Factor 1: Bond Market Conditions: Interest rate changes, inflation expectations, and economic growth significantly impact bond yields and prices, affecting the value of the MTBA.US ETF which holds mortgage-backed securities. Factor 2: Mortgage Rates: Fluctuations in mortgage rates influence the attractiveness of existing mortgage-backed securities held by the ETF. Higher rates typically decrease the value of these securities. Factor 3: Prepayment Risk: The risk of homeowners refinancing or paying off their mortgages early affects the cash flow and value of the underlying mortgage-backed securities within the MTBA.US ETF. Factor 4: Credit Risk: The perceived creditworthiness of borrowers underlying the mortgage-backed securities impacts the ETF's value. Concerns about defaults can lower prices. Factor 5: Supply and Demand: General market sentiment and investor demand for mortgage-backed security ETFs like MTBA.US can drive price fluctuations, independent of underlying asset values.