Fund Performance: Invesco FTSE RAFI US 1000 ETF's investment decisions and its ability to track the FTSE RAFI US 1000 Index affect investor confidence.

Market Sentiment: Overall investor mood, particularly towards ETFs focused on US equities, influences demand and trading volume.

Economic Conditions: Broad economic indicators like GDP growth, inflation, and interest rates impact the valuations of the underlying companies held in the ETF.

Index Performance: The performance of the FTSE RAFI US 1000 Index, which the ETF aims to replicate, directly drives its price.

Fund Flows: Significant inflows or outflows of capital into or out of the ETF can impact its share price due to supply and demand dynamics.

Expense Ratio: The ETF's expense ratio, representing annual operating costs, affects its attractiveness relative to similar ETFs.

Geopolitical Events: Global events and political instability can introduce volatility into financial markets, influencing investor behavior towards ETFs.

Regulatory Changes: Changes in regulations regarding ETFs or the underlying securities held by the ETF may impact its value.

Currency Fluctuations: As IFLXF.US trades in USD, currency fluctuations may indirectly affect its price for international investors.