Realpha Tech Corp. shares surge 27.56% intraday after upgrading AI loan assistant and reporting decreased short interest.

Realpha Tech Corp. surged 27.56% intraday, following the company's announcement of an upgrade to its internal AI loan assistant, which automates document classification, extraction, and verification to optimize mortgage operations. Additionally, a report on September 10, 2025, showed a 3.10% decrease in short interest from the previous month, with a short interest coverage ratio of only 0.4 days.