Market Interest Rates: Rising interest rates generally decrease bond prices, negatively impacting MZCIX, while falling rates boost them.

Credit Quality: Downgrades in the credit ratings of bonds held by MZCIX can lower its price, while upgrades can increase it.

Economic Conditions: Strong economic growth might lead to inflation fears and higher rates, negatively affecting bond prices in MZCIX.

Inflation Expectations: Higher inflation expectations usually push bond yields up and prices down, impacting MZCIX negatively.

Fund Management: The skill of the fund manager in selecting bonds and managing interest rate risk affects MZCIX's performance.

Supply and Demand: Higher demand for MZCIX units can push its price up, while increased selling pressure can lower it.

Liquidity: Reduced liquidity in the bond market can make it harder to sell bonds quickly, impacting MZCIX's net asset value.

Geopolitical Events: Global events and political instability can affect investor sentiment and bond market volatility, influencing MZCIX's price.