Interest Rates: WMOXX's price is closely tied to prevailing interest rates. When rates rise, its yield typically increases, making it more attractive, which can slightly increase its price. Conversely, falling rates can decrease its yield and potentially its price.

Credit Risk: While WMOXX invests in high-quality, short-term securities, some minimal credit risk exists. Downgrades or concerns about the creditworthiness of its holdings could negatively impact its price.

Market Liquidity: High liquidity in the short-term debt market supports WMOXX's valuation. Reduced liquidity, especially during times of economic stress, could put downward pressure on its price.

Fund Flows: Large inflows into WMOXX may lead to increased demand and a slight price increase, while significant outflows could necessitate selling assets, potentially lowering its price.

Management Fees: Although relatively stable, changes in WMOXX's management fees could indirectly affect its price by impacting its overall return.

Economic Conditions: Broad economic factors like inflation, GDP growth, and unemployment can influence interest rate expectations and, consequently, WMOXX's price.