Interest Rates: Rising interest rates generally decrease bond prices, as newer bonds offer higher yields, making older, lower-yielding bonds less attractive.

Inflation: Higher inflation erodes the real value of future bond payments, leading to lower bond prices as investors demand higher yields to compensate.

Economic Growth: Stronger economic growth may lead to expectations of higher interest rates and inflation, which can negatively impact bond prices.

Government Policy: Fiscal and monetary policies, such as government borrowing or quantitative easing, can influence bond supply and demand, affecting prices.

Credit Rating: Changes in the credit rating of the issuer (Government of Canada) impact perceived risk, with downgrades lowering prices and upgrades increasing them.

Global Events: Geopolitical events or global economic shifts can create uncertainty and influence investor sentiment, impacting demand for safe-haven assets like government bonds.

Supply and Demand: Increased supply of new bonds can put downward pressure on prices, while higher demand can drive prices up, especially for benchmark bonds like the CA20Y.GBOND.