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 $187 as of Nov 14, 2026. It rests on 17 recorded sales, the latest on Sep 9, 2026. PSA has graded 36 copies at PSA 9. Sales evidence is sparse, so treat this value as a rough estimate.
TCGBerg Algorithm (estimated from recorded sales).
17 sales · latest Sep 9, 2026
- Population · PSA 9
- 36
- Market cap
- $6.7K
- Volatility
- 3.5%
- YTD
- ↑ 149.9%
- Sales evidence
- Sparse
TCGBerg fair value · PSA 9
$187
Based on 17 recorded sales. Latest sale: Sep 9, 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, $200 on Sep 9, 2026, sits 6.9% above the $187 fair value. The value rests on 17 recorded PSA 9 sales. Its confidence band runs from $170 to $204. A PSA 10 ($1,159) is worth 6.2 times a PSA 9 ($187). Over the past 30 days the PSA 9 value has risen 8.9%. With sparse 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
16 trackedEach sale against the grade's fair value on the day it sold.
| Date | Grade | Venue | Price | vs fair value |
|---|---|---|---|---|
| Oct 24, 2026 | PSA6 | eBay | $27 | below fair value by -21.7% |
| Oct 19, 2026 | PSA8 | eBay | $150 | above fair value by +28.5% |
| Oct 19, 2026 | PSA10 | Goldin | $1,048 | below fair value by -8.0% |
| Oct 19, 2026 | PSA3 | eBay | $40 | - |
| Oct 13, 2026 | PSA8 | eBay | $140 | above fair value by +61.3% |
- $27Oct 24, 2026 · via eBayPSA6↓below fair value by 21.7%
- $150Oct 19, 2026 · via eBayPSA8↑above fair value by 28.5%
- $1,048Oct 19, 2026 · via GoldinPSA10↓below fair value by 8.0%
- $40Oct 19, 2026 · via eBayPSA3-
- $140Oct 13, 2026 · via eBayPSA8↑above fair value by 61.3%
| Sep 30, 2026 | PSA3 | eBay | $50 | - |
| Sep 9, 2026 | PSA6 | eBay | $51 | above fair value by +8.9% |
| Sep 9, 2026 | PSA9 | eBay | $200 | above fair value by +26.6% |
- $50PSA3-
- $51PSA6↑above fair value by 8.9%
- $200PSA9↑above fair value by 26.6%
11 more sales with Pro
Up to 20 recent sales, each with its venue and its gap to fair value.
↓Includes a sale 5.6% 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$1,1591d ·0.0%7d ↑0.7%30d ↓10.1%
- Pop
- 12
- Mcap
- $13.9K
- Evidence
- Sparse
- Last
- $1,048
- PSA9$1871d ·0.0%7d ↑0.8%30d ↑8.9%
- Pop
- 36
- Mcap
- $6.7K
- Evidence
- Sparse
- Last
- $200
- PSA8$1171d ·0.0%7d ↓0.1%30d ↑33.7%
- Pop
- 34
- Mcap
- $4.0K
- Evidence
- Limited
- Last
- $150
| PSA10 | $1,159 | 12 | $13.9K | 0.0% | ↑up 0.7% | ↓down 10.1% | ↑up 10.7% | Sparse | $1,0484w ago |
| PSA9 | $187 | 36 | $6.7K | 0.0% | ↑up 0.8% | ↑up 8.9% | ↑up 55.9% | Sparse | $2002mo ago |
| PSA8 | $117 | 34 | $4.0K | 0.0% | ↓down 0.1% | ↑up 33.7% | ↑up 64.4% | Limited | $1504w ago |
| PSA7 | $52 | 9 | $466 | 0.0% | 0.0% | ↓down 6.4% | ↓down 5.4% | Sparse | $506mo ago |
| PSA6 | $36 | 15 | $534 | 0.0% | ↑up 0.1% | ↓down 24.4% | ↓down 12.2% | Moderate | $273w ago |
| PSA5 | $36 | 7 | - | 0.0% | ↑up 0.1% | ↓down 15.9% | ↓down 6.3% | Sparse | $162y 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.113 graded copies of Porygon Normal across 6 grades. The selected grade is highlighted.
PSA 9 makes up 32% of graded copies: 36 of 113. It’s the most common grade for this card.
Analysis
Porygon - Blue Back at PSA 10 carries a TCGBerg fair value of $1,159 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 10.1%.