Underlying Index Performance: The primary driver is the performance of the MSCI World Quality Index, which LYQ6.XETRA aims to track. If the index rises, the ETF's price generally increases, and vice versa.

Supply and Demand: Market forces of supply and demand for the ETF itself influence its price. Higher demand typically leads to a price increase, while increased supply can cause a price decrease.

Currency Fluctuations: As the underlying assets of the MSCI World Quality Index are denominated in various currencies, fluctuations in the EUR/USD exchange rate can affect the ETF's EUR price.

Investor Sentiment: Overall investor confidence and risk appetite can impact the demand for equities, including those held within the ETF.

Expense Ratio and Tracking Error: The ETF's expense ratio and any deviation from the index's performance (tracking error) can slightly affect its total return and therefore its price over time.

Dividend Payments: Dividends paid by the companies within the index are usually reinvested into the ETF, which may lead to a very small price increase. The price may also drop slightly when it trades ex-dividend.