Fund Performance: VVIQX's NAV is significantly impacted by the performance of the underlying assets, primarily stocks within the Russell 1000 Growth Index.

Market Conditions: Broad market trends, economic indicators (like interest rates, inflation), and investor sentiment directly influence the stock market, impacting VVIQX's holdings.

Expense Ratio: The fund's operating costs (expense ratio) reduce the returns to investors, affecting the overall price/NAV compared to other similar funds.

Fund Flows: Large inflows into or outflows from VVIQX can temporarily influence trading prices relative to its NAV due to market maker activity.

Management Strategy: Vanguard's management decisions regarding stock selection within the Russell 1000 Growth Index can impact performance relative to the benchmark.

Sector Performance: VVIQX's price is influenced by the performance of sectors heavily represented in the Russell 1000 Growth, such as technology and consumer discretionary.

Index Tracking: How closely VVIQX tracks the Russell 1000 Growth Index impacts its relative performance and price changes, as any tracking error will affect returns.