Underlying Asset Performance: The price of PSPH.PA closely tracks the performance of its underlying assets, typically a basket of sustainable corporate bonds. Strong bond performance drives the ETF price higher.

Interest Rate Changes: Rising interest rates generally decrease bond values, thus lowering the ETF price. Conversely, falling rates tend to increase bond values and the ETF price.

Credit Spreads: Widening credit spreads, indicating higher perceived risk of default, negatively impact bond prices and the ETF. Narrowing spreads suggest lower risk and can increase the ETF price.

Supply and Demand: Like any traded security, supply and demand influence the ETF's market price. Higher demand relative to supply pushes the price up, and vice versa.

Market Sentiment: Overall investor sentiment towards sustainable investing and fixed income assets affects demand for PSPH.PA. Positive sentiment can increase demand and price.

Inflation Expectations: Higher inflation expectations typically lead to higher interest rates and lower bond prices, thus impacting the ETF negatively. Lower expectations can have the opposite effect.

Fund Flows: Large inflows into the ETF can put upward pressure on its price, while large outflows can put downward pressure.

Management Fees and Expenses: While not directly affecting the market price, higher fees reduce the net return to investors, potentially making the ETF less attractive compared to competitors.