Koffing #39, Normal, Bulbasaur Deck
Japanese edition
- Card number: #39
- ·Rarity: Promo
- ·Finish: Promo
A PSA 9 Koffing #39 Normal from Bulbasaur Deck has a TCGBerg fair value of $151 as of Nov 15, 2026. TCGBerg has recorded 20 PSA 9 sales of this card, the latest on Nov 1, 2026. PSA has graded 156 copies at PSA 9.
TCGBerg Algorithm (estimated from recorded sales).
- Population · PSA 9
- 156
- Market cap
- $23.6K
- Volatility
- 16.4%
- YTD
- ↑ 279.9%
- Sales evidence
- Moderate
TCGBerg fair value · PSA 9
$151
Price history
Weekly fair value over time, plus a confidence band around it: how precisely we can pin the value, which tightens as more sales confirm it. Dots mark individual sales, snapped to their week: red when above fair value (a premium), green when below (a deal), hollow when flagged as an outlier. Switch the active grade with the selector above.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. Confidence band: how precisely we can pin the fair value. It widens when sales scatter and narrows as more sales back the value up. The dots show the actual sale prices.
What the evidence says
The last PSA 9 sale, $200 on Nov 1, 2026, sits 32.0% above the $151 fair value. The value weighs 20 PSA 9 sales from the past year, not the latest one alone. The latest sale ran above the recent run: the last 5 PSA 9 sales averaged $148, within 2.1% of the value. Its confidence band runs from $136 to $167. A PSA 10 ($633) is worth 4.2 times a PSA 9 ($151). Over the past 30 days the PSA 9 value has risen 35.8%.
TCGBerg fair value by grade
Side-by-side comparison of value across every grade and ungraded condition we track for this printing. The bar chart uses a log scale so raw and gem-mint fit on one axis. Solid bars are the TCGBerg fair value, modelled from recorded sales. Hatched bars are the latest market price instead, shown for ungraded conditions that trade too rarely for us to price one honestly.Value at each grade and ungraded condition. Log scale. Tap a row to switch the whole page.
Behind the scenes
How the published fair value for this grade was produced: the sales it rests on, how they were put together, and every recorded change afterwards. It describes one saved calculation, not a live recomputation.What goes into this price, and how much we know.
Recent sales
20 trackedEach sale against the grade's fair value on the day it sold.
| Date | Grade | Venue | Price | vs fair value |
|---|---|---|---|---|
| Nov 7, 2026 | PSA10 | eBay | $699 | above fair value by +20.4% |
| Nov 7, 2026 | PSA10 | eBay | $875 | above fair value by +50.7% |
| Nov 1, 2026 | PSA9 | eBay | $200 | above fair value by +81.3% |
| Nov 1, 2026 | PSA9 | eBay | $163 | above fair value by +47.3% |
| Oct 24, 2026 | PSA10 | eBay | $593 | above fair value by +3.0% |
- $699Nov 7, 2026 · via eBayPSA10↑above fair value by 20.4%
- $875Nov 7, 2026 · via eBayPSA10↑above fair value by 50.7%
- $200Nov 1, 2026 · via eBayPSA9↑above fair value by 81.3%
- $163Nov 1, 2026 · via eBayPSA9↑above fair value by 47.3%
- $593Oct 24, 2026 · via eBayPSA10↑above fair value by 3.0%
| Oct 15, 2026 | PSA9 | eBay | $105 | below fair value by -4.0% |
| Oct 12, 2026 | PSA9 | eBay | $160 | above fair value by +46.1% |
| Oct 9, 2026 | PSA10 | eBay | $495 | below fair value by -8.6% |
- $105PSA9↓below fair value by 4.0%
- $160PSA9↑above fair value by 46.1%
- $495PSA10↓below fair value by 8.6%
15 more sales with Pro
Up to 20 recent sales, each with its venue and its gap to fair value.
↓Includes a sale 18.3% below fair value
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.
- CGC9.5$161d -7d -30d -
- Pop
- -
- Mcap
- -
- Evidence
- Sparse
- Last
- $16
- PSA10$6331d ↓0.1%7d ↑8.7%30d ↑12.3%
- Pop
- 95
- Mcap
- $60.2K
- Evidence
- Moderate
- Last
- $699
- PSA9$1511d ↓0.3%7d ↓2.6%30d ↑35.8%
- Pop
- 156
- Mcap
- $23.6K
- Evidence
- Moderate
- Last
- $200
| CGC9.5 | $16 | - | - | - | - | - | - | Sparse | $161y ago |
| PSA10 | $633 | 95 | $60.2K | ↓down 0.1% | ↑up 8.7% | ↑up 12.3% | ↑up 27.8% | Moderate | $6991w ago |
| PSA9 | $151 | 156 | $23.6K | ↓down 0.3% | ↓down 2.6% | ↑up 35.8% | ↑up 74.0% | Moderate | $2002w ago |
| PSA8 | $60 | 46 | $2.8K | ↑up 0.9% | ↑up 2.3% | ↑up 6.2% | ↑up 28.5% | Limited | $552mo ago |
| PSA7 | $46 | 8 | $365 | 0.0% | 0.0% | ↓down 2.2% | ↑up 33.9% | Limited | $531mo ago |
| PSA6 | $45 | 3 | $136 | 0.0% | 0.0% | ↓down 2.5% | ↑up 33.6% | Sparse | $515mo ago |
| PSA5 | $45 | 3 | - | 0.0% | 0.0% | ↓down 2.5% | ↑up 33.6% | Sparse | - |
Graded population report
How 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. These are recorded graded copies, not the total print run. A smaller population alone does not establish a price premium.313 graded copies of Koffing Normal across 7 grades. The selected grade is highlighted.
PSA 9 makes up 50% of graded copies: 156 of 313. It’s the most common grade for this card.
Analysis
Koffing at PSA 10 carries a TCGBerg fair value of $633 as of 2026-11-14. We track a TCGBerg fair value across 7 grades from Bulbasaur Deck, from CGC 9.5 up to PSA 10. A graded population of 95 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 12.3%.