As of Nov 13, 2026, the XY - Steam Siege · Normal · PSA 10 stands at 136.44, up 36.6% in 30 days (9 constituents).
Top holdings
by weight- Shiftry · PSA 1034.7%
- Ampharos · PSA 1024.1%
- Infernape · PSA 1018.6%
- Bisharp · PSA 109.7%
- Chandelure · PSA 106.4%
Top 5 hold 93.5% of index weight across 9 constituents.
Index value over time
Weekly index level. Pro members can view and export the complete recorded history. Constituents are cap-weighted with the divisor reset on each monthly rebalance.
Constituents
Every atom in the index, cap-weighted and dampened by sales evidence. Follow a card name to drill into the underlying card detail.
- 1Shiftry- Normal · PSA 10 · $14.3K34.7%↓0.3%
- 2Ampharos- Normal · PSA 10 · $9.9K24.1%·0.0%
- 3Infernape- Normal · PSA 10 · $7.7K18.6%·0.0%
- 4Bisharp- Normal · PSA 10 · $4.0K9.7%↓0.9%
- 5Chandelure- Normal · PSA 10 · $2.6K6.4%·0.0%
- 6Azumarill- Normal · PSA 10 · $1.7K4.0%·0.0%
- 7Hydreigon- Normal · PSA 10 · $7671.9%↓1.4%
- 8Deino- Normal · PSA 10 · $1420.3%↓3.1%
- 9Mankey- Normal · PSA 10 · $1120.3%·0.0%
Rebalances
Most recent weekly rebalance events. The divisor is reset on each event so the index level remains continuous through composition changes; subsequent moves are price-driven.
- Nov 7, 2026divisor344→344Δcap0.0%Added (0)NoneRemoved (0)None
- Oct 24, 2026divisor338→338Δcap0.0%Added (0)NoneRemoved (0)None
- Oct 17, 2026divisor118→310Δcap161.4%Added (4)
- shiftry-11-steam-siege-normal
- infernape-20-steam-siege-normal
- bisharp-64-steam-siege-normal
- deino-84-steam-siege-normal
Removed (0)None - Oct 10, 2026divisor108→108Δcap0.0%Added (0)NoneRemoved (0)None
Methodology
Cap-weighted from confidence-scored fair values, rebalanced monthly with continuous divisor accounting.
Read the full methodologyParent set
Cap-weighted, with each constituent dampened by the sales evidence behind its fair value so noisy inputs move the index less. Weekly rebalances with continuous-divisor accounting, so population growth and membership changes never move the level: only price action does. A constituent needs a fair value and a non-zero graded population; sales evidence adjusts its weight rather than gating its inclusion. Per-grade series isolate one tier, composites span PSA 7-10. All values are USD-denominated, base 100 at inception.
Related
Other indices that share this print run or this grade tier, plus the parent set.








