Federal Funds Rate: RMFFX.US invests in money market instruments. Therefore, changes in the Federal Funds Rate directly influence the yields, thus affecting the fund's price.

Inflation: Higher inflation erodes the real value of investments. RMFFX.US prices are affected by inflation expectations as investors seek higher returns to compensate.

Credit Risk: RMFFX.US investments are subject to credit risk. Default or perceived risk increases can depress the fund's net asset value, impacting its price.

Liquidity: Market liquidity influences the ability to buy or sell fund holdings. Reduced liquidity can lead to price volatility in RMFFX.US, thus affecting its price.

Economic Growth: Stronger economic growth usually leads to increased interest rates, which can affect RMFFX.US yields and therefore its price.

Investor Demand: Increased demand for money market funds such as RMFFX.US can drive up prices, while decreased demand can cause prices to fall.

Geopolitical Events: Major global events may create uncertainty, affecting interest rates and the value of assets held by RMFFX.US and subsequently its price.