**Market Interest Rates**: Rising interest rates typically decrease FIGDX.US bond prices as newly issued bonds become more attractive.

**Economic Growth**: Strong economic growth can lead to higher inflation expectations, potentially lowering FIGDX.US bond values.

**Inflation**: Higher inflation erodes the real value of fixed-income investments, decreasing bond prices.

**Credit Risk**: Changes in the perceived creditworthiness of the bond issuers can impact prices; increased risk lowers prices.

**Liquidity**: Lower liquidity makes bonds harder to sell quickly, potentially reducing their market price.

**Supply and Demand**: An increase in the supply of similar bonds or a decrease in demand can negatively impact FIGDX.US pricing.

**Global Events**: Unexpected global events can create market uncertainty and affect bond yields and prices.

**Federal Reserve Policy**: Actions by the Federal Reserve, such as quantitative easing or tightening, impact bond markets.