dx
The “dx” module has one parameter - the stock ticker. For example, for SPX:
dx SPX
The purpose of this module is to visualize an estimate of the potential dealer hedging landscape for the next 30 days.
You will see two 3D surfaces next to each other. Use you mouse to zoom and pan like you would a video game.
Both surfaces have the same x (width) and z (depth) axes. The x-axis is price, and the current price should be at the center. The z-axis is time, and the nearest point corresponds to current time, the furthest corresponds to 30 days in the future.
What differs between the two surfaces is the y-axis. The one on the left displays delta, the one on the right displays gamma.
Before exploring them further - let’s cover the concept: