Interest Rates: PCUXX is a money market fund, so its yield and price are heavily influenced by prevailing interest rates set by the Federal Reserve. When rates rise, PCUXX's yield typically increases, making it more attractive and potentially increasing its price.

Credit Quality: The creditworthiness of the securities held by PCUXX, such as commercial paper and Treasury bills, impacts its perceived risk and thus its price. Higher quality holdings tend to reduce risk.

Fund Expenses: The fund's expense ratio, which covers management and operational costs, directly affects the net return to investors and can therefore indirectly impact the perceived value of the fund.

Supply and Demand: General market conditions and investor sentiment impact the demand for money market funds. Higher demand may slightly push prices up.

Maturity of Holdings: The weighted average maturity of the securities held by PCUXX affects its sensitivity to interest rate changes. Longer maturities generally mean more price volatility.

Economic Conditions: Broad economic factors like inflation, unemployment, and GDP growth can influence interest rate expectations and, consequently, the price of PCUXX.