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Charizard 1st Edition Shadowless PSA 10
Charizard 1st Edition ShadowlessBASPSA 10$400,92211.1%
Aerodactyl ex Holo PSA 10
Aerodactyl ex HoloESSPSA 10$4,0650.0%
Dark Charizard 1st Edition PSA 9
Dark Charizard 1st EditionTROPSA 9$2,5132.2%
Mega Charizard X ex Holo PSA 10
Mega Charizard X ex HoloPHFPSA 10$2,1050.0%
Suicune 1st Edition PSA 9
Suicune 1st EditionNRVPSA 9$1,90521.4%
Charizard Unlimited PSA 8
Charizard UnlimitedBASPSA 8$1,2840.8%
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Blaine's Arcanine 1st EditionGYCPSA 9$1,1556.4%
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Espeon HoloAQPPSA 8$1,1050.1%
Houndoom 1st Edition PSA 8
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Misty's Gyarados 1st EditionGYCPSA 9$8851.9%
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Slowking HoloNEOPSA 9$8774.5%
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Crobat HoloSKRPSA 9$8464.2%
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Snorlax HoloJUNPSA 9$7922.0%
Charmander Holo PSA 10
Charmander HoloMEWPSA 10$6650.2%
Dark Charizard Holo PSA 8
Dark Charizard HoloTROPSA 8$5263.5%
Charmeleon Holo PSA 10
Charmeleon HoloMEWPSA 10$5120.5%
Blaine's Moltres 1st Edition PSA 8
Blaine's Moltres 1st EditionGYHPSA 8$5013.4%
Giovanni's Gyarados Holo PSA 9
Giovanni's Gyarados HoloGYCPSA 9$4200.8%
Sabrina's Alakazam 1st Edition PSA 8
Sabrina's Alakazam 1st EditionGYCPSA 8$4093.7%
Dark Machamp 1st Edition PSA 9
Dark Machamp 1st EditionTROPSA 9$3625.3%
Mew ex Holo PSA 10
Mew ex HoloMEWPSA 10$3292.6%
Meganium Holo PSA 9
Meganium HoloNEOPSA 9$3280.3%
Dragonite Holo PSA 8
Dragonite HoloFOSPSA 8$3083.3%
Machamp 1st Edition Shadowless PSA 9
Machamp 1st Edition ShadowlessBASPSA 9$3046.8%

XY - Steam Siege · PSA 8

Updated 2 days ago
XY - Steam Siege · PSA 8 · Inception May 15, 2026 · 13 constituents
EXPORT CSV
Current value
108.01
base 100 at inception
1D+0.7%30D+3.1%ITD+8.0%
Sales evidenceVery strong
Constituents
13
vs 9 at inception
Year on year
-
20 weekly points
Last rebalance
Sep 26, 2026
Δ 0.0% cap
Divisor
1,682
continuous accounting

Top holdings

by weight

Top 5 hold 83.0% of index weight across 13 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.

XY - Steam Siege · PSA 813 constituents
Index level
108.0
4M↑5.9%
May 17, 20264M · +5.9% · 20 weeksSep 26, 2026
May 2026100.8 - 112.1Sep 2026
Total cap
$181.3K
Median atom cap
$8.5K

Constituents

Every atom in the index, cap-weighted and dampened by sales evidence. Follow a card name to drill into the underlying card detail.

Showing 13 of 13
Constituents
Top 13 of 13 · 100.0% of index weight · cap-weighted
#CardWtLast Δ

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.

  1. Sep 26, 2026
    divisor1,682→1,682Δcap0.0%

    Added (0)
    None
    Removed (0)
    None
  2. Sep 19, 2026
    divisor1,650→1,706Δcap3.4%

    Added (4)
    • yanmega-break-8-steam-siege-holo
    • m-steelix-ex-68-steam-siege-holo
    • volcanion-ex-107-steam-siege-holo
    • pokemon-ranger-113-steam-siege-holo
    Removed (0)
    None
  3. Sep 13, 2026
    divisor1,652→1,658Δcap0.4%

    Added (0)
    None
    Removed (0)
    None
  4. Sep 5, 2026
    divisor1,652→1,652Δcap0.0%

    Added (0)
    None
    Removed (0)
    None
  5. Aug 29, 2026
    divisor1,653→1,648Δcap0.3%

    Added (0)
    None
    Removed (0)
    None
  6. Aug 22, 2026
    divisor1,645→1,635Δcap0.6%

    Added (0)
    None
    Removed (0)
    None

Methodology

Cap-weighted from confidence-scored fair values, rebalanced monthly with continuous divisor accounting.

Read the full methodology

Parent set

XY - Steam SiegeSet total cap$4.87M

Frequently asked

What does the XY - Steam Siege · PSA 8 track?
13 XY - Steam Siege cards graded PSA 8, weighted by market cap. It started at 100.00 on 2026-05-15 and stands at 108.01.
How has the XY - Steam Siege · PSA 8 moved?
It is up 3.1% over the past month and up 8.0% year to date.
Which cards carry the most weight in the XY - Steam Siege · PSA 8?
Gardevoir EX (PSA 8) at 40.2%, M Gardevoir EX (PSA 8) at 19.6% and Volcanion EX (PSA 8) at 9.0% of the index.
How is the XY - Steam Siege · PSA 8 calculated?
The level is the constituents' combined market cap (fair value times graded population) divided by a divisor, with each card's weight dampened by the confidence of its fair value. The index rebalances weekly and the divisor absorbs every membership and population change, so only prices move the level. Values are recomputed daily from graded sales.

Related

Other indices that share this print run or this grade tier, plus the parent set.

Other grades · XY - Steam Siege

PSA 8 · Other print runs

Parent set

XY - Steam Siege
Set total cap
$4.9M