Market Interest Rates: Rising interest rates can decrease the value of bonds held by FFFJX.US, reducing its net asset value (NAV).

Credit Risk: Downgrades in the credit ratings of bonds within the fund's portfolio can lead to price declines.

Inflation Expectations: Higher inflation expectations generally lead to higher interest rates, negatively affecting bond prices.

Economic Growth: Strong economic growth can sometimes lead to rising interest rates, impacting bond values, while weaker growth may have the opposite effect.

Fund Management: The investment decisions made by the fund's managers influence its performance and thus its price.

Supply and Demand: Investor demand for FFFJX.US shares can affect its price, especially if there are significant inflows or outflows.

Bond Maturity: Funds holding longer-term bonds are generally more sensitive to interest rate changes than those with shorter-term holdings.

Government Policies: Government fiscal and monetary policies can have a significant impact on interest rates and bond yields.

Global Events: Major global events, like economic crises or political instability, can affect investor sentiment and bond markets.