Underlying Bond Performance: The price of ONEB.TO is directly tied to the performance of the Canadian government bonds it holds. Bond yields and prices have an inverse relationship; rising yields decrease bond prices, and vice-versa.

Interest Rate Changes: Changes in the Bank of Canada's policy rate significantly influence bond yields and, consequently, the value of ONEB.TO. Expectations of future rate hikes or cuts can also move the ETF's price.

Inflation Expectations: Higher inflation erodes the real value of fixed-income securities, putting downward pressure on bond prices and ONEB.TO. Conversely, lower inflation can boost bond prices.

Credit Risk Perception: Although ONEB.TO focuses on Canadian government bonds (considered very low risk), broad market concerns about creditworthiness can still affect demand and pricing.

Supply and Demand: General investor sentiment and demand for fixed-income investments impact ONEB.TO. High demand can drive up prices, while increased selling pressure can lead to price declines.

Economic Growth: Strong economic growth often leads to higher interest rates, which can negatively affect bond prices. Slower growth may lead to lower rates, supporting bond prices.