the ETF at a fair price.

Market Sentiment: General market sentiment, whether bullish or bearish, can impact the demand and thus the price of the ETF, especially during periods of uncertainty.

Expense Ratio and Tracking Error: The expense ratio, and how well it tracks the underlying asset.