Bond Yields: Changes in prevailing interest rates and bond yields significantly affect TYHRX.US as it primarily invests in bonds. Higher yields typically cause bond prices, and therefore the fund's NAV, to fall, and vice versa.

Credit Risk: The creditworthiness of the bond issuers within TYHRX.US's portfolio impacts its price. Downgrades in credit ratings can lead to price declines.

Inflation Expectations: Rising inflation expectations can erode the real value of fixed-income investments, putting downward pressure on TYHRX.US's price.

Economic Growth: Strong economic growth can lead to expectations of higher interest rates, which can negatively affect bond prices and TYHRX.US's NAV.

Fund Flows: Significant inflows or outflows from TYHRX.US can impact its price due to the fund manager's need to buy or sell securities to accommodate these changes.

Market Sentiment: Overall investor risk appetite and sentiment can influence demand for bonds, thus impacting TYHRX.US's price.