Underlying Index Performance: The primary driver of WLDHC.PA's price is the performance of the underlying index it tracks. Positive index returns typically lead to ETF price increases, while negative returns cause price decreases.

Supply and Demand: Like all ETFs, WLDHC.PA's price is influenced by supply and demand dynamics in the market. Higher demand than supply generally pushes the price up, while greater supply than demand puts downward pressure on the price.

Currency Exchange Rates: As WLDHC.PA likely invests in international assets, currency fluctuations between the Euro (the ETF's trading currency) and the currencies of the underlying assets impact its price. A stronger Euro versus those currencies can lower the ETF's price.

Expense Ratio and Trading Costs: The ETF's expense ratio, representing the annual cost of managing the fund, and brokerage fees associated with buying and selling shares can affect its overall return and perceived value, influencing its price.

Market Sentiment and Investor Confidence: Broad market sentiment and overall investor confidence in the asset classes held by the underlying index play a significant role. Positive sentiment can drive increased investment in the ETF.