Gastly #50, 1999-2000 Copyright, Base Set
- Card number: #50/102
- ·Rarity: Common
- ·Finish: Non-Holo
A PSA 10 Gastly #50 1999-2000 Copyright from Base Set has a TCGBerg fair value of $219 as of Nov 14, 2026. TCGBerg has recorded 15 PSA 10 sales of this card, the latest on Oct 4, 2026. PSA has graded 91 copies at PSA 10.
TCGBerg Algorithm (estimated from recorded sales).
- Population · PSA 10
- 91
- Market cap
- $19.9K
- Volatility
- 0.8%
- YTD
- ↑ 110.2%
- Sales evidence
- Moderate
TCGBerg fair value · PSA 10
$219
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 last PSA 10 sale, $291 on Oct 4, 2026, sits 32.9% above the $219 fair value. The value weighs 15 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 $198, within 9.5% of the value. Its confidence band runs from $203 to $235. A PSA 10 ($219) is worth 4.3 times a PSA 9 ($51). Over the past 30 days the PSA 10 value has risen 0.0%.
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 |
|---|---|---|---|---|
| Oct 31, 2026 | PSA9 | eBay | $55 | above fair value by +7.4% |
| Oct 22, 2026 | PSA8 | eBay | $30 | at fair value by 0.0% |
| Oct 20, 2026 | PSA9 | eBay | $57 | above fair value by +17.3% |
| Oct 4, 2026 | PSA10 | eBay | $291 | above fair value by +33.9% |
| Oct 1, 2026 | PSA10 | eBay | $146 | below fair value by -33.0% |
- $55Oct 31, 2026 · via eBayPSA9↑above fair value by 7.4%
- $30Oct 22, 2026 · via eBayPSA8·at fair value by 0.0%
- $57Oct 20, 2026 · via eBayPSA9↑above fair value by 17.3%
- $291Oct 4, 2026 · via eBayPSA10↑above fair value by 33.9%
- $146Oct 1, 2026 · via eBayPSA10↓below fair value by 33.0%
| Sep 12, 2026 | PSA7 | eBay | $30 | above fair value by +13.9% |
| Sep 4, 2026 | PSA8 | eBay | $23 | below fair value by -7.6% |
| Aug 27, 2026 | PSA10 | eBay | $214 | above fair value by +10.6% |
- $30PSA7↑above fair value by 13.9%
- $23PSA8↓below fair value by 7.6%
- $214PSA10↑above fair value by 10.6%
15 more sales with Pro
Up to 20 recent sales, each with its venue and its gap to fair value.
↓Includes a sale 25.8% 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.
- CGC6$151d ↓7.3%7d ↓7.3%30d ↓7.3%
- Pop
- 4
- Mcap
- -
- Evidence
- Sparse
- Last
- -
- PSA10$2191d ·0.0%7d ↑0.4%30d ·0.0%
- Pop
- 91
- Mcap
- $19.9K
- Evidence
- Moderate
- Last
- $291
- PSA9$511d ↓0.1%7d ·0.0%30d ↑58.0%
- Pop
- 110
- Mcap
- $5.6K
- Evidence
- Strong
- Last
- $55
| CGC6 | $15 | 4 | - | ↓down 7.3% | ↓down 7.3% | ↓down 7.3% | ↓down 15.9% | Sparse | - |
| PSA10 | $219 | 91 | $19.9K | 0.0% | ↑up 0.4% | 0.0% | ↑up 41.0% | Moderate | $2911mo ago |
| PSA9 | $51 | 110 | $5.6K | ↓down 0.1% | 0.0% | ↑up 58.0% | ↑up 56.3% | Strong | $552w ago |
| PSA8 | $30 | 25 | $756 | ↑up 0.1% | ↑up 0.7% | ↑up 3.5% | ↓down 1.6% | Strong | $303w ago |
| PSA7 | $27 | 11 | $300 | 0.0% | ↑up 0.3% | ↓down 0.6% | ↑up 3.9% | Limited | $302mo ago |
| PSA6 | $24 | 2 | $47 | 0.0% | 0.0% | ↓down 13.2% | ↓down 10.2% | Sparse | - |
| PSA5 | $18 | 2 | - | 0.0% | 0.0% | ↓down 16.9% | ↓down 29.9% | Sparse | - |
Graded population report
How Gastly'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.351 graded copies of Gastly 1999-2000 Copyright across 23 grades. The selected grade is highlighted.
PSA 10 makes up 26% of graded copies: 91 of 351. PSA 9 is the most common grade (31%).
Analysis
Gastly - 1999-2000 Copyright Normal at PSA 10 carries a TCGBerg fair value of $219 as of 2026-11-13. We track a TCGBerg fair value across 7 grades from Base Set, from CGC 6 up to PSA 10. A graded population of 91 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 0.0%.