SLSSX.US is a Schwab Target Retirement fund. Its price (Net Asset Value or NAV) is influenced by several factors: Stock Market Performance: SLSSX invests heavily in stocks. General market upturns drive its price up, downturns cause it to fall. Bond Market Performance: A portion of SLSSX is in bonds. Rising interest rates typically decrease bond values, lowering the fund's NAV. Falling rates increase bond values. Target Date Proximity: As the target retirement date nears, the fund's asset allocation shifts to be more conservative (more bonds, fewer stocks). This affects its risk profile and potential returns. Fund Management Decisions: Schwab's choices regarding asset allocation, security selection, and sector weighting influence performance. Skillful management can enhance returns, while poor choices can detract from them. Expense Ratio: The fund's operating costs (expense ratio) directly impact its net returns. Higher expenses reduce the amount available to be returned to shareholders. Investor Flows: Large inflows of cash can temporarily depress performance as the fund managers deploy new capital. Outflows may require selling assets, which can also affect the price. Inflation: Higher inflation expectations often lead to higher interest rates, impacting both stock and bond valuations within the fund. Economic Conditions: Economic growth or recession can influence corporate earnings and bond yields, thus impacting SLSSX's value.