Housing Sept 30th Weekly Update: Inventory up 0.8% Week-over-week, Up 36.7% Year-over-year

Altos reports that active single-family inventory was up 0.8% week-over-week. Inventory is now up 48.0% from the February seasonal bottom.  

Altos Home Inventory Click on graph for larger image.

This inventory graph is courtesy of Altos Research.

As of September 27th, inventory was at 731 thousand (7-day average), compared to 725 thousand the prior week. 
This is the highest level of inventory since May 2020.  
The second graph shows the seasonal pattern for active single-family inventory since 2015.

Altos Year-over-year Home Inventory

The red line is for 2024.  The black line is for 2019.  
Inventory was up 36.7% compared to the same week in 2023 (last week it was up 37.2%), and down 23.4% compared to the same week in 2019 (last week it was down 24.0%). 
Back in June 2023, inventory was down almost 54% compared to 2019, so the gap to more normal inventory levels is slowly closing.
Mike Simonsen discusses this data regularly on Youtube.