Federal Funds Rate: SNYXX's yield, and thus its price (NAV), is directly impacted by the Federal Reserve's target federal funds rate. Increases generally lead to higher yields and potentially NAV increases, while decreases have the opposite effect. Short-Term Interest Rates: Other short-term interest rates, like Treasury bill yields and commercial paper rates, influence SNYXX's returns and NAV. SNYXX invests in similar instruments, so their yields move in tandem. Market Sentiment: General investor confidence and risk appetite can impact demand for money market funds like SNYXX. Flight-to-safety scenarios often increase demand, potentially pushing NAV slightly higher. Credit Risk: While SNYXX primarily invests in high-quality securities, slight variations in the creditworthiness of its holdings can affect its yield and, indirectly, its NAV. Operating Expenses: The fund's expense ratio directly reduces the yield passed on to investors, subtly affecting the NAV's growth over time.