Porygon #137, Normal, Japanese Topsun
Japanese edition
- Card number: #137
- ·Rarity: Common
- ·Finish: Non-Holo
A PSA 9 Porygon #137 Normal from Japanese Topsun has a TCGBerg fair value of $107 as of Nov 15, 2026. It rests on 9 recorded sales, the latest on Sep 12, 2026. PSA has graded 26 copies at PSA 9. Sales evidence is limited, so treat this value as a rough estimate.
TCGBerg Algorithm (estimated from recorded sales).
9 sales · latest Sep 12, 2026
- Population · PSA 9
- 26
- Market cap
- $2.8K
- Volatility
- 2.2%
- YTD
- ↑ 86.2%
- Sales evidence
- Limited
TCGBerg fair value · PSA 9
$107
Based on 9 recorded sales. Latest sale: Sep 12, 2026.
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, $100 on Sep 12, 2026, sits 6.6% below the $107 fair value. The value rests on 9 recorded PSA 9 sales. Its confidence band runs from $97 to $117. A PSA 10 ($763) is worth 7.1 times a PSA 9 ($107). Over the past 30 days the PSA 9 value has risen 6.4%. With limited sales evidence, read the gap and the band as rough guides.
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
13 trackedEach sale against the grade's fair value on the day it sold.
| Date | Grade | Venue | Price | vs fair value |
|---|---|---|---|---|
| Sep 12, 2026 | PSA9 | eBay | $100 | above fair value by +11.1% |
| Jun 28, 2026 | PSA10 | eBay | $532 | below fair value by -3.4% |
| May 31, 2026 | PSA9 | eBay | $56 | below fair value by -8.9% |
| May 24, 2026 | PSA6 | eBay | $21 | below fair value by -18.2% |
| May 24, 2026 | PSA8 | eBay | $37 | below fair value by -11.6% |
- $100Sep 12, 2026 · via eBayPSA9↑above fair value by 11.1%
- $532Jun 28, 2026 · via eBayPSA10↓below fair value by 3.4%
- $56May 31, 2026 · via eBayPSA9↓below fair value by 8.9%
- $21May 24, 2026 · via eBayPSA6↓below fair value by 18.2%
- $37May 24, 2026 · via eBayPSA8↓below fair value by 11.6%
| May 4, 2026 | PSA8 | eBay | $60 | above fair value by +25.1% |
| Apr 23, 2026 | PSA9 | eBay | $64 | below fair value by -4.6% |
| Apr 8, 2026 | PSA9 | eBay | $80 | above fair value by +12.1% |
- $60PSA8↑above fair value by 25.1%
- $64PSA9↓below fair value by 4.6%
- $80PSA9↑above fair value by 12.1%
8 more sales with Pro
Up to 20 recent sales, each with its venue and its gap to fair value.
↓Includes a sale 26.0% 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.
- PSA10$7631d ·0.0%7d ↓0.5%30d ↓4.5%
- Pop
- 12
- Mcap
- $9.2K
- Evidence
- Sparse
- Last
- $532
- PSA9$1071d ·0.0%7d ↑0.8%30d ↑6.4%
- Pop
- 26
- Mcap
- $2.8K
- Evidence
- Limited
- Last
- $100
- PSA8$551d ·0.0%7d ↓0.7%30d ↓1.6%
- Pop
- 12
- Mcap
- $655
- Evidence
- Limited
- Last
- $37
| PSA10 | $763 | 12 | $9.2K | 0.0% | ↓down 0.5% | ↓down 4.5% | ↑up 34.0% | Sparse | $5325mo ago |
| PSA9 | $107 | 26 | $2.8K | 0.0% | ↑up 0.8% | ↑up 6.4% | ↑up 47.2% | Limited | $1002mo ago |
| PSA8 | $55 | 12 | $655 | 0.0% | ↓down 0.7% | ↓down 1.6% | ↑up 13.9% | Limited | $376mo ago |
| PSA7 | $53 | 15 | $801 | 0.0% | ↑up 0.3% | ↓down 0.8% | ↑up 18.7% | Limited | $4011mo ago |
| PSA6 | $35 | 9 | $318 | ↓down 0.1% | 0.0% | ↑up 0.6% | ↑up 18.1% | Sparse | $216mo ago |
| PSA5 | $35 | 12 | - | ↓down 0.1% | 0.0% | ↑up 0.6% | ↑up 18.1% | Limited | $208mo ago |
PSA population report
How Porygon'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.86 graded copies of Porygon Normal across 6 grades. The selected grade is highlighted.
PSA 9 makes up 30% of graded copies: 26 of 86. It’s the most common grade for this card.
Analysis
Porygon - Green Back at PSA 10 carries a TCGBerg fair value of $763 as of 2026-11-14. We track a TCGBerg fair value across 6 grades from Japanese Topsun, from PSA 6 up to PSA 10. A graded population of 12 copies sits behind the PSA 10 grade. The PSA 10 valuation rests on sparse sales evidence. Over the past 30 days, the PSA 10 TCGBerg fair value has fallen 4.5%.