POP Series 4 · unknown

Treecko δ #15, unknown, POP Series 4

Card number: #15/17
Rarity: Common

POP Series 4 unknownP0415:EN

TKRP0415:EN-P9

Grading toolPro

TCGBerg fair value· PSA 9

$62

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

Sales evidenceLimited

Based on 9 recorded sales. Latest sale: Sep 7, 2026.

30D performance31.0%

30D: ↑ 31.0%
YTD: ↑ 211.6%
Market cap: $2.9K
Volatility: 7.0%

Last sale (Sep 7, 2026)Last sale

$65

PSA 9 · Sep 7, 2026

4.7% above TCGBerg fair value

5-sale avg

$76

last 5 sales

Population · PSA 9

graded copies

TCGBerg fair value · PSA 9

$62

30D31.0%YTD211.6%

Sales evidenceLimited

Based on 9 recorded sales. Latest sale: Sep 7, 2026.

Market cap

$2.9K

fair value x population

Population

graded copies

Last sale

$65

+4.7% vs fair

5-sale avg

$76

recent sales

GradingPro

Price history

Open terminalPro

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

Oct 12, 202552 weekly points · 7 salesSep 29, 2026

Active listings on eBay

PSA 9 · eBay

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

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 24, 2026	Raw	$27	tcgplayer	4.5%
Sep 21, 2026	PSA7	$35	ebay	0.0%
Sep 10, 2026	Raw	$25	tcgplayer	5.5%
Sep 7, 2026	PSA9	$65	ebay	17.6%
Sep 4, 2026	Raw	$24	tcgplayer	10.1%
Aug 31, 2026	Raw	$33	tcgplayer	23.9%
Aug 29, 2026	PSA9	$43	ebay	9.6%
Aug 27, 2026	Raw	$21	tcgplayer	20.1%
Aug 16, 2026	PSA8	$51	ebay	34.6%
Aug 9, 2026	Raw	$26	tcgplayer	0.1%

$27
Sep 24, 2026 · via tcgplayer
Rawversus fair value, up 4.5%
$35
Sep 21, 2026 · via ebay
PSA7versus fair value, flat 0.0%
$25
Sep 10, 2026 · via tcgplayer
Rawversus fair value, down 5.5%
$65
Sep 7, 2026 · via ebay
PSA9versus fair value, up 17.6%
$24
Sep 4, 2026 · via tcgplayer
Rawversus fair value, down 10.1%
$33
Aug 31, 2026 · via tcgplayer
Rawversus fair value, up 23.9%
$43
Aug 29, 2026 · via ebay
PSA9versus fair value, down 9.6%
$21
Aug 27, 2026 · via tcgplayer
Rawversus fair value, down 20.1%
$51
Aug 16, 2026 · via ebay
PSA8versus fair value, up 34.6%
$26
Aug 9, 2026 · via tcgplayer
Rawversus fair value, up 0.1%

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.

CGC7$26
1d 0.9%7d 10.8%30d -
Pop
-
Mcap
-
Evidence
Sparse
Last
$35
CGC6$14
1d 0.8%7d 49.2%30d -
Pop
-
Mcap
-
Evidence
Sparse
Last
-
PSA10$656
1d 0.0%7d 0.0%30d 0.0%
Pop
13
Mcap
$8.5K
Evidence
Moderate
Last
$650


CGC7	$26	-	-	0.9%	10.8%	-	-	-	Sparse	$351w ago
CGC6	$14	-	-	0.8%	49.2%	-	-	-	Sparse	-
PSA10	$656	13	$8.5K	0.0%	0.0%	0.0%	0.0%	-	Moderate	$6506mo ago
PSA9	$62	46	$2.9K	12.0%	12.0%	31.0%	32.6%	-	Limited	$653w ago
PSA8	$53	21	$1.1K	0.6%	1.1%	40.7%	164.8%	-	Limited	$511mo ago
PSA7	$35	6	$210	0.0%	5.2%	7.9%	109.8%	-	Sparse	$351w ago
PSA6	$23	1	$23	11.3%	8.2%	42.7%	63.7%	-	Sparse	-
Raw	$26	-	-	-	1.0%	0.2%	-	-	Very strong	$275d ago

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 $3 to $83; it shades green below fair value to red above, saturating at ±25%.

TCGBerg fair value

$62

−94%

−25%

$47

$62

+25%

$78

$3$62$83

LowFairHigh

Lowest / median / highest ask
$9
85.6% below fairlowest active ask
Last sale
$65
4.7% above fairSep 7, 2026

Last sale was 4.7% above TCGBerg fair value, the best listing right now sits 85.6% below fair.

TCGBerg fair value by grade

Value at each grade and ungraded condition, on a log scale that spans the full range from the lowest grade at $14 up to gem-mint at $656. Log scale. Tap a row to switch the whole page.

Raw NM$26Ungraded · TCGBerg fair value
Raw LP$20Ungraded · TCGBerg fair value

Population & rarity

89 graded copies of Treecko δ unknown across 7 grades. The selected grade is highlighted.

PSA 10

13 · 15%

PSA 9

46 · 52%

PSA 8

21 · 24%

PSA 7

6 · 6.7%

PSA 6

1 · 1.1%

PSA 5

1 · 1.1%

PSA 4

1 · 1.1%

PSA 9 makes up 52% of graded copies: 46 of 89. It’s the most common grade for this card.

Relative valuation vs. index

How PSA 9 has moved relative to POP Series 4 · Composite since May 17, 2026. Both indexed to 100 at the index’s inception. Card underperformed by 118.4 pp.

About POP Series 4Parent 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

$1.34M

across all printings

This printing's share

1.0%

of total set cap

Implied printing cap

$12.7K

share × set cap

Browse all sets →

Treecko δ - unknown at PSA 10 carries a TCGBerg fair value of $656 as of 2026-09-29. We track a TCGBerg fair value across 7 grades from POP Series 4, from CGC 6 up to PSA 10. A graded population of 13 copies sits behind the PSA 10 grade. The PSA 10 valuation rests on moderate sales evidence. Over the past 30 days, the PSA 6 TCGBerg fair value has risen 42.7%.

Show more analysisAnalysis, commentary & FAQ

CGC 7 commentary

The TCGBerg fair value of a CGC 7 Treecko δ - unknown is $26 as of 2026-09-29. This valuation rests on sparse sales evidence. The most recent recorded sale was $35 on 2026-09-21.

CGC 7 - frequently asked

What is the TCGBerg fair value of a CGC 7 Treecko δ - unknown?

$26 as of 2026-09-29, our model-derived fair value for a CGC 7 Treecko δ - unknown based on recent graded sales.

What did a CGC 7 Treecko δ - unknown last sell for?

The most recent recorded sale was $35 on 2026-09-21.

Frequently asked

What is the TCGBerg fair value of a CGC 7 Treecko δ - unknown?: $26 as of 2026-09-29, our model-derived fair value for a CGC 7 Treecko δ - unknown based on recent graded sales.
What did a CGC 7 Treecko δ - unknown last sell for?: The most recent recorded sale was $35 on 2026-09-21.

CGC 6 commentary

The TCGBerg fair value of a CGC 6 Treecko δ - unknown is $14 as of 2026-09-29. This valuation rests on sparse sales evidence.

CGC 6 - frequently asked

What is the TCGBerg fair value of a CGC 6 Treecko δ - unknown?

$14 as of 2026-09-29, our model-derived fair value for a CGC 6 Treecko δ - unknown based on recent graded sales.

How much sales evidence backs the CGC 6 Treecko δ - unknown valuation?

It rests on sparse sales evidence, as measured by our fair-value model.

Frequently asked

What is the TCGBerg fair value of a CGC 6 Treecko δ - unknown?: $14 as of 2026-09-29, our model-derived fair value for a CGC 6 Treecko δ - unknown based on recent graded sales.
How much sales evidence backs the CGC 6 Treecko δ - unknown valuation?: It rests on sparse sales evidence, as measured by our fair-value model.

PSA 10 commentary

The TCGBerg fair value of a PSA 10 Treecko δ - unknown is $656 as of 2026-09-29. 13 copies have been graded at this level. This valuation rests on moderate sales evidence. The most recent recorded sale was $650 on 2026-04-15.

PSA 10 - frequently asked

What is the TCGBerg fair value of a PSA 10 Treecko δ - unknown?

$656 as of 2026-09-29, our model-derived fair value for a PSA 10 Treecko δ - unknown based on recent graded sales.

How rare is a PSA 10 Treecko δ - unknown?

13 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 Treecko δ - unknown?: $656 as of 2026-09-29, our model-derived fair value for a PSA 10 Treecko δ - unknown based on recent graded sales.
How rare is a PSA 10 Treecko δ - unknown?: 13 copies have been graded at PSA 10, the graded population behind this atom.

PSA 9 commentary

The TCGBerg fair value of a PSA 9 Treecko δ - unknown is $62 as of 2026-09-29. 46 copies have been graded at this level. This valuation rests on limited sales evidence. Over the past 30 days the TCGBerg fair value has risen 31.0%. The most recent recorded sale was $65 on 2026-09-07.

PSA 9 - frequently asked

What is the TCGBerg fair value of a PSA 9 Treecko δ - unknown?

$62 as of 2026-09-29, our model-derived fair value for a PSA 9 Treecko δ - unknown based on recent graded sales.

How rare is a PSA 9 Treecko δ - unknown?

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

How has the PSA 9 Treecko δ - unknown price moved recently?

Its TCGBerg fair value has risen 31.0% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 9 Treecko δ - unknown?: $62 as of 2026-09-29, our model-derived fair value for a PSA 9 Treecko δ - unknown based on recent graded sales.
How rare is a PSA 9 Treecko δ - unknown?: 46 copies have been graded at PSA 9, the graded population behind this atom.
How has the PSA 9 Treecko δ - unknown price moved recently?: Its TCGBerg fair value has risen 31.0% over the past 30 days.

PSA 8 commentary

The TCGBerg fair value of a PSA 8 Treecko δ - unknown is $53 as of 2026-09-29. 21 copies have been graded at this level. This valuation rests on limited sales evidence. Over the past 30 days the TCGBerg fair value has risen 40.7%. The most recent recorded sale was $51 on 2026-08-16.

PSA 8 - frequently asked

What is the TCGBerg fair value of a PSA 8 Treecko δ - unknown?

$53 as of 2026-09-29, our model-derived fair value for a PSA 8 Treecko δ - unknown based on recent graded sales.

How rare is a PSA 8 Treecko δ - unknown?

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

How has the PSA 8 Treecko δ - unknown price moved recently?

Its TCGBerg fair value has risen 40.7% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 8 Treecko δ - unknown?: $53 as of 2026-09-29, our model-derived fair value for a PSA 8 Treecko δ - unknown based on recent graded sales.
How rare is a PSA 8 Treecko δ - unknown?: 21 copies have been graded at PSA 8, the graded population behind this atom.
How has the PSA 8 Treecko δ - unknown price moved recently?: Its TCGBerg fair value has risen 40.7% over the past 30 days.

PSA 7 commentary

The TCGBerg fair value of a PSA 7 Treecko δ - unknown is $35 as of 2026-09-29. 6 copies have been graded at this level. This valuation rests on sparse sales evidence. Over the past 30 days the TCGBerg fair value has risen 7.9%. The most recent recorded sale was $35 on 2026-09-21.

PSA 7 - frequently asked

What is the TCGBerg fair value of a PSA 7 Treecko δ - unknown?

$35 as of 2026-09-29, our model-derived fair value for a PSA 7 Treecko δ - unknown based on recent graded sales.

How rare is a PSA 7 Treecko δ - unknown?

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

How has the PSA 7 Treecko δ - unknown price moved recently?

Its TCGBerg fair value has risen 7.9% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 7 Treecko δ - unknown?: $35 as of 2026-09-29, our model-derived fair value for a PSA 7 Treecko δ - unknown based on recent graded sales.
How rare is a PSA 7 Treecko δ - unknown?: 6 copies have been graded at PSA 7, the graded population behind this atom.
How has the PSA 7 Treecko δ - unknown price moved recently?: Its TCGBerg fair value has risen 7.9% over the past 30 days.

PSA 6 commentary

The TCGBerg fair value of a PSA 6 Treecko δ - unknown is $23 as of 2026-09-29. 1 copies have been graded at this level. This valuation rests on sparse sales evidence. Over the past 30 days the TCGBerg fair value has risen 42.7%.

PSA 6 - frequently asked

What is the TCGBerg fair value of a PSA 6 Treecko δ - unknown?

$23 as of 2026-09-29, our model-derived fair value for a PSA 6 Treecko δ - unknown based on recent graded sales.

How rare is a PSA 6 Treecko δ - unknown?

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

How has the PSA 6 Treecko δ - unknown price moved recently?

Its TCGBerg fair value has risen 42.7% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 6 Treecko δ - unknown?: $23 as of 2026-09-29, our model-derived fair value for a PSA 6 Treecko δ - unknown based on recent graded sales.
How rare is a PSA 6 Treecko δ - unknown?: 1 copies have been graded at PSA 6, the graded population behind this atom.
How has the PSA 6 Treecko δ - unknown price moved recently?: Its TCGBerg fair value has risen 42.7% over the past 30 days.

Every printing of Treecko δ and the indices that include this card in their constituent basket.

Indices containing this card

Parent set

POP Series 4

Set total cap

$1.12M

Date

Grade

Price

Source

vs TCGBerg FV

Sep 24, 2026

Raw

$27

tcgplayer

4.5%

Sep 21, 2026

PSA7

$35

ebay

0.0%

Sep 10, 2026

Raw

$25

tcgplayer

5.5%

Sep 7, 2026

PSA9

$65

ebay

17.6%

Sep 4, 2026

Raw

$24

tcgplayer

10.1%

Aug 31, 2026

Raw

$33

tcgplayer

23.9%

Aug 29, 2026

PSA9

$43

ebay

9.6%

Aug 27, 2026

Raw

$21

tcgplayer

20.1%

Aug 16, 2026

PSA8

$51

ebay

34.6%

Aug 9, 2026

Raw

$26

tcgplayer

0.1%

CGC7

$26

0.9%

10.8%

Sparse

$351w ago

CGC6

$14

0.8%

49.2%

Sparse

PSA10

$656

$8.5K

0.0%

Moderate

$6506mo ago

PSA9

$62

$2.9K

12.0%

31.0%

Limited

$653w ago

PSA8

$53

$1.1K

0.6%

1.1%

40.7%

Limited

$511mo ago

PSA7

$35

$210

0.0%

5.2%

7.9%

Sparse

$351w ago

PSA6

$23

11.3%

8.2%

42.7%

Sparse

Raw

$26

1.0%

0.2%

Very strong

$275d ago

Treecko δ #15, unknown, POP Series 4

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.

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

Price spectrum

Population & rarityHow Treecko δ'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 POP Series 4Parent set

Analysis

CGC 7 commentary

CGC 7 - frequently asked

CGC 6 commentary

CGC 6 - frequently asked

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

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.

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

Price spectrum

Population & rarityHow Treecko δ'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 POP Series 4Parent set

Analysis

CGC 7 commentary

CGC 7 - frequently asked

CGC 6 commentary

CGC 6 - frequently asked

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

Active listings on eBay

Behind the scenes

Population & rarity

Relative valuation vs. index

Active listings on eBay

Behind the scenes

Population & rarity

Relative valuation vs. index