As of Nov 14, 2026, the XY - Steam Siege · Reverse Holo · PSA 9 stands at 315.06, up 207.9% in 30 days (11 constituents).
Top holdings
by weight- Azumarill · PSA 993.9%
- Bisharp · PSA 91.5%
- Hydreigon · PSA 91.3%
- Tangela · PSA 91.0%
- Gardevoir Spirit Link · PSA 91.0%
Top 5 hold 98.7% of index weight across 11 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.
- 1Azumarill- Reverse Holo · PSA 9 · $28.9K93.9%↓0.8%
- 2Bisharp- Reverse Holo · PSA 9 · $4661.5%↓0.3%
- 3Hydreigon- Reverse Holo · PSA 9 · $4041.3%↑0.2%
- 4Tangela- Reverse Holo · PSA 9 · $3131.0%↑0.7%
- 5Gardevoir Spirit Link- Reverse Holo · PSA 9 · $2981.0%↑0.3%
- 6Primeape- Reverse Holo · PSA 9 · $1430.5%↑0.8%
- 7Bastiodon- Reverse Holo · PSA 9 · $1010.3%↑0.2%
- 8Hoopa- Reverse Holo · PSA 9 · $920.3%↑2.1%
- 9Mankey- Reverse Holo · PSA 9 · $470.2%↑1.0%
- 10Bergmite- Reverse Holo · PSA 9 · $150.0%↑1.0%
- 11Nuzleaf- Reverse Holo · PSA 9 · $80.0%↓32.2%
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 14, 2026divisor99→116Δcap17.8%Added (1)
- volcarona-15-xy-steam-siege-reverse-holo
Removed (0)None - Nov 7, 2026divisor95→95Δcap0.0%Added (0)NoneRemoved (0)None
- Oct 24, 2026divisor97→96Δcap0.0%Added (0)NoneRemoved (0)None
- Oct 17, 2026divisor75→82Δcap8.3%Added (5)
- bergmite-36-xy-steam-siege-reverse-holo
- mankey-52-xy-steam-siege-reverse-holo
- primeape-53-xy-steam-siege-reverse-holo
- bisharp-64-xy-steam-siege-reverse-holo
- tangela-1-xy-steam-siege-reverse-holo
Removed (0)None - Oct 10, 2026divisor76→82Δcap8.1%Added (1)
- hoopa-51-xy-steam-siege-reverse-holo
Removed (0)None - Oct 3, 2026divisor-→77Δcap-Added (5)
- bastiodon-70-xy-steam-siege-reverse-holo
- azumarill-77-xy-steam-siege-reverse-holo
- hydreigon-86-xy-steam-siege-reverse-holo
- gardevoir-spirit-link-101-xy-steam-siege-reverse-holo
- nuzleaf-10-xy-steam-siege-reverse-holo
Removed (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.










