Overall Market Conditions: Broad market trends like economic growth, inflation, and interest rates influence investor sentiment and fund flows, affecting SSFOX's NAV.

Bond Yields: SSFOX's price is sensitive to changes in interest rates, particularly those of U.S. Treasury securities and other high-grade bonds.

Credit Spreads: Widening credit spreads, reflecting increased risk aversion, can lower the fund's value as the prices of corporate bonds fall.

Fund Flows: Large inflows can increase demand for the fund, potentially driving up its price, while outflows can have the opposite effect.

Fund Management: The fund manager's investment decisions and ability to select undervalued or high-performing bonds impact returns.

Inflation Expectations: Rising inflation erodes the value of fixed-income securities, leading to potential price decreases for SSFOX.

Economic Data Releases: Key economic indicators, such as GDP growth, employment figures, and consumer price index data, shape interest rate expectations and influence bond prices.

Geopolitical Events: Major global events, like political instability or trade wars, can trigger risk-off sentiment, affecting fixed-income markets and SSFOX.

Regulatory Changes: Government regulations impacting the bond market or the financial industry in general can also affect bond fund prices.