Underlying Index Performance: CD9.PA's price is primarily driven by the performance of its underlying index, the MSCI World Information Technology Index. Gains or losses in the index directly influence the ETF's net asset value (NAV).

Supply and Demand: Market forces of supply and demand affect CD9.PA's price. High demand can push the price above the NAV, while increased selling pressure may cause it to trade below its NAV.

Currency Fluctuations: CD9.PA is EUR denominated but tracks global tech stocks. Exchange rate movements between the EUR and other currencies (especially USD) can impact returns.

Expense Ratio: The ETF's expense ratio, which covers management and operational costs, can slightly impact its overall return and therefore price.

Market Sentiment: General investor sentiment toward technology stocks influences CD9.PA's price. Positive outlooks can boost demand, while negative sentiment can trigger sell-offs.

Interest Rates: Interest rate changes can indirectly affect CD9.PA. Higher rates might lead investors to favor bonds, potentially reducing demand for tech stocks and ETFs.