Underlying Asset Performance: CG1.PA's price is primarily driven by the performance of the companies within its underlying index, typically the MSCI World Information Technology Index. Positive performance from these companies leads to a higher ETF price.

Supply and Demand: Market forces play a crucial role. High demand for CG1.PA, exceeding supply, pushes the price upwards. Conversely, increased selling pressure can lower the price.

Investor Sentiment: Overall market optimism or pessimism regarding the technology sector significantly influences investor interest and thus, demand for tech ETFs like CG1.PA.

Currency Exchange Rates: As CG1.PA invests in international companies, fluctuations in exchange rates (particularly EUR vs. USD) can impact the ETF's price when translated back into Euros.

Expense Ratio and Tracking Error: While not directly impacting price movements, a higher expense ratio or significant tracking error (deviation from the underlying index's performance) can indirectly affect investor demand and long-term returns.