Fund Performance: Historical returns and relative performance versus peers influence investor demand, affecting the fund's net asset value NAV.

Interest Rate Changes: As a bond fund, SWYBX's price is sensitive to interest rate fluctuations. Rising rates generally cause bond prices to fall, and vice versa.

Credit Quality: Changes in the creditworthiness of the bonds held within the fund can impact its value. Downgrades can lower the fund's price.

Market Conditions: Overall economic conditions, including inflation and economic growth, can influence investor sentiment and the demand for fixed-income investments.

Fund Flows: Significant inflows of capital can drive up the NAV, while outflows can put downward pressure on the price.

Expense Ratio: Higher expense ratios can detract from returns, potentially making the fund less attractive compared to similar, lower-cost options.

Maturity & Duration: The fund's average maturity and duration impact its sensitivity to interest rate changes. Longer durations mean greater price volatility.

Fund Management: The skill and strategy of the fund managers in selecting and managing the bond portfolio can influence performance and, consequently, price.