Investment Strategy: FOIJTX.US tracks a specific index, so its price closely mirrors the performance of that index. Changes in the index's composition or weighting directly affect the fund.

Market Conditions: General market sentiment and economic conditions heavily influence all stock prices, including those held within FOIJTX.US. Bullish markets tend to lift the fund, while bearish markets depress it.

Fund Flows: Large inflows of cash into the fund can increase demand and potentially raise its price. Conversely, significant outflows can force the fund to sell assets, potentially lowering its price.

Expense Ratio: While not directly impacting daily price fluctuations, a higher expense ratio can detract from long-term returns compared to similar, lower-cost funds, thus affecting its relative attractiveness.

Underlying Holdings Performance: The individual performance of the stocks held within FOIJTX.US is a primary driver of its price. Positive performance in key holdings boosts the fund, while negative performance detracts.