Call Wall vs Put Wall: What Is the Difference?

The comparison

A Call Wall is the strike with the strongest call-side concentration under the page's structure definition. A Put Wall is the corresponding put-side concentration. Comparing their location and surrounding structure gives a map of where options positioning is more concentrated on each side.

How to use the pair

Read both walls with Gamma Flip, the shape between them, and the current session context. A wide, balanced map means something different from a narrow or inverted map. The pair is most useful as a way to organize observation and later review.

• Compare location before comparing labels.
• Check whether the surrounding profile is dense or sparse.
• Use the timestamp and session scope shown on the page.

Common misreadings

Neither wall is a promise that price will reverse, stop, or reach a particular level. Walls can move as positioning changes, and thin open interest can make an apparent concentration less meaningful.