Underlying Asset Performance: CD91.XETRA's price mirrors the assets it tracks, primarily German government bonds. Bond yield changes directly impact its value.

Interest Rate Movements: Rising interest rates typically decrease bond prices, thus lowering CD91.XETRA's value. Conversely, falling rates can increase its price.

Inflation Expectations: Higher inflation erodes the real value of fixed-income assets, potentially leading to a decline in CD91.XETRA's price as investors demand higher yields.

Market Sentiment: Overall investor risk appetite and sentiment towards German government bonds can influence demand and, therefore, the ETF's price.

Supply and Demand: Basic economics apply; higher demand pushes the price up, while increased selling pressure can drive it down.

Tracking Error: Imperfect replication of the underlying bond index can cause price discrepancies between the ETF and its benchmark.

Fund Management Costs: Management fees and other expenses can indirectly affect the ETF's performance and, consequently, its price over time.

Geopolitical Events: Events impacting Germany's economy or the Eurozone could affect investor confidence and bond valuations.