Fannie and Freddie have upped their retained MBS holdings significantly in recent months, as have the Federal Home Loan Banks. Analysts expect money managers and insurance firms to remain key investors. (Includes two data tables.)

Annaly Capital Management remained the top REIT in MBS holdings, though several other shops expanded their portfolios at higher rates during the third quarter. The REIT industry added roughly $40 billion to its combined portfolio over the past year. (Includes two data tables.)

The growing securities holdings in Fannie’s retained mortgage portfolio include a large share of non-Fannie agency MBS.