“It looks like the U.S. mortgage financing system is largely nationalized.⏎⏎87.5% of mortgages are purchased by govt entities that resell them as MBS, and the Fed has bought ~1/3 of all the MBS they've created?”
John Wake
https://www.blackknightinc.com/data-reports/black-knights-june-2023-originations-market-monitor/