How a Mortgage Company Used AI to Close $4.8 Billion in One Day

The Day Everything Changed

In May 2025, UWM CEO Mat Ishbia unveiled Mia — an AI voice assistant that automatically called homeowners when rates dropped enough for refinancing.

The Numbers

400,000+ outbound calls. 40% answer rate vs 10-15% average. 14,000+ refis closed. 3.5% conversion vs 1% industry average. $4.8 billion locked in a single day.

Why It Works

The loan officer who contacts the borrower first wins 78% of refinances. AI eliminates delay entirely. Rate drops, system detects it, borrower gets a call with exact savings, LO gets notified.

RateSignal: Enterprise AI for Every LO

RateSignal.ai brings the same capability to independent loan officers. Upload your client list, set savings thresholds, and RateSignal monitors rates 24/7. When a client qualifies, AI calls them instantly.

One refi commission averages $3,500. The tool costs $197/month. One deal pays for nearly two years.

See It In Action

Visit RateSignal.ai for a live demo. We'll simulate a rate drop and show you exactly what happens.