The largest bank holder of agency MBS at Sept. 30? That would be Bank of America at $422.1 billion.

Most of the banking industry’s biggest players in residential MBS reported substantial increases in the value of their holdings in the third quarter. (Includes two data tables.)

Portfolio management of the Federal Reserve’s agency MBS holdings accounted for much of the Fannie/Freddie Supers issuance in the third quarter. (Includes two data tables.)

Most of the damage came at Rocket Mortgage and Rithm/Newrez, which took hits on the asset value of their MSRs.

Nonbanks reported a massive $1.38 million decline in mortgage-banking income during the third quarter. Most of that was because of accounting issues related to servicing.

Government mortgage insurance programs captured most of the primary MI gain in the third quarter.

MGIC saw a significant gain in market share during the third quarter, but private MIs overall lost ground to FHA and VA due to surging refinance activity. (Includes four data tables.)

Fannie Mae had the biggest monthly gain in total production among the three agencies, which raised its share of agency MBS issuance in October two percentage points to 27.3%.

While agency MBS issuance surged in October, some of the top sellers posted declines in volume compared with September.

Rate-term refinances fueled most of the increase in agency single-family MBS issuance last month, but the wave may already be running out of propulsion. (Includes two data tables.)