US Market Performance: IHVV.AU tracks the S&P 500, so US market trends greatly influence its price.

Currency Fluctuations: AUD/USD exchange rate changes impact returns as the ETF is priced in Australian dollars but holds US assets.

Investor Sentiment: Overall market optimism or pessimism towards US equities affects demand and therefore IHVV.AU's price.

Management Fees: The ETF's expense ratio slightly reduces returns relative to the underlying index.

Supply and Demand: Buying and selling pressure for IHVV.AU units on the ASX affects its market price.

Dividend Reinvestments: Dividends from underlying US companies, when reinvested, contribute to the ETF's overall value.

Economic Data: Major US economic releases (e.g., GDP, inflation) can significantly move the S&P 500 and, by extension, IHVV.AU.

Interest Rate Changes: US Federal Reserve policy decisions regarding interest rates influence stock valuations and IHVV.AU's price.

Political Events: US political developments and policy changes can create uncertainty and affect market sentiment, impacting the ETF.

Geopolitical Risks: Global events and tensions can impact investor confidence and drive volatility in US markets and IHVV.AU.