US Market Interest Rates: Higher interest rates generally decrease bond prices, while lower rates increase bond prices. FZMRTX's price will be influenced by the prevailing interest rate environment.

Economic Growth: Strong economic growth can lead to inflation, which can push interest rates higher and negatively impact bond prices. Conversely, slower growth can lead to lower rates and higher bond prices.

Inflation Expectations: Rising inflation expectations typically result in higher interest rates, reducing the value of bonds, including those held by FZMRTX. Lower inflation expectations have the opposite effect.

Credit Risk: The creditworthiness of the issuers of the bonds held by FZMRTX impacts the fund's price. Downgrades or concerns about issuers' ability to repay debts can negatively affect the fund's value.

Fund Management: The skill and strategy of the fund manager in selecting and managing bond holdings can influence FZMRTX's performance relative to its benchmark and peers.

Supply and Demand: General investor sentiment towards bond funds and the specific demand for FZMRTX shares can influence its price. Higher demand can drive the price up, and increased selling pressure can push it down.