Underlying Asset Performance: TNO.PA's price is largely driven by the performance of the companies within its underlying index. Positive or negative returns from these holdings directly impact the ETF's net asset value NAV. Supply and Demand: Market demand for TNO.PA shares affects its price. Higher demand can push the price above its NAV while increased selling pressure can cause it to trade below its NAV. Market Sentiment: Overall investor sentiment towards the sectors and geographies represented by TNO.PA influences its price. Broad market optimism or pessimism can lead to increased or decreased investment in the ETF. Index Changes: Modifications to the underlying index composition can impact TNO.PA's holdings and thus its price. Additions or deletions of companies can trigger rebalancing and affect investor perception. Currency Fluctuations: For international ETFs like TNO.PA currency exchange rates between the euro and the currencies of the underlying assets can influence the ETF's value. A stronger euro may reduce the ETF's value and vice versa. Expense Ratio and Management Fees: The annual fees charged to manage TNO.PA indirectly influence its price. Higher expenses can slightly reduce the overall return and thus affect investor appeal.