How This Index Works
This benchmark tracks the 100 highest-priced Pokemon cards by market value from selected Diamond & Pearl/HGSS era sets. We use a divisor-adjusted method to keep the series continuous when constituents rotate. Each daily run:
- Collect all eligible cards from the included sets below
- Sort cards by latest market price (highest to lowest)
- Keep the top 100 constituents for that day
- Compute two outputs: Index Level (normalized points) and Aggregate Value (raw dollar total)
- Measure membership turnover and, when turnover exceeds 10%, apply a divisor rebalance
- Preserve continuity across reconstitution events (for example new sets or major meta shifts)
Performance Views:
Index Level (default) - A normalized series that starts at 1000 points. Use this view to compare relative performance over time without overreacting to constituent swaps.
Aggregate Value - The raw dollar sum of the current top-100 basket. This is the direct market-value view and will usually react more sharply when composition changes.
Reconstitution: Higher-priced cards carry more weight. Constituents can enter or leave daily as prices move. When turnover crosses 10% (often around new releases or major repricings), the divisor is recalibrated so the index line does not jump for mechanical reasons. Between rebalances, movement is driven by card pricing. Sealed products (booster boxes, ETBs) are excluded.