Bond Market Dynamics: Overall bond market sentiment, interest rate changes, and economic outlook all influence the price. Rising rates typically decrease bond values.

Mortgage-Backed Security Specifics: Prepayment rates, delinquency rates, and the creditworthiness of underlying mortgages within the portfolio impact pricing. Higher prepayments or defaults can reduce value.

Supply and Demand: Trading volume and investor interest in the ZMBS.TO ETF directly affect its price. High demand drives prices up, while increased selling pressure pushes them down.

ETF Management Fees: While not a direct price driver, higher expense ratios can indirectly affect the attractiveness of ZMBS.TO compared to other similar ETFs.

Economic Conditions: Broad macroeconomic factors like inflation, unemployment, and GDP growth can impact both interest rates and the housing market, ultimately influencing ZMBS.TO.

Issuer Risk: While typically diversified, potential financial instability of the mortgage-backed security issuers could negatively impact the ETF's perceived value.

Regulatory Changes: Changes in regulations pertaining to mortgage lending, securitization, or ETF operations can affect the appeal and pricing of ZMBS.TO.

Global Events: Major global economic or political events can trigger risk-off sentiment, leading investors to reallocate from perceived riskier assets like mortgage-backed securities.

Interest Rate Expectations: Anticipation of future interest rate changes by central banks can significantly influence current bond prices, including those held within ZMBS.TO.

Credit Spreads: Changes in the difference between yields on mortgage-backed securities and benchmark rates (like government bonds) reflect market perceptions of credit risk.