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Charizard 1st Edition Shadowless PSA 10
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Meganium HoloNEOPSA 9$3280.3%
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Machamp 1st Edition Shadowless PSA 9
Machamp 1st Edition ShadowlessBASPSA 9$3046.8%

XY - Steam Siege · Secret · Composite

Updated 2 days ago
XY - Steam Siege · Secret · Composite · Inception May 15, 2026 · 8 constituents
EXPORT CSV
Current value
153.55
base 100 at inception
1D+2.6%30D+15.3%ITD+53.5%
Sales evidenceVery strong
Constituents
8
vs 8 at inception
Year on year
-
20 weekly points
Last rebalance
Sep 26, 2026
Δ 0.0% cap
Divisor
15,294
continuous accounting

Top holdings

by weight

Top 5 hold 97.7% of index weight across 8 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 · Secret · Composite8 constituents
Index level
153.5
4M↑53.7%
May 17, 20264M · +53.7% · 20 weeksSep 26, 2026
May 202699.9 - 154.1Sep 2026
Total cap
$2.35M
Median atom cap
$69.1K

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 8 of 8
Constituents
Top 8 of 8 · 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
    divisor15,294→15,294Δcap0.0%

    Added (0)
    None
    Removed (0)
    None
  2. Sep 19, 2026
    divisor15,346→15,345Δcap0.0%

    Added (0)
    None
    Removed (0)
    None
  3. Sep 13, 2026
    divisor15,235→15,274Δcap0.3%

    Added (0)
    None
    Removed (0)
    None
  4. Sep 5, 2026
    divisor15,235→15,235Δcap0.0%

    Added (0)
    None
    Removed (0)
    None
  5. Aug 29, 2026
    divisor15,251→15,190Δcap0.4%

    Added (0)
    None
    Removed (0)
    None
  6. Aug 22, 2026
    divisor15,121→15,109Δcap0.1%

    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$4.88M

Frequently asked

What does the XY - Steam Siege · Secret · Composite track?
8 XY - Steam Siege Secret cards graded PSA 7 to PSA 10, weighted by market cap. It started at 100.00 on 2026-05-15 and stands at 153.55.
How has the XY - Steam Siege · Secret · Composite moved?
It is up 15.3% over the past month and up 53.5% year to date.
Which cards carry the most weight in the XY - Steam Siege · Secret · Composite?
Gardevoir EX (PSA 10) at 61.4%, Volcanion EX (PSA 10) at 18.6% and Gardevoir EX (PSA 9) at 11.8% of the index.
How is the XY - Steam Siege · Secret · Composite 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 · Secret

Composite · Other print runs

Parent set

XY - Steam Siege
Set total cap
$4.9M