Reports by quarter
The index opened with a 2024-Q1 backfill and has grown every quarter since. Coverage growth is not the same as market coverage: read the quarterly reports for what changed in method and rule set each quarter.
| Quarter | Reports | Batches | Median purity | IQR (pp) | Flagged | What changed |
|---|---|---|---|---|---|---|
| 2024-Q1 | 161 | 24 | 99.23 | 0.89 | 31 | Backfill quarter. Reports assayed earlier were accepted retrospectively where custody could be documented. |
| 2024-Q2 | 287 | 48 | 99.10 | 1.03 | 54 | First quarter of live submission. |
| 2024-Q3 | 464 | 77 | 99.07 | 1.33 | 113 | Nordanalyt Laboratories began contributing. |
| 2024-Q4 | 416 | 74 | 99.09 | 0.90 | 104 | Impurity-fingerprint matching introduced; first shared-bulk links published. |
| 2025-Q1 | 672 | 115 | 99.14 | 0.99 | 177 | Anomaly rule set expanded from seven rules to eleven. |
| 2025-Q2 | 619 | 110 | 99.05 | 0.92 | 191 | Gravimetric mass-balance reconciliation became mandatory on new records. |
| 2025-Q3 | 816 | 146 | 99.03 | 1.17 | 236 | Kestrel Bioanalytical began contributing; gradient-length normalisation introduced. |
| 2025-Q4 | 762 | 139 | 99.12 | 1.09 | 236 | Provenance classification became a required field. |
| 2026-Q1 | 806 | 150 | 99.22 | 0.92 | 182 | Rule AX-R12 added. Dataset v2 schema published. |
| 2026-Q2 | 1,126 | 196 | 99.00 | 1.11 | 298 | Buyer-sourced sensitivity analysis added to every supplier scorecard. |
| 2026-Q3 | 455 | 75 | 98.93 | 1.12 | 131 | Quarter in progress. Aggregates for this quarter are provisional. |