A strong flow of jumbo mortgages and GSE-eligible loans helped boost non-agency MBS issuance in the third quarter. (Includes three data files.)

Issuance of non-agency MBS increased by 9.3% during the third quarter to $65.27 billion.

Non-agency MBS was the only sector in structured finance that saw increased production in the third quarter. It helps that most of its collateral was originated before the most recent run-up in rates. (Includes three data tables.)

Some $10.016 trillion of residential MBS was outstanding as of the end of June, a first for the market.

Most of the second-quarter buybacks involved loans delivered into mortgage-backed securities issued in 2025.

Seller repurchases of defective Fannie/Freddie loans increased 19% from the first to the second quarter of 2026. Although the 2025 book appears to be one of the cleanest in recent years, unresolved buyback claims were up 18% in the second quarter. (Includes three data tables.)

Ginnie Mae and the non-agency MBS sector led residential MBS over the $10 trillion mark in the second quarter. Mutual funds and foreign investors increased their holdings. (Includes two data tables.)

Holdings declined by 2.8% during the second quarter of 2026.

Bank holding companies reported a 3% decline in trading-account holdings of residential MBS, commercial MBS and ABS in the second quarter. (Includes two data tables.)

Commercial banks reported a small decline in structured finance assets backed by commercial and industrial loans, mostly from declining held-to-maturity accounts. Experts say bank CLO holdings in loan format continue to grow. (Includes data table.)