Underlying Bond Prices: ZDH.TO holds Canadian government bonds; their prices directly influence the ETF's value. Bond prices fall when interest rates rise, and vice versa.

Interest Rate Changes: As a bond ETF, ZDH.TO is sensitive to interest rate movements. Rising interest rates typically decrease the ETF's price, lowering the bond values.

Inflation Expectations: Higher inflation expectations often lead to higher interest rates, impacting bond prices. Increased inflation can reduce the real return of bonds, decreasing demand and price.

Credit Risk Perception: Although ZDH.TO holds government bonds (generally considered very safe), any perception of increased credit risk in the overall Canadian economy can slightly impact its price.

Supply and Demand: Market dynamics play a role. High demand for ZDH.TO can push its price slightly above its net asset value (NAV), while increased selling pressure can lower the price.

ETF Management Fees: The annual management expense ratio (MER) indirectly affects the ETF's total return. Higher fees reduce the net return to investors.

Liquidity: The ETF's trading volume and bid-ask spread can influence its immediate price. Higher liquidity usually leads to tighter spreads and easier trading.