Quarterly Index Briefs
Q1 2026 Index Brief
The first quarterly index brief following the AT50 launch, covering index observations, constituent changes, and methodology notes for Q1 2026.
Q1 2026 Index Brief
This brief summarises the AT50 Index observations, constituent changes, and methodology notes for the first quarter of 2026.
Quarter at a Glance
The AT50 Index completed its inaugural quarterly review in Q1 2026. The review assessed all current and prospective constituents against the methodology criteria, with the Governance Council ratifying the final constituent list.
Constituent Changes
No constituent additions or removals were made in the Q1 2026 review. The full 50-constituent index remains as established at launch.
Index Performance
Index performance data for Q1 2026 will be published in the full institutional report, available to subscribers.
Methodology Notes
No methodology changes were enacted in Q1 2026. The Governance Council noted several items under observation for potential methodology refinements in subsequent quarters.
Upcoming Reviews
The Q2 2026 review is scheduled for late June 2026. Companies seeking consideration for inclusion should ensure their data submissions are complete by the submission deadline.
Full Q1 2026 Index Brief is available to institutional subscribers.