Here is a nice follow up Footprint example that has been annotated to show a couple of key concepts. (click for larger view)
- Deceleration into an important level
- Double bottom.
Nothing provides intra-bar transparency like a Footprint chart, and never is it more important than on retests of key levels. The screenshot below (click for larger image) shows a perfect example of how Footprint chart information provided confirmation of volume drying up at this level and would have added confidence to trust he double bottom pattern would hold.