As of Nov 14, 2026, the XY - Steam Siege · PSA 7 stands at 147.10, up 17.1% in 30 days (30 constituents).
Top holdings
by weight- Gardevoir EX · PSA 744.1%
- M Gardevoir EX · PSA 720.7%
- M Gardevoir EX · PSA 76.8%
- Volcanion EX · PSA 76.6%
- Steelix EX · PSA 76.2%
Top 5 hold 84.4% of index weight across 30 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.
- 1Gardevoir EX- Secret · PSA 7 · $42.2K44.1%↓0.6%
- 2M Gardevoir EX- Ultra Rare · PSA 7 · $19.8K20.7%↓0.6%
- 3M Gardevoir EX- Ultra Rare · PSA 7 · $6.5K6.8%↓0.7%
- 4Volcanion EX- Secret · PSA 7 · $6.3K6.6%↓0.7%
- 5Steelix EX- Ultra Rare · PSA 7 · $6.0K6.2%↑5.1%
- 6Gardevoir EX- Ultra Rare · PSA 7 · $5.0K5.2%↓0.9%
- 7M Steelix EX- Ultra Rare · PSA 7 · $3.4K3.5%↑0.1%
- 8Volcanion EX- Ultra Rare · PSA 7 · $1.8K1.9%↓0.1%
- 9M Steelix EX- Ultra Rare · PSA 7 · $1.5K1.6%↑0.2%
- 10Pokémon Ranger- Ultra Rare · PSA 7 · $6750.7%·0.0%
- 11Professor Sycamore- Ultra Rare · PSA 7 · $6390.7%·0.0%
- 12Ampharos- Normal · PSA 7 · $4630.5%↓0.1%
- 13Azumarill- Reverse Holo · PSA 7 · $3740.4%·0.0%
- 14Bisharp- Cosmos-2017 Knock Out Collection · PSA 7 · $2190.2%·0.0%
- 15Clawitzer BREAK- Ultra Rare · PSA 7 · $1690.2%↑210.2%
- 16Bisharp- Normal · PSA 7 · $1170.1%↑0.3%
- 17Infernape- Normal · PSA 7 · $1150.1%↑0.6%
- 18Shiftry-Holo Cosmos-2017 Knock Out Collection - Cosmos-2017 Knock Out Collection · PSA 7 · $790.1%·0.0%
- 19Shiftry- Normal · PSA 7 · $700.1%↑0.5%
- 20Azumarill- Normal · PSA 7 · $600.1%↓20.6%
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, 2026divisor654→656Δcap0.7%Added (1)
- volcarona-15-xy-steam-siege-reverse-holo
Removed (0)None - Nov 7, 2026divisor663→663Δcap0.0%Added (0)NoneRemoved (0)None
- Oct 24, 2026divisor664→664Δcap0.0%Added (0)NoneRemoved (0)None
- Oct 17, 2026divisor640→649Δcap1.4%Added (10)
- shiftry-11-steam-siege-normal
- infernape-20-steam-siege-normal
- bisharp-64-steam-siege-normal
- xerneas-break-82-steam-siege-holo
- professor-sycamore-114-steam-siege-holo
- bergmite-36-xy-steam-siege-reverse-holo
- primeape-53-xy-steam-siege-reverse-holo
- bisharp-64-xy-steam-siege-cosmos-2017-knock-out-collection
- bisharp-64-xy-steam-siege-reverse-holo
- shiftry-11-xy-steam-siege-cosmos-2017-knock-out-collection
Removed (0)None - Oct 10, 2026divisor603→603Δcap0.0%Added (1)
- hoopa-51-xy-steam-siege-reverse-holo
Removed (0)None - Oct 3, 2026divisor585→601Δcap2.8%Added (6)
- clawitzer-break-35-steam-siege-holo
- ampharos-40-steam-siege-normal
- chandelure-50-steam-siege-normal
- hydreigon-86-steam-siege-normal
- hydreigon-86-xy-steam-siege-reverse-holo
- gardevoir-spirit-link-101-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.



















