The biggest growth was in securitization of recently originated jumbo loans and expanded-credit mortgages.

Total non-agency MBS issuance rocketed up 82.8% last year. A huge surge in traditional jumbo loans drove a big increase in prime MBS issuance, helped by the GSE-eligible investor-property sector. (Includes three data charts.)

Depository institutions increased their agency mortgage servicing rights by just 0.4% during the final three months of the year.

Many of the top nonbank servicers recorded strong increases in their agency servicing rights, through both organic production and bulk MSR purchases in the secondary market. (Includes two data charts.)

Continued low interest rates, courtesy of the pandemic, was a key factor in the results...

Single-family MBS issuance by Fannie, Freddie and Ginnie was up 10% from 2020 to 2021, but bigger percentage gains were posted by non-agency RMBS, commercial MBS and ABS production. (Includes three data charts.)

Refinancing continued to account for most new business at Fannie Mae, Freddie Mac and Ginnie Mae in 2021, and the biggest gain was in purchase-mortgage activity. (Includes two data charts.)

Time to celebrate: Annual agency MBS issuance rose 10.1% from 2020 to a record $3.471 trillion in 2021.

A significant factor was the entry of Western Alliance Bank into mortgage banking after its acquisition of nonbank AmeriHome Mortgage...

Plenty of nonbanks have announced stock buyback programs over the past year...