PLANO, Texas, Jan. 14, 2025 (SEND2PRESS NEWSWIRE) -- Optimal Blue today released its December 2024 Market Advantage mortgage data report, showcasing year-over-year (YoY) growth in mortgage activity, even as seasonal trends led to a month-over-month (MoM) decline in rate lock volumes. Overall, December mortgage lock volume was up 26% YoY, driven by an 18% increase in purchase locks, a 43% rise in cash-out refinances, and an 82% jump in rate-and-term refinances.