Underlying Bond Prices: CFOU.TO's price heavily depends on the underlying Canadian corporate bonds it holds. Rising bond yields decrease bond prices, lowering CFOU.TO's value, and vice versa.

Credit Quality: Changes in the perceived creditworthiness of the bond issuers influence CFOU.TO. Downgrades increase risk premiums, lowering prices; upgrades do the opposite.

Interest Rate Changes: Bank of Canada policy and market expectations about interest rates affect bond yields and CFOU.TO's price. Higher expected rates generally depress the ETF.

Supply and Demand: General investor sentiment and demand for corporate bond ETFs impacts CFOU.TO's price. High demand can push the price above its net asset value (NAV).

Market Liquidity: The liquidity of the underlying corporate bond market and CFOU.TO itself influences pricing. Illiquidity can lead to wider bid-ask spreads and price volatility.

Expense Ratio: While not directly affecting price swings, the ETF's management expense ratio (MER) reduces its overall return and can make it less attractive compared to similar ETFs.