What changed
- GEX Matrix now opens to a single-symbol By Expiration workspace while preserving the Watchlist Matrix view.
- The strike-by-expiration grid supports GEX, DEX, VEX, and CEX with Open Int or Volume weighting.
- Bars mode compares signed magnitude against the largest absolute value in the visible matrix, while percentile brightness helps important concentrations stand out.
- Heat mode provides a full-cell signed view with robust contrast and exact values on hover.
- Scope and Term controls bound the view to actual available strikes and chronological expirations.
- Exposure by Expiration combines net contribution bars with a cumulative line.
- PG, ZG, and NG Term Structure keeps spot and current ATM-straddle Expected Move context on the same expiration timeline.
- The active matrix refreshes from completed options versions, while same-version views are reused to avoid unnecessary requests.
Read GEX Matrix: Reading Exposure by Strike and Expiration for the complete workflow, definitions, refresh behavior, and interpretation limits.