Fannie Mae Weekly Mortgage Applications Data

The PALI and RALI are sets of weekly data series that provide timely and ongoing tracking of purchase and refinance activity and historical trends based on data from Fannie Mae’s automated underwriting system, Desktop Underwriter® (DU®). View the methodology for details on how these indices are constructed.

The data is scheduled to be released weekly at 10:00 a.m. ET on Tuesdays, except when Monday or Tuesday is a holiday, reflecting application activity from the preceding week (Saturday through Friday). In the event of a holiday occurring on a Monday or Tuesday, the index will be published on Wednesday of that week.

This is to capture the application activities in the standard business week and aligns with normal mortgage industry practice. As long as this definition captures the same five business days, it will not materially impact index values.

The indices do not report the raw number of applications and thus cannot be used to determine the number of applications submitted. Instead, the PALI and RALI can be used to understand changes in the level of mortgage activity for both application count and unpaid principal balance (UPB).

The PALI and RALI leverage DU’s broad market footprint to provide a current and historical view of mortgage application activity. Based on Home Mortgage Disclosure Act (HMDA) data from 2018 through 2024, a majority of loans used DU in the underwriting process, and it was the most widely used underwriting engine in that timeframe.