Will Rising Treasury Rates Mean Higher Mortgage Interest Costs Ahead?

Bankrate.com, Jan. 19, 2021–Peter G. Miller
As it happens, 2020 was very good to mortgage lenders. Borrowers lined up to finance and refinance at record-low rates, and the results showed up on lender bottom lines. According to the Mortgage Bankers Association, the typical lender had a production profit of $5,535 per loan in the third quarter of last year, up substantially from the $1,924 earned during the same period in 2019.
https://www.bankrate.com/mortgages/treasury-versus-mortgage-rates/