Investment performance of underlying funds: FFBOMX.US is a fund of funds, meaning its performance relies on the performance of the other Fidelity mutual funds it invests in.

Market conditions: General market trends, economic indicators (interest rates, inflation), and geopolitical events impact the overall investment climate, affecting FFBOMX.US.

Asset allocation changes: Shifts in the fund's asset allocation strategy, like increasing or decreasing exposure to certain asset classes, will influence its price.

Fund expenses: Operating expenses and management fees charged by the fund reduce returns and indirectly affect the fund's net asset value (NAV).

Investor demand: Increased demand for the fund can drive up its price, while high redemption rates can exert downward pressure.

Fidelity's Investment Strategy: Changes in Fidelity's overall investment strategies and decisions related to the funds which FFBOMX invests will impact the price.