About the heatmap
The heatmap visualizes short-selling metrics across the whole US market at a glance. Tile size and color reflect the selected metric (short % of float, cost to borrow, short volume ratio, or squeeze score), so heavily shorted pockets of the market stand out immediately.
Frequently asked questions
What does the heatmap show?
Each tile is a stock, colored and sized by the selected short-selling metric such as short % of float, cost to borrow, or squeeze score. It provides a market-wide view of where short pressure is concentrated.
How current is the heatmap data?
Cost-to-borrow data refreshes throughout each trading session, short volume updates daily, and short interest updates twice monthly per FINRA's publication schedule.