XY - Steam Siege · Composite

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XY - Steam Siege · Composite · Inception May 15, 2026 · 135 constituents

As of Nov 13, 2026, the XY - Steam Siege · Composite stands at 167.67, up 7.9% in 30 days (135 constituents).

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Current value

167.67

base 100 at inception

1D-0.6%30D+7.9%ITD+67.7%

Sales evidenceVery strong

Constituents

135

vs 35 at inception

Year on year

26 weekly points

Last rebalance

Nov 7, 2026

Δ 0.0% cap

Divisor

42,473

continuous accounting

Top holdings

by weight

Top 5 hold 58.8% of index weight across 135 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 · Composite135 constituents

Index level

167.7

6M↑67.6%

May 17, 20266M · +67.6% · 26 weeksNov 13, 2026

May 2026100.1 - 201.6Nov 2026

Total cap

$7.12M

Median atom cap

$1.5K

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 20 of 135


Gardevoir EX · Secret	PSA10	22.8%	$1.63M	Very strong	+0.1%
M Gardevoir EX · Ultra Rare	PSA10	14.4%	$1.02M	Very strong	-0.0%
Volcanion EX · Secret	PSA10	7.9%	$566.1K	Very strong	-1.7%
Steelix EX · Ultra Rare	PSA10	6.8%	$485.8K	Strong	-3.1%
Gardevoir EX · Ultra Rare	PSA10	6.8%	$485.5K	Strong	+0.3%
Gardevoir EX · Secret	PSA9	6.7%	$475.1K	Very strong	+0.7%
M Steelix EX · Ultra Rare	PSA10	5.8%	$412.8K	Very strong	-3.1%
M Gardevoir EX · Ultra Rare	PSA10	4.6%	$327.2K	Strong	-0.0%
Volcanion EX · Ultra Rare	PSA10	3.5%	$251.9K	Strong	-3.2%
M Gardevoir EX · Ultra Rare	PSA9	2.5%	$175.5K	Very strong	0.0%
M Steelix EX · Ultra Rare	PSA10	1.9%	$134.6K	Strong	+0.2%
Steelix EX · Ultra Rare	PSA9	1.7%	$122.4K	Very strong	-1.3%
Gardevoir EX · Secret	PSA8	1.6%	$114.1K	Very strong	-0.6%
Volcanion EX · Secret	PSA9	1.3%	$91.6K	Very strong	-0.6%
M Steelix EX · Ultra Rare	PSA9	0.9%	$66.9K	Very strong	-0.5%
Gardevoir EX · Ultra Rare	PSA9	0.8%	$57.6K	Moderate	+0.0%
Professor Sycamore · Ultra Rare	PSA10	0.8%	$54.6K	Limited	+0.1%
Gardevoir EX · Secret	PSA7	0.6%	$42.5K	Very strong	-0.6%
Volcanion EX · Ultra Rare	PSA9	0.6%	$42.2K	Very strong	-0.2%
M Gardevoir EX · Ultra Rare	PSA9	0.6%	$41.3K	Very strong	+0.0%

Constituents

Top 20 of 135 · 92.6% 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.

Nov 7, 2026
divisor42,651→42,766Δcap0.0%
Added (0)
None
Removed (0)
None
Oct 24, 2026
divisor43,047→43,078Δcap0.0%
Added (0)
None
Removed (0)
None
Oct 17, 2026
divisor37,763→38,714Δcap2.5%
Added (14)
- yanmega-7-steam-siege-normal
- shiftry-11-steam-siege-normal
- infernape-20-steam-siege-normal
- bisharp-64-steam-siege-normal
- xerneas-break-82-steam-siege-holo
- deino-84-steam-siege-normal
- professor-sycamore-114-steam-siege-holo
- 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-cosmos-2017-knock-out-collection
- bisharp-64-xy-steam-siege-reverse-holo
- shiftry-11-xy-steam-siege-cosmos-2017-knock-out-collection
- tangela-1-xy-steam-siege-reverse-holo
Removed (0)
None
Oct 10, 2026
divisor33,619→33,643Δcap0.1%
Added (2)
- mankey-52-steam-siege-normal
- hoopa-51-xy-steam-siege-reverse-holo
Removed (0)
None
Oct 3, 2026
divisor33,002→33,761Δcap2.3%
Added (8)
- clawitzer-break-35-steam-siege-holo
- ampharos-40-steam-siege-normal
- chandelure-50-steam-siege-normal
- hydreigon-86-steam-siege-normal
- bastiodon-70-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
Sep 26, 2026
divisor32,952→32,952Δcap0.0%
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$8.04M

Frequently asked

What does the XY - Steam Siege · Composite track?

135 XY - Steam Siege cards graded PSA 7 to PSA 10, weighted by market cap. It started at 100.00 on 2026-05-15 and stands at 167.67.

How has the XY - Steam Siege · Composite moved?

It is up 7.9% over the past month and up 67.7% year to date.

Which cards carry the most weight in the XY - Steam Siege · Composite?

Gardevoir EX (PSA 10) at 22.8%, M Gardevoir EX (PSA 10) at 14.4% and Volcanion EX (PSA 10) at 7.9% of the index.

How is the XY - Steam Siege · 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.

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

Other grades · XY - Steam Siege

Composite · Other print runs

Parent set

XY - Steam Siege

Set total cap

$8.0M

XY - Steam Siege · Composite

Top holdings

Index value over time

Constituents

Rebalances

Methodology

Parent set

Frequently asked

Related

Other grades · XY - Steam Siege

Composite · Other print runs

Parent set