Charizard 1st Edition ShadowlessBASPSA 10$400,92211.1%

Aerodactyl ex HoloESSPSA 10$4,0650.0%

Dark Charizard 1st EditionTROPSA 9$2,5132.2%

Mega Charizard X ex HoloPHFPSA 10$2,1050.0%

Suicune 1st EditionNRVPSA 9$1,90521.4%

Charizard UnlimitedBASPSA 8$1,2840.8%

Blaine's Arcanine 1st EditionGYCPSA 9$1,1556.4%

Espeon HoloAQPPSA 8$1,1050.1%

Houndoom 1st EditionNRVPSA 8$1,04222.1%

Misty's Gyarados 1st EditionGYCPSA 9$8851.9%

Slowking HoloNEOPSA 9$8774.5%

Crobat HoloSKRPSA 9$8464.2%

Snorlax HoloJUNPSA 9$7922.0%

Charmander HoloMEWPSA 10$6650.2%

Dark Charizard HoloTROPSA 8$5263.5%

Charmeleon HoloMEWPSA 10$5120.5%

Blaine's Moltres 1st EditionGYHPSA 8$5013.4%

Giovanni's Gyarados HoloGYCPSA 9$4200.8%

Sabrina's Alakazam 1st EditionGYCPSA 8$4093.7%

Dark Machamp 1st EditionTROPSA 9$3625.3%

Mew ex HoloMEWPSA 10$3292.6%

Meganium HoloNEOPSA 9$3280.3%

Dragonite HoloFOSPSA 8$3083.3%

Machamp 1st Edition ShadowlessBASPSA 9$3046.8%

Shining Legends · Secret

Mewtwo GX #78, Secret, Shining Legends

Shining Legends SecretSLG78:EN

TKRSLG78:EN-P10

TCGBerg fair value· PSA 10

$9,284

Our estimate of a fair value of this card based on our proprietary pricing algorithm and recent verified sales.

Data quality excellent97/100

30D performance0.6%

30D↑ 0.6%

YTD↑ 152.1%

MCAP$25.49M

VOL0.5%

Last sale (Jul 28, 2026)Last sale

$9,350

PSA 10 · Jul 28, 2026

0.7% above TCGBerg fair value

5-sale avg

$9,218

last 5 sales

Population · PSA 10

2,746

graded copies

TCGBerg fair value · PSA 10

$9,284

30D0.6%YTD152.1%

Data quality excellent97/100

Market cap

$25.49M

fair value x population

Population

2,746

graded copies

Last sale

$9,350

+0.7% vs fair

5-sale avg

$9,218

recent sales

Price history

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

Aug 10, 202552 weekly points · 310 salesAug 2, 2026

Shining Legends · Secret

Mewtwo GX #78, Secret, Shining Legends

Shining Legends SecretSLG78:EN

TKRSLG78:EN-P10

TCGBerg fair value· PSA 10

$9,284

Our estimate of a fair value of this card based on our proprietary pricing algorithm and recent verified sales.

Data quality excellent97/100

30D performance0.6%

30D↑ 0.6%

YTD↑ 152.1%

MCAP$25.49M

VOL0.5%

Last sale (Jul 28, 2026)Last sale

$9,350

PSA 10 · Jul 28, 2026

0.7% above TCGBerg fair value

5-sale avg

$9,218

last 5 sales

Population · PSA 10

2,746

graded copies

TCGBerg fair value · PSA 10

$9,284

30D0.6%YTD152.1%

Data quality excellent97/100

Market cap

$25.49M

fair value x population

Population

2,746

graded copies

Last sale

$9,350

+0.7% vs fair

5-sale avg

$9,218

recent sales

Price history

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

Aug 10, 202552 weekly points · 310 salesAug 2, 2026

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
Jul 28, 2026	PSA10	$9,350	ebay	0.7%
Jul 28, 2026	PSA10	$9,250	ebay	0.4%
Jul 28, 2026	PSA10	$9,790	ebay	5.4%
Jul 26, 2026	PSA10	$9,500	ebay	3.3%
Jul 24, 2026	PSA10	$8,200	ebay	10.9%
Jul 24, 2026	PSA10	$9,300	ebay	1.1%
Jul 23, 2026	PSA10	$9,000	ebay	2.2%
Jul 21, 2026	PSA10	$8,700	ebay	5.4%
Jul 20, 2026	PSA10	$8,100	fanatics_collect	12.0%
Jul 20, 2026	PSA10	$9,400	ebay	2.2%

$9,350
Jul 28, 2026 · via ebay
PSA 10versus fair value, up 0.7%
$9,250
Jul 28, 2026 · via ebay
PSA 10versus fair value, down 0.4%
$9,790
Jul 28, 2026 · via ebay
PSA 10versus fair value, up 5.4%
$9,500
Jul 26, 2026 · via ebay
PSA 10versus fair value, up 3.3%
$8,200
Jul 24, 2026 · via ebay
PSA 10versus fair value, down 10.9%
$9,300
Jul 24, 2026 · via ebay
PSA 10versus fair value, up 1.1%
$9,000
Jul 23, 2026 · via ebay
PSA 10versus fair value, down 2.2%
$8,700
Jul 21, 2026 · via ebay
PSA 10versus fair value, down 5.4%
$8,100
Jul 20, 2026 · via fanatics_collect
PSA 10versus fair value, down 12.0%
$9,400
Jul 20, 2026 · via ebay
PSA 10versus fair value, up 2.2%

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$9,284
1d 0.1%7d 0.8%30d 0.6%
Pop
2,746
Mcap
$25.49M
Conf
97
Last
$9,350
PSA9$1,713
1d 0.0%7d 1.5%30d 4.6%
Pop
6,819
Mcap
$11.68M
Conf
97
Last
$1,899
PSA8$880
1d 0.4%7d 0.7%30d 3.8%
Pop
4,833
Mcap
$4.25M
Conf
97
Last
$860


PSA10	$9,284	2,746	$25.49M	0.1%	0.8%	0.6%	23.4%	-	97	$9,3502w ago
PSA9	$1,713	6,819	$11.68M	0.0%	1.5%	4.6%	23.2%	-	97	$1,8992w ago
PSA8	$880	4,833	$4.25M	0.4%	0.7%	3.8%	8.0%	-	97	$8602w ago
PSA7	$741	1,190	$881.3K	0.2%	2.2%	0.3%	42.1%	-	96	$8002w ago
PSA6	$591	409	$241.9K	0.1%	3.7%	4.9%	48.5%	-	66	$5103w ago
Raw	$785	-	-	-	-	-	-	-	-	-

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 $212 up to gem-mint at $9.3K. Log scale. Tap a row to switch the whole page.

Raw NM$785Ungraded · market price
Raw LP$504Ungraded · market price
Raw MP$335Ungraded · market price
Raw HP$252Ungraded · market price
Raw Damaged$212Ungraded · market price

hatched = market price, not a TCGBerg fair value

Population & rarity

15,997 graded copies of Mewtwo GX Secret across 5 grades. The selected grade is highlighted.

PSA 10

2,746 · 17%

PSA 9

6,819 · 43%

PSA 8

4,833 · 30%

PSA 7

1,190 · 7.4%

PSA 6

409 · 2.6%

PSA 10 makes up 17% of graded copies: 2,746 of 15,997. PSA 9 is the most common grade (43%).

Relative valuation vs. index

How PSA 10 has moved relative to Shining Legends · Rainbow · Composite since May 17, 2026. Both indexed to 100 at the index’s inception. Card underperformed by 7.0 pp.

About Shining LegendsParent 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

$57.92M

across all printings

This printing's share

73.5%

of total set cap

Implied printing cap

$42.55M

share × set cap

Browse all sets →

Mewtwo GX - Secret at PSA 10 carries a TCGBerg fair value of $9,284 as of 2026-07-30. We track a TCGBerg fair value across 5 grades from Shining Legends, from PSA 6 up to PSA 10. A graded population of 2,746 copies sits behind the PSA 10 grade. The PSA 10 valuation carries very high confidence (a confidence score of 97). Over the past 30 days, the PSA 6 TCGBerg fair value has risen 4.9%.

Show more analysisAnalysis, commentary & FAQ

PSA 10 commentary

The TCGBerg fair value of a PSA 10 Mewtwo GX - Secret is $9,284 as of 2026-07-30. 2,746 copies have been graded at this level. This valuation carries very high confidence (a confidence score of 97). Over the past 30 days the TCGBerg fair value has risen 0.6%. The most recent recorded sale was $9,350 on 2026-07-28.

PSA 10 - frequently asked

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

$9,284 as of 2026-07-30, our model-derived fair value for a PSA 10 Mewtwo GX - Secret based on recent graded sales.

How rare is a PSA 10 Mewtwo GX - Secret?

2,746 copies have been graded at PSA 10, the graded population behind this atom.

How has the PSA 10 Mewtwo GX - Secret price moved recently?

Its TCGBerg fair value has risen 0.6% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 10 Mewtwo GX - Secret?: $9,284 as of 2026-07-30, our model-derived fair value for a PSA 10 Mewtwo GX - Secret based on recent graded sales.
How rare is a PSA 10 Mewtwo GX - Secret?: 2,746 copies have been graded at PSA 10, the graded population behind this atom.
How has the PSA 10 Mewtwo GX - Secret price moved recently?: Its TCGBerg fair value has risen 0.6% over the past 30 days.

PSA 9 commentary

The TCGBerg fair value of a PSA 9 Mewtwo GX - Secret is $1,713 as of 2026-07-30. 6,819 copies have been graded at this level. This valuation carries very high confidence (a confidence score of 97). Over the past 30 days the TCGBerg fair value has risen 4.6%. The most recent recorded sale was $1,899 on 2026-07-27.

PSA 9 - frequently asked

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

$1,713 as of 2026-07-30, our model-derived fair value for a PSA 9 Mewtwo GX - Secret based on recent graded sales.

How rare is a PSA 9 Mewtwo GX - Secret?

6,819 copies have been graded at PSA 9, the graded population behind this atom.

How has the PSA 9 Mewtwo GX - Secret price moved recently?

Its TCGBerg fair value has risen 4.6% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 9 Mewtwo GX - Secret?: $1,713 as of 2026-07-30, our model-derived fair value for a PSA 9 Mewtwo GX - Secret based on recent graded sales.
How rare is a PSA 9 Mewtwo GX - Secret?: 6,819 copies have been graded at PSA 9, the graded population behind this atom.
How has the PSA 9 Mewtwo GX - Secret price moved recently?: Its TCGBerg fair value has risen 4.6% over the past 30 days.

PSA 8 commentary

The TCGBerg fair value of a PSA 8 Mewtwo GX - Secret is $880 as of 2026-07-30. 4,833 copies have been graded at this level. This valuation carries very high confidence (a confidence score of 97). Over the past 30 days the TCGBerg fair value has fallen 3.8%. The most recent recorded sale was $860 on 2026-07-29.

PSA 8 - frequently asked

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

$880 as of 2026-07-30, our model-derived fair value for a PSA 8 Mewtwo GX - Secret based on recent graded sales.

How rare is a PSA 8 Mewtwo GX - Secret?

4,833 copies have been graded at PSA 8, the graded population behind this atom.

How has the PSA 8 Mewtwo GX - Secret price moved recently?

Its TCGBerg fair value has fallen 3.8% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 8 Mewtwo GX - Secret?: $880 as of 2026-07-30, our model-derived fair value for a PSA 8 Mewtwo GX - Secret based on recent graded sales.
How rare is a PSA 8 Mewtwo GX - Secret?: 4,833 copies have been graded at PSA 8, the graded population behind this atom.
How has the PSA 8 Mewtwo GX - Secret price moved recently?: Its TCGBerg fair value has fallen 3.8% over the past 30 days.

PSA 7 commentary

The TCGBerg fair value of a PSA 7 Mewtwo GX - Secret is $741 as of 2026-07-30. 1,190 copies have been graded at this level. This valuation carries very high confidence (a confidence score of 96). Over the past 30 days the TCGBerg fair value has risen 0.3%. The most recent recorded sale was $800 on 2026-07-28.

PSA 7 - frequently asked

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

$741 as of 2026-07-30, our model-derived fair value for a PSA 7 Mewtwo GX - Secret based on recent graded sales.

How rare is a PSA 7 Mewtwo GX - Secret?

1,190 copies have been graded at PSA 7, the graded population behind this atom.

How has the PSA 7 Mewtwo GX - Secret price moved recently?

Its TCGBerg fair value has risen 0.3% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 7 Mewtwo GX - Secret?: $741 as of 2026-07-30, our model-derived fair value for a PSA 7 Mewtwo GX - Secret based on recent graded sales.
How rare is a PSA 7 Mewtwo GX - Secret?: 1,190 copies have been graded at PSA 7, the graded population behind this atom.
How has the PSA 7 Mewtwo GX - Secret price moved recently?: Its TCGBerg fair value has risen 0.3% over the past 30 days.

PSA 6 commentary

The TCGBerg fair value of a PSA 6 Mewtwo GX - Secret is $591 as of 2026-07-30. 409 copies have been graded at this level. This valuation carries high confidence (a confidence score of 66). Over the past 30 days the TCGBerg fair value has risen 4.9%. The most recent recorded sale was $510 on 2026-07-23.

PSA 6 - frequently asked

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

$591 as of 2026-07-30, our model-derived fair value for a PSA 6 Mewtwo GX - Secret based on recent graded sales.

How rare is a PSA 6 Mewtwo GX - Secret?

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

How has the PSA 6 Mewtwo GX - Secret price moved recently?

Its TCGBerg fair value has risen 4.9% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 6 Mewtwo GX - Secret?: $591 as of 2026-07-30, our model-derived fair value for a PSA 6 Mewtwo GX - Secret based on recent graded sales.
How rare is a PSA 6 Mewtwo GX - Secret?: 409 copies have been graded at PSA 6, the graded population behind this atom.
How has the PSA 6 Mewtwo GX - Secret price moved recently?: Its TCGBerg fair value has risen 4.9% over the past 30 days.

Other printings of Mewtwo GX and indices that include this card in their constituent basket.

Other printings of Mewtwo GX

Mewtwo GX Secret-Missing Texture - Secret-Missing Texture

Indices containing this card

Parent set

Shining Legends

Set total cap

$57.92M

Recent sales10 tracked

Date	Grade	Price	Source	vs TCGBerg FV
Jul 28, 2026	PSA10	$9,350	ebay	0.7%
Jul 28, 2026	PSA10	$9,250	ebay	0.4%
Jul 28, 2026	PSA10	$9,790	ebay	5.4%
Jul 26, 2026	PSA10	$9,500	ebay	3.3%
Jul 24, 2026	PSA10	$8,200	ebay	10.9%
Jul 24, 2026	PSA10	$9,300	ebay	1.1%
Jul 23, 2026	PSA10	$9,000	ebay	2.2%
Jul 21, 2026	PSA10	$8,700	ebay	5.4%
Jul 20, 2026	PSA10	$8,100	fanatics_collect	12.0%
Jul 20, 2026	PSA10	$9,400	ebay	2.2%

$9,350
Jul 28, 2026 · via ebay
PSA 10versus fair value, up 0.7%
$9,250
Jul 28, 2026 · via ebay
PSA 10versus fair value, down 0.4%
$9,790
Jul 28, 2026 · via ebay
PSA 10versus fair value, up 5.4%
$9,500
Jul 26, 2026 · via ebay
PSA 10versus fair value, up 3.3%
$8,200
Jul 24, 2026 · via ebay
PSA 10versus fair value, down 10.9%
$9,300
Jul 24, 2026 · via ebay
PSA 10versus fair value, up 1.1%
$9,000
Jul 23, 2026 · via ebay
PSA 10versus fair value, down 2.2%
$8,700
Jul 21, 2026 · via ebay
PSA 10versus fair value, down 5.4%
$8,100
Jul 20, 2026 · via fanatics_collect
PSA 10versus fair value, down 12.0%
$9,400
Jul 20, 2026 · via ebay
PSA 10versus fair value, up 2.2%

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$9,284
1d 0.1%7d 0.8%30d 0.6%
Pop
2,746
Mcap
$25.49M
Conf
97
Last
$9,350
PSA9$1,713
1d 0.0%7d 1.5%30d 4.6%
Pop
6,819
Mcap
$11.68M
Conf
97
Last
$1,899
PSA8$880
1d 0.4%7d 0.7%30d 3.8%
Pop
4,833
Mcap
$4.25M
Conf
97
Last
$860


PSA10	$9,284	2,746	$25.49M	0.1%	0.8%	0.6%	23.4%	-	97	$9,3502w ago
PSA9	$1,713	6,819	$11.68M	0.0%	1.5%	4.6%	23.2%	-	97	$1,8992w ago
PSA8	$880	4,833	$4.25M	0.4%	0.7%	3.8%	8.0%	-	97	$8602w ago
PSA7	$741	1,190	$881.3K	0.2%	2.2%	0.3%	42.1%	-	96	$8002w ago
PSA6	$591	409	$241.9K	0.1%	3.7%	4.9%	48.5%	-	66	$5103w ago
Raw	$785	-	-	-	-	-	-	-	-	-

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 $212 up to gem-mint at $9.3K. Log scale. Tap a row to switch the whole page.

Raw NM$785Ungraded · market price
Raw LP$504Ungraded · market price
Raw MP$335Ungraded · market price
Raw HP$252Ungraded · market price
Raw Damaged$212Ungraded · market price

hatched = market price, not a TCGBerg fair value

Population & rarity

15,997 graded copies of Mewtwo GX Secret across 5 grades. The selected grade is highlighted.

PSA 10

2,746 · 17%

PSA 9

6,819 · 43%

PSA 8

4,833 · 30%

PSA 7

1,190 · 7.4%

PSA 6

409 · 2.6%

PSA 10 makes up 17% of graded copies: 2,746 of 15,997. PSA 9 is the most common grade (43%).

Relative valuation vs. index

How PSA 10 has moved relative to Shining Legends · Rainbow · Composite since May 17, 2026. Both indexed to 100 at the index’s inception. Card underperformed by 7.0 pp.

About Shining LegendsParent 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

$57.92M

across all printings

This printing's share

73.5%

of total set cap

Implied printing cap

$42.55M

share × set cap

Browse all sets →

Show more analysisAnalysis, commentary & FAQ

PSA 10 commentary

PSA 10 - frequently asked

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

$9,284 as of 2026-07-30, our model-derived fair value for a PSA 10 Mewtwo GX - Secret based on recent graded sales.

How rare is a PSA 10 Mewtwo GX - Secret?

2,746 copies have been graded at PSA 10, the graded population behind this atom.

How has the PSA 10 Mewtwo GX - Secret price moved recently?

Its TCGBerg fair value has risen 0.6% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 10 Mewtwo GX - Secret?: $9,284 as of 2026-07-30, our model-derived fair value for a PSA 10 Mewtwo GX - Secret based on recent graded sales.
How rare is a PSA 10 Mewtwo GX - Secret?: 2,746 copies have been graded at PSA 10, the graded population behind this atom.
How has the PSA 10 Mewtwo GX - Secret price moved recently?: Its TCGBerg fair value has risen 0.6% over the past 30 days.

PSA 9 commentary

PSA 9 - frequently asked

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

$1,713 as of 2026-07-30, our model-derived fair value for a PSA 9 Mewtwo GX - Secret based on recent graded sales.

How rare is a PSA 9 Mewtwo GX - Secret?

6,819 copies have been graded at PSA 9, the graded population behind this atom.

How has the PSA 9 Mewtwo GX - Secret price moved recently?

Its TCGBerg fair value has risen 4.6% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 9 Mewtwo GX - Secret?: $1,713 as of 2026-07-30, our model-derived fair value for a PSA 9 Mewtwo GX - Secret based on recent graded sales.
How rare is a PSA 9 Mewtwo GX - Secret?: 6,819 copies have been graded at PSA 9, the graded population behind this atom.
How has the PSA 9 Mewtwo GX - Secret price moved recently?: Its TCGBerg fair value has risen 4.6% over the past 30 days.

PSA 8 commentary

PSA 8 - frequently asked

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

$880 as of 2026-07-30, our model-derived fair value for a PSA 8 Mewtwo GX - Secret based on recent graded sales.

How rare is a PSA 8 Mewtwo GX - Secret?

4,833 copies have been graded at PSA 8, the graded population behind this atom.

How has the PSA 8 Mewtwo GX - Secret price moved recently?

Its TCGBerg fair value has fallen 3.8% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 8 Mewtwo GX - Secret?: $880 as of 2026-07-30, our model-derived fair value for a PSA 8 Mewtwo GX - Secret based on recent graded sales.
How rare is a PSA 8 Mewtwo GX - Secret?: 4,833 copies have been graded at PSA 8, the graded population behind this atom.
How has the PSA 8 Mewtwo GX - Secret price moved recently?: Its TCGBerg fair value has fallen 3.8% over the past 30 days.

PSA 7 commentary

PSA 7 - frequently asked

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

$741 as of 2026-07-30, our model-derived fair value for a PSA 7 Mewtwo GX - Secret based on recent graded sales.

How rare is a PSA 7 Mewtwo GX - Secret?

1,190 copies have been graded at PSA 7, the graded population behind this atom.

How has the PSA 7 Mewtwo GX - Secret price moved recently?

Its TCGBerg fair value has risen 0.3% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 7 Mewtwo GX - Secret?: $741 as of 2026-07-30, our model-derived fair value for a PSA 7 Mewtwo GX - Secret based on recent graded sales.
How rare is a PSA 7 Mewtwo GX - Secret?: 1,190 copies have been graded at PSA 7, the graded population behind this atom.
How has the PSA 7 Mewtwo GX - Secret price moved recently?: Its TCGBerg fair value has risen 0.3% over the past 30 days.

PSA 6 commentary

PSA 6 - frequently asked

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

$591 as of 2026-07-30, our model-derived fair value for a PSA 6 Mewtwo GX - Secret based on recent graded sales.

How rare is a PSA 6 Mewtwo GX - Secret?

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

How has the PSA 6 Mewtwo GX - Secret price moved recently?

Its TCGBerg fair value has risen 4.9% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 6 Mewtwo GX - Secret?: $591 as of 2026-07-30, our model-derived fair value for a PSA 6 Mewtwo GX - Secret based on recent graded sales.
How rare is a PSA 6 Mewtwo GX - Secret?: 409 copies have been graded at PSA 6, the graded population behind this atom.
How has the PSA 6 Mewtwo GX - Secret price moved recently?: Its TCGBerg fair value has risen 4.9% over the past 30 days.

Other printings of Mewtwo GX and indices that include this card in their constituent basket.

Other printings of Mewtwo GX

Mewtwo GX Secret-Missing Texture - Secret-Missing Texture

Indices containing this card

Parent set

Shining Legends

Set total cap

$57.92M

Mewtwo GX #78, Secret, Shining Legends

Mewtwo GX #78, Secret, Shining Legends

Recent sales10 tracked

All grades matrix

Population & rarityHow Mewtwo 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 May 17, 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 Shining LegendsParent 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

Other printings of Mewtwo GX

Indices containing this card

Parent set

Recent sales10 tracked

All grades matrix

Population & rarityHow Mewtwo 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 May 17, 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 Shining LegendsParent 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

Other printings of Mewtwo GX

Indices containing this card

Parent set

Population & rarity

Relative valuation vs. index

Population & rarity

Relative valuation vs. index