Underlying Asset Performance: The fund's NAV reflects the performance of the assets it holds, primarily bonds. Rising bond prices increase NAV, while falling prices decrease it.

Interest Rate Changes: Bond prices are inversely related to interest rates. Rising interest rates typically cause bond prices and the fund's NAV to fall.

Credit Risk: Changes in the creditworthiness of bond issuers within the fund impact bond prices and, consequently, the fund's NAV. Downgrades decrease value.

Inflation Expectations: Rising inflation expectations often lead to higher interest rates and lower bond prices, negatively impacting the fund's NAV.

Economic Growth: Economic growth can influence interest rates and credit risk, both of which affect bond prices and the fund's NAV.

Fund Management Strategy: The fund manager's decisions regarding asset allocation, duration, and credit risk influence the fund's performance and NAV.

Market Sentiment: Investor sentiment towards fixed income investments can affect demand for the fund, influencing its market price relative to NAV.

Supply and Demand: The balance between buying and selling pressure for the fund's shares can influence its market price. High demand raises price.

Expense Ratio: The fund's expense ratio reduces returns and indirectly affects the fund's NAV over time. Higher fees diminish potential gains.

Currency Fluctuations: If the fund holds bonds denominated in currencies other than the fund's base currency, exchange rate movements can affect its NAV.