Underlying Index Performance: S5SD.F tracks the Solactive Sustainable Development Goals Index, so its price closely mirrors that index's movements.

Supply and Demand: ETF prices fluctuate based on investor buying and selling activity. High demand drives prices up, while increased selling pressure causes prices to fall.

Component Stock Prices: The index comprises shares of companies meeting specific sustainability criteria. Individual stock price changes within the index impact the overall ETF value.

Currency Exchange Rates: As S5SD.F may hold international stocks, currency fluctuations between the Euro (assuming it's Euro-denominated) and the underlying assets' currencies can influence the ETF's price.

Market Sentiment: General investor optimism or pessimism regarding sustainable investments and global markets can affect ETF demand and pricing.

Expense Ratio: The ETF's expense ratio, while not directly impacting daily price swings, reduces overall returns and effectively influences the price over time compared to the underlying index.

Tracking Error: Deviations between the ETF's performance and the index it tracks can result in price differences. This error can arise from fund management strategies or operational costs.