Interest Rates: Changes in benchmark interest rates set by the Federal Reserve directly impact money market fund yields, influencing FUZXX.US's price.

Credit Quality: The creditworthiness of securities held by FUZXX.US, such as government or corporate bonds, affects investor confidence and fund valuation.

Market Demand: Higher demand for liquid, low-risk investments increases FUZXX.US's price, while lower demand decreases it.

Fund Expenses: Operating expenses, management fees, and other costs charged by the fund manager impact the overall return and price of FUZXX.US.

Economic Conditions: Overall economic health, including inflation and employment rates, can affect investor sentiment and demand for money market funds.

Regulatory Changes: New regulations or government policies related to money market funds can influence their structure, risk profile, and attractiveness to investors.