Core Viewpoint - President Trump's initiative to purchase $200 billion in mortgage bonds aims to lower borrowing costs and improve home affordability for Americans, coinciding with his proposal to ban large institutional investors from buying single-family homes [1][5]. Mortgage Market Impact - Following the announcement, the average interest rate for a 30-year fixed mortgage dropped to 5.99%, down from 6.21%, marking a significant 22-basis-point decrease [3][5]. - The bond-buying plan is expected to create a favorable environment for the housing market, as rising mortgage bond prices typically lead to lower interest rates [2][5]. Market Size and Limitations - The $200 billion in mortgage bonds represents only about 1.4% of the total U.S. mortgage market, which is approximately $14.5 trillion, suggesting limited impact on the overall housing market [6]. - The affordability gap remains significant, with a typical U.S. household needing an annual income of about $118,530 to afford a median-priced home of $402,500, which is over 50% higher than the current median household income of roughly $77,700 [6].