Sun & Moon - Unified Minds · Secret

Keldeo GX #240, Secret, Sun & Moon - Unified Minds

Card number: #240/236
Rarity: Secret Rare
Finish: Holo

Sun & Moon - Unified Minds SecretUNM240:EN

TKRUNM240:EN-P10

Grading toolPro

TCGBerg fair value· PSA 10

$399

Our estimate of this card's fair value, calculated from recorded sales.

Sales evidenceModerate

30D performance

30D: -
YTD: -
Market cap: $48.7K
Volatility: 8.7%

Last sale (Sep 20, 2026)Last sale

$450

PSA 10 · Sep 20, 2026

12.7% above TCGBerg fair value

5-sale avg

$350

last 5 sales

Population · PSA 10

122

graded copies

TCGBerg fair value · PSA 10

$399

Sales evidenceModerate

Market cap

$48.7K

fair value x population

Population

122

graded copies

Last sale

$450

+12.7% vs fair

5-sale avg

$350

recent sales

GradingPro

Price history

Open terminalPro

Weekly fair value for PSA 10. Shaded area is the confidence band: how precisely we can pin the value; it tightens as more sales confirm it. Dots are individual sales.

TCGBerg fair value · PSA 10Sale below fairSale above fairOutlier

Sep 6, 20264 weekly points · 12 salesSep 27, 2026

Behind the scenes

What goes into this price, and how much we know.

Recent sales10 tracked

Most recent transactions. From public auction comps and dealer reporting. Showing 10 of 10; delta vs fair value is the difference between the sale price and the grade's quoted fair value on that date.

Date	Grade	Price	Source	vs TCGBerg FV
Sep 21, 2026	Raw	$23	tcgplayer	8.5%
Sep 20, 2026	PSA10	$450	ebay	15.2%
Aug 29, 2026	Raw	$22	tcgplayer	20.4%
Aug 25, 2026	PSA8	$14	ebay	27.3%
Aug 22, 2026	PSA10	$325	ebay	9.4%
Aug 11, 2026	Raw	$22	tcgplayer	21.0%
Aug 7, 2026	PSA8	$21	ebay	10.4%
Aug 7, 2026	Raw	$32	tcgplayer	11.9%
Jul 31, 2026	Raw	$32	tcgplayer	11.9%
Jul 15, 2026	PSA6	$17	ebay	15.1%

$23
Sep 21, 2026 · via tcgplayer
Rawversus fair value, down 8.5%
$450
Sep 20, 2026 · via ebay
PSA10versus fair value, up 15.2%
$22
Aug 29, 2026 · via tcgplayer
Rawversus fair value, down 20.4%
$14
Aug 25, 2026 · via ebay
PSA8versus fair value, down 27.3%
$325
Aug 22, 2026 · via ebay
PSA10versus fair value, down 9.4%
$22
Aug 11, 2026 · via tcgplayer
Rawversus fair value, down 21.0%
$21
Aug 7, 2026 · via ebay
PSA8versus fair value, up 10.4%
$32
Aug 7, 2026 · via tcgplayer
Rawversus fair value, up 11.9%
$32
Jul 31, 2026 · via tcgplayer
Rawversus fair value, up 11.9%
$17
Jul 15, 2026 · via ebay
PSA6versus fair value, up 15.1%

All grades matrix

Every grade we track for this printing. Click any column header to sort; the rightmost column jumps you to listings for that grade.

PSA10$399
1d 0.2%7d 2.2%30d -
Pop
122
Mcap
$48.7K
Evidence
Moderate
Last
$450
PSA9$41
1d 0.6%7d 0.5%30d -
Pop
91
Mcap
$3.7K
Evidence
Limited
Last
$40
PSA8$19
1d 0.0%7d 1.3%30d -
Pop
47
Mcap
$915
Evidence
Moderate
Last
$14


PSA10	$399	122	$48.7K	0.2%	2.2%	-	-	-	Moderate	$4501w ago
PSA9	$41	91	$3.7K	0.6%	0.5%	-	-	-	Limited	$409mo ago
PSA8	$19	47	$915	0.0%	1.3%	-	-	-	Moderate	$141mo ago
PSA7	$14	9	$127	0.0%	0.0%	-	-	-	Sparse	$127mo ago
PSA6	$13	2	$26	0.0%	0.0%	-	-	-	Sparse	$173mo ago
Raw	$25	-	-	-	5.0%	12.2%	-	-	Very strong	$231w ago

TCGBerg fair value by grade

Value at each grade and ungraded condition, on a log scale that spans the full range from raw (Damaged) at $9.66 up to gem-mint at $399. Log scale. Tap a row to switch the whole page.

Raw NM$25Ungraded · TCGBerg fair value
Raw LP$18Ungraded · TCGBerg fair value
Raw MP$12Ungraded · market price
Raw HP$12Ungraded · market price
Raw Damaged$9.66Ungraded · market price

hatched = market price, not a TCGBerg fair value

Population & rarity

271 graded copies of Keldeo GX Secret across 5 grades. The selected grade is highlighted.

PSA 10

122 · 45%

PSA 9

91 · 34%

PSA 8

47 · 17%

PSA 7

9 · 3.3%

PSA 6

2 · 0.7%

PSA 10 makes up 45% of graded copies: 122 of 271. It’s the most common grade for this card.

Relative valuation vs. index

How PSA 10 has moved relative to Sun & Moon - Unified Minds · Secret · Composite since Aug 2, 2026. Both indexed to 100 at the index’s inception. Card outperformed by 18.1 pp.

About Sun & Moon - Unified MindsParent set

This printing in the context of its parent set: total set cap and this printing's share of it.

Browse all sets →

Set total cap

$34.54M

across all printings

This printing's share

0.2%

of total set cap

Implied printing cap

$53.5K

share × set cap

Browse all sets →

Keldeo GX - Secret at PSA 10 carries a TCGBerg fair value of $399 as of 2026-09-27. We track a TCGBerg fair value across 5 grades from Sun & Moon - Unified Minds, from PSA 6 up to PSA 10. A graded population of 122 copies sits behind the PSA 10 grade. The PSA 10 valuation rests on moderate sales evidence.

Show more analysisAnalysis, commentary & FAQ

PSA 10 commentary

The TCGBerg fair value of a PSA 10 Keldeo GX - Secret is $399 as of 2026-09-27. 122 copies have been graded at this level. This valuation rests on moderate sales evidence. The most recent recorded sale was $450 on 2026-09-20.

PSA 10 - frequently asked

What is the TCGBerg fair value of a PSA 10 Keldeo GX - Secret?

$399 as of 2026-09-27, our model-derived fair value for a PSA 10 Keldeo GX - Secret based on recent graded sales.

How rare is a PSA 10 Keldeo GX - Secret?

122 copies have been graded at PSA 10, the graded population behind this atom.

Frequently asked

What is the TCGBerg fair value of a PSA 10 Keldeo GX - Secret?: $399 as of 2026-09-27, our model-derived fair value for a PSA 10 Keldeo GX - Secret based on recent graded sales.
How rare is a PSA 10 Keldeo GX - Secret?: 122 copies have been graded at PSA 10, the graded population behind this atom.

PSA 9 commentary

The TCGBerg fair value of a PSA 9 Keldeo GX - Secret is $41 as of 2026-09-27. 91 copies have been graded at this level. This valuation rests on limited sales evidence. The most recent recorded sale was $40 on 2026-01-07.

PSA 9 - frequently asked

What is the TCGBerg fair value of a PSA 9 Keldeo GX - Secret?

$41 as of 2026-09-27, our model-derived fair value for a PSA 9 Keldeo GX - Secret based on recent graded sales.

How rare is a PSA 9 Keldeo GX - Secret?

91 copies have been graded at PSA 9, the graded population behind this atom.

Frequently asked

What is the TCGBerg fair value of a PSA 9 Keldeo GX - Secret?: $41 as of 2026-09-27, our model-derived fair value for a PSA 9 Keldeo GX - Secret based on recent graded sales.
How rare is a PSA 9 Keldeo GX - Secret?: 91 copies have been graded at PSA 9, the graded population behind this atom.

PSA 8 commentary

The TCGBerg fair value of a PSA 8 Keldeo GX - Secret is $19 as of 2026-09-27. 47 copies have been graded at this level. This valuation rests on moderate sales evidence. The most recent recorded sale was $14 on 2026-08-25.

PSA 8 - frequently asked

What is the TCGBerg fair value of a PSA 8 Keldeo GX - Secret?

$19 as of 2026-09-27, our model-derived fair value for a PSA 8 Keldeo GX - Secret based on recent graded sales.

How rare is a PSA 8 Keldeo GX - Secret?

47 copies have been graded at PSA 8, the graded population behind this atom.

Frequently asked

What is the TCGBerg fair value of a PSA 8 Keldeo GX - Secret?: $19 as of 2026-09-27, our model-derived fair value for a PSA 8 Keldeo GX - Secret based on recent graded sales.
How rare is a PSA 8 Keldeo GX - Secret?: 47 copies have been graded at PSA 8, the graded population behind this atom.

PSA 7 commentary

The TCGBerg fair value of a PSA 7 Keldeo GX - Secret is $14 as of 2026-09-27. 9 copies have been graded at this level. This valuation rests on sparse sales evidence. The most recent recorded sale was $12 on 2026-02-21.

PSA 7 - frequently asked

What is the TCGBerg fair value of a PSA 7 Keldeo GX - Secret?

$14 as of 2026-09-27, our model-derived fair value for a PSA 7 Keldeo GX - Secret based on recent graded sales.

How rare is a PSA 7 Keldeo GX - Secret?

9 copies have been graded at PSA 7, the graded population behind this atom.

Frequently asked

What is the TCGBerg fair value of a PSA 7 Keldeo GX - Secret?: $14 as of 2026-09-27, our model-derived fair value for a PSA 7 Keldeo GX - Secret based on recent graded sales.
How rare is a PSA 7 Keldeo GX - Secret?: 9 copies have been graded at PSA 7, the graded population behind this atom.

PSA 6 commentary

The TCGBerg fair value of a PSA 6 Keldeo GX - Secret is $13 as of 2026-09-27. 2 copies have been graded at this level. This valuation rests on sparse sales evidence. The most recent recorded sale was $16 on 2026-07-15.

PSA 6 - frequently asked

What is the TCGBerg fair value of a PSA 6 Keldeo GX - Secret?

$13 as of 2026-09-27, our model-derived fair value for a PSA 6 Keldeo GX - Secret based on recent graded sales.

How rare is a PSA 6 Keldeo GX - Secret?

2 copies have been graded at PSA 6, the graded population behind this atom.

Frequently asked

What is the TCGBerg fair value of a PSA 6 Keldeo GX - Secret?: $13 as of 2026-09-27, our model-derived fair value for a PSA 6 Keldeo GX - Secret based on recent graded sales.
How rare is a PSA 6 Keldeo GX - Secret?: 2 copies have been graded at PSA 6, the graded population behind this atom.

Every printing of Keldeo GX and the indices that include this card in their constituent basket.

Indices containing this card

Parent set

Sun & Moon - Unified Minds

Set total cap

$34.39M

Date

Grade

Price

Source

vs TCGBerg FV

Sep 21, 2026

Raw

$23

tcgplayer

8.5%

Sep 20, 2026

PSA10

$450

ebay

15.2%

Aug 29, 2026

Raw

$22

tcgplayer

20.4%

Aug 25, 2026

PSA8

$14

ebay

27.3%

Aug 22, 2026

PSA10

$325

ebay

9.4%

Aug 11, 2026

Raw

$22

tcgplayer

21.0%

Aug 7, 2026

PSA8

$21

ebay

10.4%

Aug 7, 2026

Raw

$32

tcgplayer

11.9%

Jul 31, 2026

Raw

$32

tcgplayer

11.9%

Jul 15, 2026

PSA6

$17

ebay

15.1%

PSA10

$399

122

$48.7K

0.2%

2.2%

Moderate

$4501w ago

PSA9

$41

$3.7K

0.6%

0.5%

Limited

$409mo ago

PSA8

$19

$915

0.0%

1.3%

Moderate

$141mo ago

PSA7

$14

$127

0.0%

Sparse

$127mo ago

PSA6

$13

$26

0.0%

Sparse

$173mo ago

Raw

$25

5.0%

12.2%

Very strong

$231w ago

Keldeo GX #240, Secret, Sun & Moon - Unified Minds

Behind the scenesHow the published fair value for this grade was produced: the estimates that fed it, their share of the starting mix, and every recorded change afterwards. It describes one saved calculation, not a live recomputation.

Recent sales10 tracked

All grades matrix

Population & rarityHow Keldeo GX's graded copies are spread across grades. Each bar is the number of copies graded at that grade; the percentage is that grade's share of the total graded population. Fewer copies at a grade = scarcer = a scarcity premium.

Relative valuation vs. indexBoth series are indexed to 100 at Aug 2, 2026, the index’s inception date, not the start of the selected range. A divergence means the card has outperformed or underperformed the index since then, by exactly the percentage-point gap.

About Sun & Moon - Unified MindsParent set

Analysis

PSA 10 commentary

PSA 10 - frequently asked

PSA 9 commentary

PSA 9 - frequently asked

PSA 8 commentary

PSA 8 - frequently asked

PSA 7 commentary

PSA 7 - frequently asked

PSA 6 commentary

PSA 6 - frequently asked

Related

Indices containing this card

Parent set

Behind the scenesHow the published fair value for this grade was produced: the estimates that fed it, their share of the starting mix, and every recorded change afterwards. It describes one saved calculation, not a live recomputation.

Recent sales10 tracked

All grades matrix

Population & rarityHow Keldeo GX's graded copies are spread across grades. Each bar is the number of copies graded at that grade; the percentage is that grade's share of the total graded population. Fewer copies at a grade = scarcer = a scarcity premium.

Relative valuation vs. indexBoth series are indexed to 100 at Aug 2, 2026, the index’s inception date, not the start of the selected range. A divergence means the card has outperformed or underperformed the index since then, by exactly the percentage-point gap.

About Sun & Moon - Unified MindsParent set

Analysis

PSA 10 commentary

PSA 10 - frequently asked

PSA 9 commentary

PSA 9 - frequently asked

PSA 8 commentary

PSA 8 - frequently asked

PSA 7 commentary

PSA 7 - frequently asked

PSA 6 commentary

PSA 6 - frequently asked

Related

Indices containing this card

Parent set

Behind the scenes

Population & rarity

Relative valuation vs. index

Behind the scenes

Population & rarity

Relative valuation vs. index