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 | 163 | 27 | 99.09 | 0.88 | 107 | Backfill quarter. Reports assayed earlier were accepted retrospectively where custody could be documented. |
| 2024-Q2 | 349 | 50 | 99.08 | 1.10 | 280 | First quarter of live submission. |
| 2024-Q3 | 522 | 86 | 98.97 | 1.30 | 356 | Nordanalyt Laboratories began contributing. |
| 2024-Q4 | 434 | 76 | 98.97 | 1.18 | 321 | Impurity-fingerprint matching introduced; first shared-bulk links published. |
| 2025-Q1 | 702 | 106 | 99.12 | 1.16 | 531 | Anomaly rule set expanded from seven rules to eleven. |
| 2025-Q2 | 556 | 99 | 99.07 | 1.17 | 410 | Gravimetric mass-balance reconciliation became mandatory on new records. |
| 2025-Q3 | 819 | 157 | 98.79 | 1.24 | 639 | Kestrel Bioanalytical began contributing; gradient-length normalisation introduced. |
| 2025-Q4 | 883 | 144 | 99.00 | 1.15 | 703 | Provenance classification became a required field. |
| 2026-Q1 | 832 | 149 | 99.08 | 1.24 | 625 | Rule AX-R12 added. Dataset v2 schema published. |
| 2026-Q2 | 1,009 | 187 | 98.90 | 1.13 | 771 | Buyer-sourced sensitivity analysis added to every supplier scorecard. |
| 2026-Q3 | 453 | 73 | 98.92 | 1.18 | 365 | Quarter in progress. Aggregates for this quarter are provisional. |