Fund Performance: RIGGX's price directly reflects the performance of its underlying assets. Strong returns increase demand and the NAV, boosting the price. Conversely, poor performance can lead to decreased demand and a lower price.

Market Conditions: Broad market trends, such as bull or bear markets, significantly impact RIGGX. Positive market sentiment often lifts all funds, while negative sentiment can depress prices. Sector-specific trends related to RIGGX's investments also matter.

Interest Rates: Rising interest rates can make fixed-income investments less attractive relative to other asset classes, potentially decreasing demand for RIGGX and lowering its price. Conversely, falling rates can boost demand and the price.

Fund Flows: Large inflows into RIGGX can drive up the price temporarily as the fund manager deploys the new capital. Outflows can force the manager to sell assets, potentially lowering the price. These are typically driven by investor sentiment and market outlook.

Expense Ratio: While not a direct driver of price fluctuations, a high expense ratio can detract from returns over time, making RIGGX less attractive compared to similar funds with lower costs, potentially impacting long-term demand and indirectly its price.

Inflation: High inflation can erode the value of fixed-income assets, potentially decreasing demand for RIGGX and lowering its price. Inflation expectations are also crucial.