Japanese Topsun · Normal

Koffing #109, Normal, Japanese Topsun

Japanese edition

Card number: #109
Rarity: Common
Finish: Non-Holo

Japanese Topsun NormalTSN109:EN

TKRTSN109:EN-P9

Grading toolPro

TCGBerg fair value· PSA 9

$87

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

Sales evidenceLimited

Based on 10 recorded sales. Latest sale: Aug 10, 2026.

30D performance1.4%

30D: ↑ 1.4%
YTD: ↑ 41.3%
Market cap: $1.8K
Volatility: 3.4%

Last sale (Aug 10, 2026)Last sale

$72

PSA 9 · Aug 10, 2026

16.8% below TCGBerg fair value

5-sale avg

$66

last 5 sales

Population · PSA 9

graded copies

TCGBerg fair value · PSA 9

$87

30D1.4%YTD41.3%

Sales evidenceLimited

Based on 10 recorded sales. Latest sale: Aug 10, 2026.

Market cap

$1.8K

fair value x population

Population

graded copies

Last sale

$72

-16.8% vs fair

5-sale avg

$66

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 5, 202552 weekly points · 3 salesSep 27, 2026

Behind the scenes

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

Recent sales8 tracked

Most recent transactions. From public auction comps and dealer reporting. Showing 8 of 8; 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 24, 2026	PSA2	$26	ebay	-
Aug 10, 2026	PSA9	$72	fanatics_collect	15.7%
Jul 2, 2026	PSA6	$28	ebay	12.6%
Feb 20, 2026	PSA9	$70	ebay	6.4%
Feb 16, 2026	PSA9	$62	ebay	5.8%
Dec 19, 2025	PSA10	$370	ebay	3.5%
Dec 16, 2025	PSA7	$59	ebay	81.7%
Oct 14, 2025	PSA10	$870	ebay	114.1%

$26
Aug 24, 2026 · via ebay
PSA2-
$72
Aug 10, 2026 · via fanatics_collect
PSA9versus fair value, down 15.7%
$28
Jul 2, 2026 · via ebay
PSA6versus fair value, down 12.6%
$70
Feb 20, 2026 · via ebay
PSA9versus fair value, up 6.4%
$62
Feb 16, 2026 · via ebay
PSA9versus fair value, down 5.8%
$370
Dec 19, 2025 · via ebay
PSA10versus fair value, down 3.5%
$59
Dec 16, 2025 · via ebay
PSA7versus fair value, up 81.7%
$870
Oct 14, 2025 · via ebay
PSA10versus fair value, up 114.1%

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$902
1d 1.3%7d 2.0%30d 4.6%
Pop
14
Mcap
$12.6K
Evidence
Sparse
Last
$370
PSA9$87
1d 0.0%7d 1.8%30d 1.4%
Pop
21
Mcap
$1.8K
Evidence
Limited
Last
$72
PSA8$77
1d 0.0%7d 0.6%30d 9.2%
Pop
22
Mcap
$1.7K
Evidence
Sparse
Last
-


PSA10	$902	14	$12.6K	1.3%	2.0%	4.6%	3.9%	-	Sparse	$3709mo ago
PSA9	$87	21	$1.8K	0.0%	1.8%	1.4%	18.6%	-	Limited	$722mo ago
PSA8	$77	22	$1.7K	0.0%	0.6%	9.2%	14.4%	-	Sparse	-
PSA7	$68	12	$817	0.0%	3.0%	17.7%	10.0%	-	Sparse	$5910mo ago
PSA6	$44	13	$576	0.0%	8.7%	63.8%	136.6%	-	Sparse	$283mo ago

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 $44 up to gem-mint at $902. Log scale. Tap a row to switch the whole page.

Population & rarity

82 graded copies of Koffing Normal across 5 grades. The selected grade is highlighted.

PSA 10

14 · 17%

PSA 9

21 · 26%

PSA 8

22 · 27%

PSA 7

12 · 15%

PSA 6

13 · 16%

PSA 9 makes up 26% of graded copies: 21 of 82. PSA 8 is the most common grade (27%).

Relative valuation vs. index

How PSA 9 has moved relative to Japanese Topsun · Composite since Sep 13, 2026. Both indexed to 100 at the index’s inception. Card outperformed by 2.5 pp.

About Japanese TopsunParent 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

$17.14M

across all printings

This printing's share

0.1%

of total set cap

Implied printing cap

$17.5K

share × set cap

Browse all sets →

Koffing - Blue Back at PSA 10 carries a TCGBerg fair value of $902 as of 2026-09-25. We track a TCGBerg fair value across 5 grades from Japanese Topsun, from PSA 6 up to PSA 10. A graded population of 14 copies sits behind the PSA 10 grade. The PSA 10 valuation rests on sparse sales evidence. Over the past 30 days, the PSA 6 TCGBerg fair value has risen 63.8%.

Show more analysisAnalysis, commentary & FAQ

PSA 10 commentary

The TCGBerg fair value of a PSA 10 Koffing - Blue Back is $902 as of 2026-09-25. 14 copies have been graded at this level. This valuation rests on sparse sales evidence. Over the past 30 days the TCGBerg fair value has fallen 4.6%. The most recent recorded sale was $370 on 2025-12-19.

PSA 10 - frequently asked

What is the TCGBerg fair value of a PSA 10 Koffing - Blue Back?

$902 as of 2026-09-25, our model-derived fair value for a PSA 10 Koffing - Blue Back based on recent graded sales.

How rare is a PSA 10 Koffing - Blue Back?

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

How has the PSA 10 Koffing - Blue Back price moved recently?

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

Frequently asked

What is the TCGBerg fair value of a PSA 10 Koffing - Blue Back?: $902 as of 2026-09-25, our model-derived fair value for a PSA 10 Koffing - Blue Back based on recent graded sales.
How rare is a PSA 10 Koffing - Blue Back?: 14 copies have been graded at PSA 10, the graded population behind this atom.
How has the PSA 10 Koffing - Blue Back price moved recently?: Its TCGBerg fair value has fallen 4.6% over the past 30 days.

PSA 9 commentary

The TCGBerg fair value of a PSA 9 Koffing - Blue Back is $87 as of 2026-09-25. 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 1.4%. The most recent recorded sale was $72 on 2026-08-10.

PSA 9 - frequently asked

What is the TCGBerg fair value of a PSA 9 Koffing - Blue Back?

$87 as of 2026-09-25, our model-derived fair value for a PSA 9 Koffing - Blue Back based on recent graded sales.

How rare is a PSA 9 Koffing - Blue Back?

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

How has the PSA 9 Koffing - Blue Back price moved recently?

Its TCGBerg fair value has risen 1.4% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 9 Koffing - Blue Back?: $87 as of 2026-09-25, our model-derived fair value for a PSA 9 Koffing - Blue Back based on recent graded sales.
How rare is a PSA 9 Koffing - Blue Back?: 21 copies have been graded at PSA 9, the graded population behind this atom.
How has the PSA 9 Koffing - Blue Back price moved recently?: Its TCGBerg fair value has risen 1.4% over the past 30 days.

PSA 8 commentary

The TCGBerg fair value of a PSA 8 Koffing - Blue Back is $77 as of 2026-09-25. 22 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 9.2%.

PSA 8 - frequently asked

What is the TCGBerg fair value of a PSA 8 Koffing - Blue Back?

$77 as of 2026-09-25, our model-derived fair value for a PSA 8 Koffing - Blue Back based on recent graded sales.

How rare is a PSA 8 Koffing - Blue Back?

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

How has the PSA 8 Koffing - Blue Back price moved recently?

Its TCGBerg fair value has risen 9.2% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 8 Koffing - Blue Back?: $77 as of 2026-09-25, our model-derived fair value for a PSA 8 Koffing - Blue Back based on recent graded sales.
How rare is a PSA 8 Koffing - Blue Back?: 22 copies have been graded at PSA 8, the graded population behind this atom.
How has the PSA 8 Koffing - Blue Back price moved recently?: Its TCGBerg fair value has risen 9.2% over the past 30 days.

PSA 7 commentary

The TCGBerg fair value of a PSA 7 Koffing - Blue Back is $68 as of 2026-09-25. 12 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 17.7%. The most recent recorded sale was $59 on 2025-12-16.

PSA 7 - frequently asked

What is the TCGBerg fair value of a PSA 7 Koffing - Blue Back?

$68 as of 2026-09-25, our model-derived fair value for a PSA 7 Koffing - Blue Back based on recent graded sales.

How rare is a PSA 7 Koffing - Blue Back?

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

How has the PSA 7 Koffing - Blue Back price moved recently?

Its TCGBerg fair value has risen 17.7% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 7 Koffing - Blue Back?: $68 as of 2026-09-25, our model-derived fair value for a PSA 7 Koffing - Blue Back based on recent graded sales.
How rare is a PSA 7 Koffing - Blue Back?: 12 copies have been graded at PSA 7, the graded population behind this atom.
How has the PSA 7 Koffing - Blue Back price moved recently?: Its TCGBerg fair value has risen 17.7% over the past 30 days.

PSA 6 commentary

The TCGBerg fair value of a PSA 6 Koffing - Blue Back is $44 as of 2026-09-25. 13 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 63.8%. The most recent recorded sale was $28 on 2026-07-02.

PSA 6 - frequently asked

What is the TCGBerg fair value of a PSA 6 Koffing - Blue Back?

$44 as of 2026-09-25, our model-derived fair value for a PSA 6 Koffing - Blue Back based on recent graded sales.

How rare is a PSA 6 Koffing - Blue Back?

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

How has the PSA 6 Koffing - Blue Back price moved recently?

Its TCGBerg fair value has risen 63.8% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 6 Koffing - Blue Back?: $44 as of 2026-09-25, our model-derived fair value for a PSA 6 Koffing - Blue Back based on recent graded sales.
How rare is a PSA 6 Koffing - Blue Back?: 13 copies have been graded at PSA 6, the graded population behind this atom.
How has the PSA 6 Koffing - Blue Back price moved recently?: Its TCGBerg fair value has risen 63.8% over the past 30 days.

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

Printings of Koffing

NormalviewingKoffing - Blue Back
NormalKoffing - Green Back$318
NormalKoffing - No Number Blue Back$6,440

Indices containing this card

Parent set

Japanese Topsun

Set total cap

$7.18M

Date

Grade

Price

Source

vs TCGBerg FV

Aug 24, 2026

PSA2

$26

ebay

Aug 10, 2026

PSA9

$72

fanatics_collect

15.7%

Jul 2, 2026

PSA6

$28

ebay

12.6%

Feb 20, 2026

PSA9

$70

ebay

6.4%

Feb 16, 2026

PSA9

$62

ebay

5.8%

Dec 19, 2025

PSA10

$370

ebay

3.5%

Dec 16, 2025

PSA7

$59

ebay

81.7%

Oct 14, 2025

PSA10

$870

ebay

114.1%

PSA10

$902

$12.6K

1.3%

2.0%

4.6%

Sparse

$3709mo ago

PSA9

$87

$1.8K

0.0%

1.8%

1.4%

Limited

$722mo ago

PSA8

$77

$1.7K

0.0%

0.6%

9.2%

Sparse

PSA7

$68

$817

0.0%

3.0%

17.7%

Sparse

$5910mo ago

PSA6

$44

$576

0.0%

8.7%

63.8%

Sparse

$283mo ago

Koffing #109, Normal, Japanese Topsun

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 sales8 tracked

All grades matrix

Population & rarityHow Koffing'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 Sep 13, 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 Japanese TopsunParent 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

Printings of Koffing

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 sales8 tracked

All grades matrix

Population & rarityHow Koffing'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 Sep 13, 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 Japanese TopsunParent 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

Printings of Koffing

Indices containing this card

Parent set

Behind the scenes

Population & rarity

Relative valuation vs. index

Behind the scenes

Population & rarity

Relative valuation vs. index