Expense Ratio: Higher expense ratios mean more of the fund's returns are used to cover operational costs, reducing investor returns.

Net Asset Value (NAV): Changes in the underlying assets' values (stocks, bonds) held by the fund directly affect the fund's NAV and price.

Market Demand: Higher investor demand for ZVGNX.US can drive its price up, while lower demand can decrease it.

Interest Rates: Changes in prevailing interest rates can impact the value of the bonds held within the fund, especially if it invests in fixed-income securities.

Economic Conditions: Overall economic health (GDP growth, inflation, unemployment) can influence investment decisions and thus impact the price of the fund's holdings.

Fund Performance: Past performance, relative to its benchmark and peers, can affect investor perception and future investment decisions.

Management Strategy: Changes in the fund's investment strategy or management team can affect investor confidence and the fund's performance.

Global Events: Geopolitical events, economic crises, and policy changes can impact markets globally, influencing investor sentiment and fund values.

Inflation: Rising inflation may lead the Federal Reserve to raise interest rates.