NAV of Underlying Bonds: PINV.TO's price is heavily influenced by the net asset value of the Canadian investment grade corporate bonds it holds. A rise in bond prices increases the NAV and therefore PINV.TO's price, and vice versa.

Interest Rate Movements: Rising interest rates generally decrease bond prices as newer bonds offer higher yields, making existing bonds less attractive. Conversely, falling rates usually increase bond prices.

Credit Spreads: Widening credit spreads, reflecting increased perceived risk of corporate bonds, negatively impact PINV.TO's price. Narrowing spreads, indicating reduced risk, tend to boost the price.

Supply and Demand: General market sentiment towards Canadian corporate bonds can drive buying or selling pressure, impacting PINV.TO's price independent of the underlying bond values.

ETF Flows: Large inflows into PINV.TO can temporarily increase its price as the fund manager purchases more underlying bonds. Conversely, significant outflows can pressure the price downward as the fund sells bonds.