Arbok #31, 1st Edition, Fossil
- FOS

- ·Card number: #31/62
- ·Rarity: Uncommon
- ·Finish: Non-Holo
A PSA 10 Arbok #31 1st Edition from Fossil has a TCGBerg fair value of $333 as of Nov 15, 2026. TCGBerg has recorded 45 PSA 10 sales of this card, the latest on Oct 19, 2026. PSA has graded 416 copies at PSA 10.
TCGBerg Algorithm (estimated from recorded sales).
- Population · PSA 10
- 416
- Market cap
- $138.4K
- Volatility
- 2.4%
- YTD
- ↑ 83.4%
- Sales evidence
- Strong
TCGBerg fair value · PSA 10
$333
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 10. 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 latest recorded PSA 10 sale ($554 on Oct 19, 2026) sits 66.5% above the $333 fair value, too far off to read as this grade's price. The value weighs 29 PSA 10 sales from the past year, not the latest one alone. The latest sale ran above the recent run: the last 5 PSA 10 sales averaged $364, within 9.5% of the value. Its confidence band runs from $316 to $350. A PSA 10 ($333) is worth 5.5 times a PSA 9 ($60). Over the past 30 days the PSA 10 value has risen 5.5%.
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.
- Raw NM$4.33Ungraded · TCGBerg fair value
- Raw LP$2.32Ungraded · TCGBerg fair value
- Raw MP$1.44Ungraded · TCGBerg fair value
- Raw HP$1.17Ungraded · TCGBerg fair value
- Raw Damaged$0.84Ungraded · TCGBerg fair value
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 11, 2026 | Raw | tcgplayer | $4.62 | above fair value by +6.7% |
| Nov 10, 2026 | PSA8 | eBay | $38 | above fair value by +9.6% |
| Nov 9, 2026 | PSA8 | eBay | $14 | below fair value by -61.1% |
| Nov 9, 2026 | PSA8 | eBay | $52 | above fair value by +49.9% |
| Nov 9, 2026 | PSA9 | eBay | $61 | above fair value by +0.9% |
- $4.62Nov 11, 2026 · via tcgplayerRaw↑above fair value by 6.7%
- $38Nov 10, 2026 · via eBayPSA8↑above fair value by 9.6%
- $14Nov 9, 2026 · via eBayPSA8↓below fair value by 61.1%
- $52Nov 9, 2026 · via eBayPSA8↑above fair value by 49.9%
- $61Nov 9, 2026 · via eBayPSA9↑above fair value by 0.9%
| Nov 7, 2026 | PSA8 | eBay | $50 | above fair value by +45.5% |
| Nov 6, 2026 | PSA8 | eBay | $19 | below fair value by -46.1% |
| Nov 6, 2026 | PSA9 | eBay | $55 | below fair value by -6.4% |
- $50PSA8↑above fair value by 45.5%
- $19PSA8↓below fair value by 46.1%
- $55PSA9↓below fair value by 6.4%
15 more sales with Pro
Up to 20 recent sales, each with its venue and its gap to fair value.
↓Includes a sale 46.1% 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.
- CGC Gem Mint 10$501d ↓1.8%7d ↓2.1%30d ↓15.1%
- Pop
- 149
- Mcap
- $7.5K
- Evidence
- Strong
- Last
- $42
- CGC9.5$311d ↓1.1%7d ↓1.1%30d ↑39.6%
- Pop
- 25
- Mcap
- $777
- Evidence
- Limited
- Last
- $40
- PSA10$3331d ↓0.7%7d ↓1.0%30d ↑5.5%
- Pop
- 416
- Mcap
- $138.4K
- Evidence
- Strong
- Last
- $554
| Listings | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| CGC Gem Mint 10 | $50 | 149 | $7.5K | ↓down 1.8% | ↓down 2.1% | ↓down 15.1% | ↓down 17.9% | Strong | $422w ago | |
| CGC9.5 | $31 | 25 | $777 | ↓down 1.1% | ↓down 1.1% | ↑up 39.6% | ↑up 10.4% | Limited | $405mo ago | |
| PSA10 | $333 | 416 | $138.4K | ↓down 0.7% | ↓down 1.0% | ↑up 5.5% | ↑up 34.1% | Strong | $5544w ago | |
| PSA9 | $60 | 860 | $52.0K | ↑up 0.4% | ↑up 2.8% | ↑up 20.6% | ↑up 28.1% | Very strong | $616d ago | |
| PSA8 | $35 | 505 | $17.5K | ↓down 2.6% | ↑up 0.5% | ↑up 20.1% | ↑up 22.5% | Very strong | $385d ago | |
| PSA7 | $24 | 180 | $4.3K | ↓down 0.1% | ↓down 0.4% | ↑up 7.9% | ↓down 2.2% | Very strong | $252w ago | |
| PSA6 | $21 | 79 | $1.7K | 0.0% | ↑up 1.4% | ↑up 9.7% | ↑up 28.6% | Moderate | $301mo ago | |
| PSA5 | $21 | 47 | - | 0.0% | ↑up 0.1% | ↑up 44.7% | ↑up 23.3% | Limited | $251mo ago | |
| PSA4 | $16 | 18 | - | 0.0% | ↓down 14.0% | ↑up 15.3% | ↓down 1.7% | Sparse | $176mo ago | |
| PSA3 | $5.00 | 7 | - | 0.0% | 0.0% | 0.0% | 0.0% | Sparse | $5.002y ago | |
| Raw | $4.33 | - | - | - | ↑up 3.1% | ↓down 9.2% | - | Very strong | $4.624d ago |
Graded population report
How Arbok'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.3,123 graded copies of Arbok 1st Edition across 35 grades. The selected grade is highlighted.
PSA 10 makes up 13% of graded copies: 416 of 3,123. PSA 9 is the most common grade (28%).
Analysis
Arbok - 1st Edition Normal at PSA 10 carries a TCGBerg fair value of $333 as of 2026-11-14. We track a TCGBerg fair value across 10 grades from Fossil, from PSA 3 up to PSA 10. A graded population of 416 copies sits behind the PSA 10 grade. The PSA 10 valuation rests on strong sales evidence. Over the past 30 days, the PSA 10 TCGBerg fair value has risen 5.5%.
