XY - Steam Siege · PSA 10

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XY - Steam Siege · PSA 10 · Inception May 15, 2026 · 36 constituents

As of Nov 13, 2026, the XY - Steam Siege · PSA 10 stands at 172.76, up 3.0% in 30 days (36 constituents).

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Current value

172.76

base 100 at inception

1D-0.8%30D+3.0%ITD+72.8%

Sales evidenceStrong

Constituents

vs 9 at inception

Year on year

26 weekly points

Last rebalance

Nov 7, 2026

Δ 0.0% cap

Divisor

32,384

continuous accounting

Top holdings

by weight

Top 5 hold 74.8% of index weight across 36 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 1036 constituents

Index level

172.8

6M↑72.8%

May 17, 20266M · +72.8% · 26 weeksNov 13, 2026

May 2026100.0 - 217.9Nov 2026

Total cap

$5.59M

Median atom cap

$9.0K

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 36


Gardevoir EX · Secret	PSA10	29.1%	$1.63M	Very strong	+0.1%
M Gardevoir EX · Ultra Rare	PSA10	18.3%	$1.02M	Very strong	-0.0%
Volcanion EX · Secret	PSA10	10.1%	$566.1K	Very strong	-1.7%
Steelix EX · Ultra Rare	PSA10	8.7%	$485.8K	Strong	-3.1%
Gardevoir EX · Ultra Rare	PSA10	8.7%	$485.5K	Strong	+0.3%
M Steelix EX · Ultra Rare	PSA10	7.4%	$412.8K	Very strong	-3.1%
M Gardevoir EX · Ultra Rare	PSA10	5.8%	$327.2K	Strong	-0.0%
Volcanion EX · Ultra Rare	PSA10	4.5%	$251.9K	Strong	-3.2%
M Steelix EX · Ultra Rare	PSA10	2.4%	$134.6K	Strong	+0.2%
Professor Sycamore · Ultra Rare	PSA10	1.0%	$54.6K	Limited	+0.1%
Xerneas BREAK · Ultra Rare	PSA10	0.7%	$39.0K	Limited	-1.5%
Pokémon Ranger · Ultra Rare	PSA10	0.7%	$38.3K	Limited	-0.0%
Azumarill · Reverse Holo	PSA10	0.5%	$27.7K	Limited	0.0%
Bisharp · Cosmos-2017 Knock Out Collection	PSA10	0.4%	$21.0K	Moderate	+0.2%
Clawitzer BREAK · Ultra Rare	PSA10	0.4%	$20.9K	Limited	-0.1%
Shiftry · Normal	PSA10	0.3%	$14.3K	Limited	-0.3%
Yanmega BREAK · Ultra Rare	PSA10	0.2%	$13.3K	Limited	0.0%
Ampharos · Normal	PSA10	0.2%	$9.9K	Sparse	0.0%
Bisharp · Reverse Holo	PSA10	0.1%	$8.1K	Sparse	0.0%
Infernape · Normal	PSA10	0.1%	$7.7K	Sparse	0.0%

Constituents

Top 20 of 36 · 99.5% 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
divisor32,594→32,730Δcap0.0%
Added (0)
None
Removed (0)
None
Oct 24, 2026
divisor32,914→32,993Δcap0.0%
Added (0)
None
Removed (0)
None
Oct 17, 2026
divisor28,803→29,501Δcap2.4%
Added (13)
- 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
divisor25,328→25,345Δcap0.1%
Added (2)
- mankey-52-steam-siege-normal
- hoopa-51-xy-steam-siege-reverse-holo
Removed (0)
None
Oct 3, 2026
divisor24,904→25,484Δcap2.3%
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
divisor24,852→24,852Δcap0.0%
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 · PSA 10 track?

36 XY - Steam Siege cards graded PSA 10, weighted by market cap. It started at 100.00 on 2026-05-15 and stands at 172.76.

How has the XY - Steam Siege · PSA 10 moved?

It is up 3.0% over the past month and up 72.8% year to date.

Which cards carry the most weight in the XY - Steam Siege · PSA 10?

Gardevoir EX (PSA 10) at 29.1%, M Gardevoir EX (PSA 10) at 18.3% and Volcanion EX (PSA 10) at 10.1% of the index.

How is the XY - Steam Siege · PSA 10 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

PSA 10 · Other print runs

Parent set

XY - Steam Siege

Set total cap

$8.0M

XY - Steam Siege · PSA 10

Top holdings

Index value over time

Constituents

Rebalances

Methodology

Parent set

Frequently asked

Related

Other grades · XY - Steam Siege

PSA 10 · Other print runs

Parent set