**Market Interest Rates:** Rising interest rates can decrease bond prices, affecting FTMBAX's net asset value.

**Credit Risk:** Changes in the creditworthiness of bond issuers within the fund's portfolio can impact its value. Downgrades lower prices.

**Inflation Expectations:** Higher inflation expectations can lead to lower bond prices and impact FTMBAX's performance negatively.

**Economic Growth:** Stronger economic growth might reduce demand for bonds, potentially lowering FTMBAX's value due to shifting investor preferences.

**Fund Management Expertise:** Skillful portfolio management can positively influence FTMBAX's performance through strategic security selection and trading.

**Fund Flows:** Significant inflows or outflows from the fund can affect the manager's ability to effectively deploy capital or meet redemptions.

**Liquidity:** The liquidity of underlying bond holdings impacts the fund's ability to meet redemption requests and manage portfolio adjustments.