Index Performance: SPU.F tracks the S&P 500; therefore, its price closely mirrors the index's movements. A rising S&P 500 typically leads to a higher SPU.F price, and vice-versa.

Market Sentiment: Overall investor confidence or pessimism significantly impacts demand for SPU.F. Positive economic news often fuels buying pressure, while negative news can trigger sell-offs.

Interest Rates: Changes in interest rates, particularly those set by the Federal Reserve, can influence investment flows. Higher rates may make bonds more attractive, potentially reducing demand for equities like SPU.F.

Economic Data: Key economic indicators, such as GDP growth, inflation rates, and unemployment figures, affect investor expectations and can drive SPU.F's price up or down.

Currency Fluctuations: As an ETF traded in a specific currency, changes in currency exchange rates, particularly relative to the assets it holds, can impact its price, although this effect is generally less pronounced for ETFs tracking broad domestic indices.

Supply and Demand: The basic principle of supply and demand applies. Higher demand for SPU.F shares will generally push the price up, while increased selling pressure can lower it.