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%

Base Set · Unlimited

Mewtwo #10, Unlimited, Base Set

Base Set UnlimitedBAS10:EN

TKRBAS10:EN-P9

TCGBerg fair value· PSA 9

$417

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

Data quality excellent95/100

30D performance11.3%

30D↑ 11.3%

YTD↑ 108.2%

MCAP$2.05M

VOL4.4%

Last sale (Aug 5, 2026)Last sale

$413

PSA 9 · Aug 5, 2026

1.0% below TCGBerg fair value

5-sale avg

$433

last 5 sales

Population · PSA 9

4,912

graded copies

TCGBerg fair value · PSA 9

$417

30D11.3%YTD108.2%

Data quality excellent95/100

Market cap

$2.05M

fair value x population

Population

4,912

graded copies

Last sale

$413

-1.0% vs fair

5-sale avg

$433

recent sales

Price history

Weekly fair value for PSA 9. 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 9Sale below fairSale above fairOutlier

Aug 17, 202552 weekly points · 95 salesAug 9, 2026

Base Set · Unlimited

Mewtwo #10, Unlimited, Base Set

Base Set UnlimitedBAS10:EN

TKRBAS10:EN-P9

TCGBerg fair value· PSA 9

$417

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

Data quality excellent95/100

30D performance11.3%

30D↑ 11.3%

YTD↑ 108.2%

MCAP$2.05M

VOL4.4%

Last sale (Aug 5, 2026)Last sale

$413

PSA 9 · Aug 5, 2026

1.0% below TCGBerg fair value

5-sale avg

$433

last 5 sales

Population · PSA 9

4,912

graded copies

TCGBerg fair value · PSA 9

$417

30D11.3%YTD108.2%

Data quality excellent95/100

Market cap

$2.05M

fair value x population

Population

4,912

graded copies

Last sale

$413

-1.0% vs fair

5-sale avg

$433

recent sales

Price history

Weekly fair value for PSA 9. 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 9Sale below fairSale above fairOutlier

Aug 17, 202552 weekly points · 95 salesAug 9, 2026

Active listings on eBay

PSA 9 · eBay

Affiliate links: TCGBerg may earn a commission on purchases made through these listings.

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
Aug 5, 2026	PSA9	$413	ebay	1.0%
Aug 4, 2026	PSA9	$416	ebay	0.3%
Aug 4, 2026	PSA9	$450	ebay	7.9%
Aug 3, 2026	PSA9	$480	fanatics_collect	15.0%
Aug 3, 2026	PSA9	$408	fanatics_collect	2.2%
Aug 3, 2026	PSA9	$500	ebay	19.8%
Aug 2, 2026	PSA9	$400	ebay	1.3%
Aug 1, 2026	PSA9	$388	ebay	4.3%
Jul 30, 2026	PSA9	$450	ebay	11.0%
Jul 30, 2026	PSA9	$343	ebay	15.4%

$413
Aug 5, 2026 · via ebay
PSA 9versus fair value, down 1.0%
$416
Aug 4, 2026 · via ebay
PSA 9versus fair value, down 0.3%
$450
Aug 4, 2026 · via ebay
PSA 9versus fair value, up 7.9%
$480
Aug 3, 2026 · via fanatics_collect
PSA 9versus fair value, up 15.0%
$408
Aug 3, 2026 · via fanatics_collect
PSA 9versus fair value, down 2.2%
$500
Aug 3, 2026 · via ebay
PSA 9versus fair value, up 19.8%
$400
Aug 2, 2026 · via ebay
PSA 9versus fair value, down 1.3%
$388
Aug 1, 2026 · via ebay
PSA 9versus fair value, down 4.3%
$450
Jul 30, 2026 · via ebay
PSA 9versus fair value, up 11.0%
$343
Jul 30, 2026 · via ebay
PSA 9versus fair value, down 15.4%

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$4,180
1d 0.5%7d 5.0%30d 12.2%
Pop
596
Mcap
$2.49M
Conf
47
Last
$4,500
PSA9$417
1d 0.1%7d 2.9%30d 11.3%
Pop
4,912
Mcap
$2.05M
Conf
95
Last
$413
PSA8$186
1d 0.1%7d 1.9%30d 7.4%
Pop
6,914
Mcap
$1.29M
Conf
93
Last
$173


PSA10	$4,180	596	$2.49M	0.5%	5.0%	12.2%	85.9%	-	47	$4,5001w ago
PSA9	$417	4,912	$2.05M	0.1%	2.9%	11.3%	16.8%	-	95	$4131w ago
PSA8	$186	6,914	$1.29M	0.1%	1.9%	7.4%	55.1%	-	93	$1732w ago
PSA7	$111	5,519	$609.8K	0.0%	0.1%	11.9%	29.1%	-	93	$1001w ago
PSA6	$66	5,116	$336.2K	0.2%	1.8%	1.2%	11.6%	-	95	$741w ago
Raw	$71	-	-	-	-	-	-	-	-	-

Price spectrum

Where the current price sits relative to recent sales and active listings, and how each reference point compares to TCGBerg fair value. The bar spans $265 to $964; it shades green below fair value to red above, saturating at ±25%.

TCGBerg fair value

$417

−25%

$313

$417

+25%

$522

+131%

$964

$265$417$964

LowFairHigh

Last sale
$413
1.0% below fairAug 5, 2026
Lowest ask
$500
19.8% above fairlowest active ask
Median ask
$688
64.8% above fairmedian active ask
Highest ask
$916
119.6% above fairhighest active ask

Last sale was 1.0% below TCGBerg fair value, the best listing right now sits 19.8% above fair.

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 $9.70 up to gem-mint at $4.2K. Log scale. Tap a row to switch the whole page.

Raw NM$71Ungraded · TCGBerg fair value
Raw LP$38Ungraded · TCGBerg fair value
Raw MP$21Ungraded · TCGBerg fair value
Raw HP$14Ungraded · TCGBerg fair value
Raw Damaged$9.70Ungraded · TCGBerg fair value

Population & rarity

23,057 graded copies of Mewtwo Unlimited across 5 grades. The selected grade is highlighted.

PSA 10

596 · 2.6%

PSA 9

4,912 · 21%

PSA 8

6,914 · 30%

PSA 7

5,519 · 24%

PSA 6

5,116 · 22%

PSA 9 makes up 21% of graded copies: 4,912 of 23,057. PSA 8 is the most common grade (30%).

Relative valuation vs. index

How PSA 9 has moved relative to Base Set · Unlimited · Composite since Aug 11, 2024. Both indexed to 100 at the index’s inception. Card outperformed by 58.1 pp.

About Base SetParent 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

$604.51M

across all printings

This printing's share

1.1%

of total set cap

Implied printing cap

$6.77M

share × set cap

Browse all sets →

Mewtwo - Unlimited Holo at PSA 10 carries a TCGBerg fair value of $4,180 as of 2026-08-09. We track a TCGBerg fair value across 5 grades from Base Set, from PSA 6 up to PSA 10. A graded population of 596 copies sits behind the PSA 10 grade. The PSA 10 valuation carries medium confidence (a confidence score of 47). Over the past 30 days, the PSA 10 TCGBerg fair value has risen 12.2%.

Show more analysisAnalysis, commentary & FAQ

PSA 10 commentary

The TCGBerg fair value of a PSA 10 Mewtwo - Unlimited Holo is $4,180 as of 2026-08-09. 596 copies have been graded at this level. This valuation carries medium confidence (a confidence score of 47). Over the past 30 days the TCGBerg fair value has risen 12.2%. The most recent recorded sale was $4,500 on 2026-08-04.

PSA 10 - frequently asked

What is the TCGBerg fair value of a PSA 10 Mewtwo - Unlimited Holo?

$4,180 as of 2026-08-09, our model-derived fair value for a PSA 10 Mewtwo - Unlimited Holo based on recent graded sales.

How rare is a PSA 10 Mewtwo - Unlimited Holo?

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

How has the PSA 10 Mewtwo - Unlimited Holo price moved recently?

Its TCGBerg fair value has risen 12.2% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 10 Mewtwo - Unlimited Holo?: $4,180 as of 2026-08-09, our model-derived fair value for a PSA 10 Mewtwo - Unlimited Holo based on recent graded sales.
How rare is a PSA 10 Mewtwo - Unlimited Holo?: 596 copies have been graded at PSA 10, the graded population behind this atom.
How has the PSA 10 Mewtwo - Unlimited Holo price moved recently?: Its TCGBerg fair value has risen 12.2% over the past 30 days.

PSA 9 commentary

The TCGBerg fair value of a PSA 9 Mewtwo - Unlimited Holo is $417 as of 2026-08-09. 4,912 copies have been graded at this level. This valuation carries very high confidence (a confidence score of 95). Over the past 30 days the TCGBerg fair value has risen 11.3%. The most recent recorded sale was $413 on 2026-08-05.

PSA 9 - frequently asked

What is the TCGBerg fair value of a PSA 9 Mewtwo - Unlimited Holo?

$417 as of 2026-08-09, our model-derived fair value for a PSA 9 Mewtwo - Unlimited Holo based on recent graded sales.

How rare is a PSA 9 Mewtwo - Unlimited Holo?

4,912 copies have been graded at PSA 9, the graded population behind this atom.

How has the PSA 9 Mewtwo - Unlimited Holo price moved recently?

Its TCGBerg fair value has risen 11.3% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 9 Mewtwo - Unlimited Holo?: $417 as of 2026-08-09, our model-derived fair value for a PSA 9 Mewtwo - Unlimited Holo based on recent graded sales.
How rare is a PSA 9 Mewtwo - Unlimited Holo?: 4,912 copies have been graded at PSA 9, the graded population behind this atom.
How has the PSA 9 Mewtwo - Unlimited Holo price moved recently?: Its TCGBerg fair value has risen 11.3% over the past 30 days.

PSA 8 commentary

The TCGBerg fair value of a PSA 8 Mewtwo - Unlimited Holo is $186 as of 2026-08-09. 6,914 copies have been graded at this level. This valuation carries very high confidence (a confidence score of 93). Over the past 30 days the TCGBerg fair value has fallen 7.4%. The most recent recorded sale was $172 on 2026-08-03.

PSA 8 - frequently asked

What is the TCGBerg fair value of a PSA 8 Mewtwo - Unlimited Holo?

$186 as of 2026-08-09, our model-derived fair value for a PSA 8 Mewtwo - Unlimited Holo based on recent graded sales.

How rare is a PSA 8 Mewtwo - Unlimited Holo?

6,914 copies have been graded at PSA 8, the graded population behind this atom.

How has the PSA 8 Mewtwo - Unlimited Holo price moved recently?

Its TCGBerg fair value has fallen 7.4% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 8 Mewtwo - Unlimited Holo?: $186 as of 2026-08-09, our model-derived fair value for a PSA 8 Mewtwo - Unlimited Holo based on recent graded sales.
How rare is a PSA 8 Mewtwo - Unlimited Holo?: 6,914 copies have been graded at PSA 8, the graded population behind this atom.
How has the PSA 8 Mewtwo - Unlimited Holo price moved recently?: Its TCGBerg fair value has fallen 7.4% over the past 30 days.

PSA 7 commentary

The TCGBerg fair value of a PSA 7 Mewtwo - Unlimited Holo is $110 as of 2026-08-09. 5,519 copies have been graded at this level. This valuation carries very high confidence (a confidence score of 93). Over the past 30 days the TCGBerg fair value has risen 11.9%. The most recent recorded sale was $100 on 2026-08-05.

PSA 7 - frequently asked

What is the TCGBerg fair value of a PSA 7 Mewtwo - Unlimited Holo?

$110 as of 2026-08-09, our model-derived fair value for a PSA 7 Mewtwo - Unlimited Holo based on recent graded sales.

How rare is a PSA 7 Mewtwo - Unlimited Holo?

5,519 copies have been graded at PSA 7, the graded population behind this atom.

How has the PSA 7 Mewtwo - Unlimited Holo price moved recently?

Its TCGBerg fair value has risen 11.9% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 7 Mewtwo - Unlimited Holo?: $110 as of 2026-08-09, our model-derived fair value for a PSA 7 Mewtwo - Unlimited Holo based on recent graded sales.
How rare is a PSA 7 Mewtwo - Unlimited Holo?: 5,519 copies have been graded at PSA 7, the graded population behind this atom.
How has the PSA 7 Mewtwo - Unlimited Holo price moved recently?: Its TCGBerg fair value has risen 11.9% over the past 30 days.

PSA 6 commentary

The TCGBerg fair value of a PSA 6 Mewtwo - Unlimited Holo is $66 as of 2026-08-09. 5,116 copies have been graded at this level. This valuation carries very high confidence (a confidence score of 95). Over the past 30 days the TCGBerg fair value has fallen 1.2%. The most recent recorded sale was $74 on 2026-08-04.

PSA 6 - frequently asked

What is the TCGBerg fair value of a PSA 6 Mewtwo - Unlimited Holo?

$66 as of 2026-08-09, our model-derived fair value for a PSA 6 Mewtwo - Unlimited Holo based on recent graded sales.

How rare is a PSA 6 Mewtwo - Unlimited Holo?

5,116 copies have been graded at PSA 6, the graded population behind this atom.

How has the PSA 6 Mewtwo - Unlimited Holo price moved recently?

Its TCGBerg fair value has fallen 1.2% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 6 Mewtwo - Unlimited Holo?: $66 as of 2026-08-09, our model-derived fair value for a PSA 6 Mewtwo - Unlimited Holo based on recent graded sales.
How rare is a PSA 6 Mewtwo - Unlimited Holo?: 5,116 copies have been graded at PSA 6, the graded population behind this atom.
How has the PSA 6 Mewtwo - Unlimited Holo price moved recently?: Its TCGBerg fair value has fallen 1.2% over the past 30 days.

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

Other printings of Mewtwo

Indices containing this card

Parent set

Base Set

Set total cap

$589.44M

About Base SetParent 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

$604.51M

across all printings

This printing's share

1.1%

of total set cap

Implied printing cap

$6.77M

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 - Unlimited Holo?

$4,180 as of 2026-08-09, our model-derived fair value for a PSA 10 Mewtwo - Unlimited Holo based on recent graded sales.

How rare is a PSA 10 Mewtwo - Unlimited Holo?

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

How has the PSA 10 Mewtwo - Unlimited Holo price moved recently?

Its TCGBerg fair value has risen 12.2% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 10 Mewtwo - Unlimited Holo?: $4,180 as of 2026-08-09, our model-derived fair value for a PSA 10 Mewtwo - Unlimited Holo based on recent graded sales.
How rare is a PSA 10 Mewtwo - Unlimited Holo?: 596 copies have been graded at PSA 10, the graded population behind this atom.
How has the PSA 10 Mewtwo - Unlimited Holo price moved recently?: Its TCGBerg fair value has risen 12.2% over the past 30 days.

PSA 9 commentary

PSA 9 - frequently asked

What is the TCGBerg fair value of a PSA 9 Mewtwo - Unlimited Holo?

$417 as of 2026-08-09, our model-derived fair value for a PSA 9 Mewtwo - Unlimited Holo based on recent graded sales.

How rare is a PSA 9 Mewtwo - Unlimited Holo?

4,912 copies have been graded at PSA 9, the graded population behind this atom.

How has the PSA 9 Mewtwo - Unlimited Holo price moved recently?

Its TCGBerg fair value has risen 11.3% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 9 Mewtwo - Unlimited Holo?: $417 as of 2026-08-09, our model-derived fair value for a PSA 9 Mewtwo - Unlimited Holo based on recent graded sales.
How rare is a PSA 9 Mewtwo - Unlimited Holo?: 4,912 copies have been graded at PSA 9, the graded population behind this atom.
How has the PSA 9 Mewtwo - Unlimited Holo price moved recently?: Its TCGBerg fair value has risen 11.3% over the past 30 days.

PSA 8 commentary

PSA 8 - frequently asked

What is the TCGBerg fair value of a PSA 8 Mewtwo - Unlimited Holo?

$186 as of 2026-08-09, our model-derived fair value for a PSA 8 Mewtwo - Unlimited Holo based on recent graded sales.

How rare is a PSA 8 Mewtwo - Unlimited Holo?

6,914 copies have been graded at PSA 8, the graded population behind this atom.

How has the PSA 8 Mewtwo - Unlimited Holo price moved recently?

Its TCGBerg fair value has fallen 7.4% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 8 Mewtwo - Unlimited Holo?: $186 as of 2026-08-09, our model-derived fair value for a PSA 8 Mewtwo - Unlimited Holo based on recent graded sales.
How rare is a PSA 8 Mewtwo - Unlimited Holo?: 6,914 copies have been graded at PSA 8, the graded population behind this atom.
How has the PSA 8 Mewtwo - Unlimited Holo price moved recently?: Its TCGBerg fair value has fallen 7.4% over the past 30 days.

PSA 7 commentary

PSA 7 - frequently asked

What is the TCGBerg fair value of a PSA 7 Mewtwo - Unlimited Holo?

$110 as of 2026-08-09, our model-derived fair value for a PSA 7 Mewtwo - Unlimited Holo based on recent graded sales.

How rare is a PSA 7 Mewtwo - Unlimited Holo?

5,519 copies have been graded at PSA 7, the graded population behind this atom.

How has the PSA 7 Mewtwo - Unlimited Holo price moved recently?

Its TCGBerg fair value has risen 11.9% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 7 Mewtwo - Unlimited Holo?: $110 as of 2026-08-09, our model-derived fair value for a PSA 7 Mewtwo - Unlimited Holo based on recent graded sales.
How rare is a PSA 7 Mewtwo - Unlimited Holo?: 5,519 copies have been graded at PSA 7, the graded population behind this atom.
How has the PSA 7 Mewtwo - Unlimited Holo price moved recently?: Its TCGBerg fair value has risen 11.9% over the past 30 days.

PSA 6 commentary

PSA 6 - frequently asked

What is the TCGBerg fair value of a PSA 6 Mewtwo - Unlimited Holo?

$66 as of 2026-08-09, our model-derived fair value for a PSA 6 Mewtwo - Unlimited Holo based on recent graded sales.

How rare is a PSA 6 Mewtwo - Unlimited Holo?

5,116 copies have been graded at PSA 6, the graded population behind this atom.

How has the PSA 6 Mewtwo - Unlimited Holo price moved recently?

Its TCGBerg fair value has fallen 1.2% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 6 Mewtwo - Unlimited Holo?: $66 as of 2026-08-09, our model-derived fair value for a PSA 6 Mewtwo - Unlimited Holo based on recent graded sales.
How rare is a PSA 6 Mewtwo - Unlimited Holo?: 5,116 copies have been graded at PSA 6, the graded population behind this atom.
How has the PSA 6 Mewtwo - Unlimited Holo price moved recently?: Its TCGBerg fair value has fallen 1.2% over the past 30 days.

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

Other printings of Mewtwo

Indices containing this card

Parent set

Base Set

Set total cap

$589.44M

Mewtwo #10, Unlimited, Base Set

Mewtwo #10, Unlimited, Base Set

Active listings on eBayLive asking prices from eBay sellers. The delta shows how each ask compares to TCGBerg's quoted fair value for that grade. Verified deals are marked from the published analytics feed.

Recent sales10 tracked

All grades matrix

Price spectrum

Population & rarityHow Mewtwo'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 11, 2024, 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 Base SetParent 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

Indices containing this card

Parent set

Active listings on eBayLive asking prices from eBay sellers. The delta shows how each ask compares to TCGBerg's quoted fair value for that grade. Verified deals are marked from the published analytics feed.

Recent sales10 tracked

All grades matrix

Price spectrum

Population & rarityHow Mewtwo'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 11, 2024, 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 Base SetParent 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

Indices containing this card

Parent set

Active listings on eBay

Population & rarity

Relative valuation vs. index

Active listings on eBay

Population & rarity

Relative valuation vs. index