- Affordability gains fuel with biggest refi wave since early 2022, MSR values dip and securitization trends point to rising large-lender market share -

PLANO, Texas, Oct. 14, 2025 (SEND2PRESS NEWSWIRE) — Optimal Blue today released its September 2025 Market Advantage mortgage data report, which showed a sharp increase in rate-lock activity as mortgage rates fell throughout the month to their lowest levels in nearly a year. Total lock volume rose 28% month over month (MoM), led by a surge in refinance lending as borrowers seized on the opportunity to lower monthly payments. Purchases also climbed 6% MoM, outperforming typical seasonal trends as improved affordability brought more buyers into the market.

“The rate rally that began in late summer accelerated in September, and borrowers r

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