[Market Interest Rates]: Rising rates can make bond yields more attractive, potentially drawing investors away from PZINX.US, lowering its price.

[Inflation Expectations]: Higher inflation erodes the real value of bond yields, making PZINX.US less appealing and potentially decreasing its price.

[Credit Risk]: Changes in the perceived creditworthiness of the bonds held by PZINX.US can affect its price; downgrades may lead to lower prices.

[Economic Growth]: Strong economic growth can lead to higher interest rates and inflation, negatively impacting PZINX.US price.

[Fund Flows]: Significant inflows or outflows from PZINX.US can influence its price due to buying or selling pressure.

[Maturity and Duration]: PZINX.US's average maturity and duration influence its sensitivity to interest rate changes; longer durations mean greater price volatility.

[Fund Management Decisions]: Changes in the fund's investment strategy or asset allocation can impact its performance and, therefore, its price.