Federal Reserve (Fed) Actions: Interest rate changes by the Fed can heavily influence bond yields, affecting the net asset value (NAV) of bond funds like FHRWZX.US.

Economic Data: Key indicators such as inflation, GDP growth, and employment figures impact investor sentiment and expectations regarding interest rate movements and economic stability.

Credit Spreads: Widening credit spreads indicate increased perceived risk in the bond market, which can decrease bond prices and fund NAV. Conversely, narrowing spreads boost bond prices.

Market Sentiment: General investor confidence or fear can trigger buying or selling pressure on bond funds irrespective of underlying fundamentals.

Geopolitical Events: Global events, political instability, or policy changes can create uncertainty and affect investor risk appetite, driving shifts in bond fund prices.

Fund Flows: Significant inflows or outflows into/from FHRWZX.US can impact its NAV due to supply and demand dynamics.

Fund Holdings: The specific bonds held by the fund, their credit ratings, and maturity dates directly impact the fund's overall performance and sensitivity to market changes.

Inflation Expectations: Rising inflation erodes the real value of fixed-income investments, potentially pushing bond yields higher and bond prices lower.

Currency Fluctuations: For funds holding international bonds, changes in currency exchange rates can affect the fund's returns when measured in USD.