Pocket Monsters Carddass 1997 · Normal

Koffing #109, Normal, Pocket Monsters Carddass 1997

Japanese edition

Card number: #109
Finish: Non-Holo

Pocket Monsters Carddass 1997 NormalCD7109:JA

TKRCD7109:JA-P9

Grading toolPro

TCGBerg fair value· PSA 9

$63

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

Sales evidenceLimited

Based on 19 recorded sales. Latest sale: Sep 20, 2026.

30D performance12.6%

30D: ↓ 12.6%
YTD: ↑ 102.8%
Market cap: $2.9K
Volatility: 6.3%

Last sale (Sep 20, 2026)Last sale

$60

PSA 9 · Sep 20, 2026

4.2% below TCGBerg fair value

5-sale avg

$70

last 5 sales

Population · PSA 9

graded copies

TCGBerg fair value · PSA 9

$63

30D12.6%YTD102.8%

Sales evidenceLimited

Based on 19 recorded sales. Latest sale: Sep 20, 2026.

Market cap

$2.9K

fair value x population

Population

graded copies

Last sale

$60

-4.2% vs fair

5-sale avg

$70

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 · 7 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 20, 2026	PSA9	$60	ebay	4.5%
Sep 11, 2026	PSA9	$69	ebay	5.8%
Sep 11, 2026	PSA10	$915	ebay	209.1%
Jul 19, 2026	PSA10	$442	ebay	290.4%
May 14, 2026	PSA9	$57	ebay	8.1%
Apr 12, 2026	PSA9	$100	ebay	60.7%
Mar 31, 2026	PSA9	$62	ebay	3.8%
Jan 17, 2026	PSA9	$60	ebay	30.9%
Jan 14, 2026	PSA6	$13	ebay	22.1%
Jan 6, 2026	PSA6	$20	ebay	5.5%

$60
Sep 20, 2026 · via ebay
PSA9versus fair value, down 4.5%
$69
Sep 11, 2026 · via ebay
PSA9versus fair value, up 5.8%
$915
Sep 11, 2026 · via ebay
PSA10versus fair value, up 209.1%
$442
Jul 19, 2026 · via ebay
PSA10versus fair value, up 290.4%
$57
May 14, 2026 · via ebay
PSA9versus fair value, down 8.1%
$100
Apr 12, 2026 · via ebay
PSA9versus fair value, up 60.7%
$62
Mar 31, 2026 · via ebay
PSA9versus fair value, up 3.8%
$60
Jan 17, 2026 · via ebay
PSA9versus fair value, up 30.9%
$13
Jan 14, 2026 · via ebay
PSA6versus fair value, down 22.1%
$20
Jan 6, 2026 · via ebay
PSA6versus fair value, up 5.5%

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$296
1d 0.0%7d 0.0%30d 179.1%
Pop
23
Mcap
$6.8K
Evidence
Moderate
Last
$915
PSA9$63
1d 0.0%7d 0.3%30d 12.6%
Pop
46
Mcap
$2.9K
Evidence
Limited
Last
$60
PSA8$52
1d 0.0%7d 0.7%30d 2.4%
Pop
29
Mcap
$1.5K
Evidence
Limited
Last
$31


PSA10	$296	23	$6.8K	0.0%	0.0%	179.1%	186.4%	-	Moderate	$9152w ago
PSA9	$63	46	$2.9K	0.0%	0.3%	12.6%	9.4%	-	Limited	$601w ago
PSA8	$52	29	$1.5K	0.0%	0.7%	2.4%	9.4%	-	Limited	$3111mo ago
PSA7	$23	21	$480	16.6%	7.0%	10.6%	37.7%	-	Sparse	$1812mo ago
PSA6	$22	12	$267	1.5%	2.5%	10.4%	34.2%	-	Limited	$139mo 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 $22 up to gem-mint at $296. Log scale. Tap a row to switch the whole page.

Population & rarity

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

PSA 10

23 · 18%

PSA 9

46 · 35%

PSA 8

29 · 22%

PSA 7

21 · 16%

PSA 6

12 · 9.2%

PSA 9 makes up 35% of graded copies: 46 of 131. It’s the most common grade for this card.

Relative valuation vs. index

How PSA 9 has moved relative to Pocket Monsters Carddass 1997 · Normal · Composite since May 17, 2026. Both indexed to 100 at the index’s inception. Card underperformed by 58.3 pp.

About Pocket Monsters Carddass 1997Parent 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

$14.09M

across all printings

This printing's share

0.1%

of total set cap

Implied printing cap

$11.9K

share × set cap

Browse all sets →

Koffing at PSA 10 carries a TCGBerg fair value of $296 as of 2026-09-27. We track a TCGBerg fair value across 5 grades from Pocket Monsters Carddass 1997, from PSA 6 up to PSA 10. A graded population of 23 copies sits behind the PSA 10 grade. The PSA 10 valuation rests on moderate sales evidence. Over the past 30 days, the PSA 10 TCGBerg fair value has risen 179.1%.

Show more analysisAnalysis, commentary & FAQ

PSA 10 commentary

The TCGBerg fair value of a PSA 10 Koffing is $296 as of 2026-09-27. 23 copies have been graded at this level. This valuation rests on moderate sales evidence. Over the past 30 days the TCGBerg fair value has risen 179.1%.

PSA 10 - frequently asked

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

$296 as of 2026-09-27, our model-derived fair value for a PSA 10 Koffing based on recent graded sales.

How rare is a PSA 10 Koffing?

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

How has the PSA 10 Koffing price moved recently?

Its TCGBerg fair value has risen 179.1% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 10 Koffing?: $296 as of 2026-09-27, our model-derived fair value for a PSA 10 Koffing based on recent graded sales.
How rare is a PSA 10 Koffing?: 23 copies have been graded at PSA 10, the graded population behind this atom.
How has the PSA 10 Koffing price moved recently?: Its TCGBerg fair value has risen 179.1% over the past 30 days.

PSA 9 commentary

The TCGBerg fair value of a PSA 9 Koffing is $63 as of 2026-09-27. 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 fallen 12.6%. The most recent recorded sale was $60 on 2026-09-20.

PSA 9 - frequently asked

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

$63 as of 2026-09-27, our model-derived fair value for a PSA 9 Koffing based on recent graded sales.

How rare is a PSA 9 Koffing?

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

How has the PSA 9 Koffing price moved recently?

Its TCGBerg fair value has fallen 12.6% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 9 Koffing?: $63 as of 2026-09-27, our model-derived fair value for a PSA 9 Koffing based on recent graded sales.
How rare is a PSA 9 Koffing?: 46 copies have been graded at PSA 9, the graded population behind this atom.
How has the PSA 9 Koffing price moved recently?: Its TCGBerg fair value has fallen 12.6% over the past 30 days.

PSA 8 commentary

The TCGBerg fair value of a PSA 8 Koffing is $52 as of 2026-09-27. 29 copies have been graded at this level. This valuation rests on limited sales evidence. Over the past 30 days the TCGBerg fair value has fallen 2.4%. The most recent recorded sale was $31 on 2025-11-17.

PSA 8 - frequently asked

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

$52 as of 2026-09-27, our model-derived fair value for a PSA 8 Koffing based on recent graded sales.

How rare is a PSA 8 Koffing?

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

How has the PSA 8 Koffing price moved recently?

Its TCGBerg fair value has fallen 2.4% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 8 Koffing?: $52 as of 2026-09-27, our model-derived fair value for a PSA 8 Koffing based on recent graded sales.
How rare is a PSA 8 Koffing?: 29 copies have been graded at PSA 8, the graded population behind this atom.
How has the PSA 8 Koffing price moved recently?: Its TCGBerg fair value has fallen 2.4% over the past 30 days.

PSA 7 commentary

The TCGBerg fair value of a PSA 7 Koffing is $23 as of 2026-09-27. 21 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 10.6%. The most recent recorded sale was $18 on 2025-09-29.

PSA 7 - frequently asked

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

$23 as of 2026-09-27, our model-derived fair value for a PSA 7 Koffing based on recent graded sales.

How rare is a PSA 7 Koffing?

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

How has the PSA 7 Koffing price moved recently?

Its TCGBerg fair value has fallen 10.6% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 7 Koffing?: $23 as of 2026-09-27, our model-derived fair value for a PSA 7 Koffing based on recent graded sales.
How rare is a PSA 7 Koffing?: 21 copies have been graded at PSA 7, the graded population behind this atom.
How has the PSA 7 Koffing price moved recently?: Its TCGBerg fair value has fallen 10.6% over the past 30 days.

PSA 6 commentary

The TCGBerg fair value of a PSA 6 Koffing is $22 as of 2026-09-27. 12 copies have been graded at this level. This valuation rests on limited sales evidence. Over the past 30 days the TCGBerg fair value has fallen 10.4%. The most recent recorded sale was $12 on 2026-01-14.

PSA 6 - frequently asked

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

$22 as of 2026-09-27, our model-derived fair value for a PSA 6 Koffing based on recent graded sales.

How rare is a PSA 6 Koffing?

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

How has the PSA 6 Koffing price moved recently?

Its TCGBerg fair value has fallen 10.4% over the past 30 days.

Frequently asked

What is the TCGBerg fair value of a PSA 6 Koffing?: $22 as of 2026-09-27, our model-derived fair value for a PSA 6 Koffing based on recent graded sales.
How rare is a PSA 6 Koffing?: 12 copies have been graded at PSA 6, the graded population behind this atom.
How has the PSA 6 Koffing price moved recently?: Its TCGBerg fair value has fallen 10.4% over the past 30 days.

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

Indices containing this card

Parent set

Pocket Monsters Carddass 1997

Set total cap

$8.35M

Date

Grade

Price

Source

vs TCGBerg FV

Sep 20, 2026

PSA9

$60

ebay

4.5%

Sep 11, 2026

PSA9

$69

ebay

5.8%

Sep 11, 2026

PSA10

$915

ebay

209.1%

Jul 19, 2026

PSA10

$442

ebay

290.4%

May 14, 2026

PSA9

$57

ebay

8.1%

Apr 12, 2026

PSA9

$100

ebay

60.7%

Mar 31, 2026

PSA9

$62

ebay

3.8%

Jan 17, 2026

PSA9

$60

ebay

30.9%

Jan 14, 2026

PSA6

$13

ebay

22.1%

Jan 6, 2026

PSA6

$20

ebay

5.5%

PSA10

$296

$6.8K

0.0%

179.1%

Moderate

$9152w ago

PSA9

$63

$2.9K

0.0%

0.3%

12.6%

Limited

$601w ago

PSA8

$52

$1.5K

0.0%

0.7%

2.4%

Limited

$3111mo ago

PSA7

$23

$480

16.6%

7.0%

10.6%

Sparse

$1812mo ago

PSA6

$22

$267

1.5%

2.5%

10.4%

Limited

$139mo ago

Koffing #109, Normal, Pocket Monsters Carddass 1997

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 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 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 Pocket Monsters Carddass 1997Parent 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 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 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 Pocket Monsters Carddass 1997Parent 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