DocsPosition Grid

Position Grid

The Position Grid displays options positioning data in a two-dimensional heatmap, with strike prices on the rows and expiration dates on the columns. Each cell is color-coded by position size, giving you a bird's-eye view of the entire options surface. This view shows the total options position size (calls + puts).

Position Grid heatmap
Position Grid — 2D heatmap with strikes on rows and expirations on columns

What This View Shows

The grid represents the complete picture of how positions are distributed across both strike and expiration dimensions simultaneously. Green cells indicate positive options positions, red cells indicate negative options positions, and color intensity reflects the magnitude. A dashed horizontal line marks the current underlying price.

Toolbar Controls

Product Selector

Choose which underlying product to display (SPX, VIX).

Zoom Controls

Minus (−) / Plus (+) to adjust zoom, Center and Reset Zoom to snap back to the current price, and Fit to View to auto-fit all data.

Configuration Panel

Participant Filter

Select which market participant category to display. Default is Market Maker.

Strike Bucketing

Group strikes into intervals to reduce the number of rows: Show All Strikes, or bucket by 5, 10, 25, or 50 point intervals.

Expiration Bucketing

Group expirations into time periods to reduce the number of columns:

  • None — Show each individual expiration date
  • Day / Week / Month / Quarter / Year — Group by the specified period

Expiration Date Format

FormatExample
MM-DD03-21
YY-MM-DD26-03-21
Days to Expiration27d

💡 Tip

Use Expiration Bucketing set to Week or Month for a high-level view, then switch to None to drill into specific expirations. The Days to Expiration format makes it easy to identify near-term vs. longer-dated concentrations. Adjust the Color Normalization percentile range if outliers are washing out the gradient.