Interest Rates: FLKFXX.US, being a money market fund, is highly sensitive to changes in prevailing interest rates. Higher rates typically lead to increased yields and potentially higher fund prices.

Federal Reserve Policy: The actions of the Federal Reserve, particularly changes to the federal funds rate and quantitative easing policies, exert a strong influence on short-term interest rates and therefore, FLKFXX.US's price.

Economic Conditions: Overall economic health, including inflation, employment figures, and GDP growth, impacts expectations for interest rate movements and subsequently affects the fund's yield and price.

Credit Risk: While generally considered low-risk, the creditworthiness of the issuers of securities held within the fund can impact its price. Downgrades or perceived risks can negatively affect it.

Liquidity: Demand for highly liquid assets can fluctuate, impacting the flow of funds into or out of FLKFXX.US, which might cause minor price changes due to adjustments in the underlying holdings.

Fund Expenses: The expense ratio of FLKFXX.US directly reduces the net yield paid to investors, indirectly affecting its relative attractiveness and potentially its price compared to similar funds.

Supply and Demand: General investor sentiment and appetite for money market funds can affect the demand for FLKFXX.US, influencing its price within the broader market dynamics.