Mewtwo #20, Reverse Holo, Expedition Base Set
- EBS

- ·Card number: #20/165
- ·Rarity: Rare
A PSA 8 Mewtwo #20 Reverse Holo from Expedition Base Set has a TCGBerg fair value of $1,110 as of Nov 14, 2026. It rests on 30 recorded sales, the latest on Nov 9, 2026. PSA has graded 186 copies at PSA 8. Sales evidence is limited, so treat this value as a rough estimate.
TCGBerg Algorithm (estimated from recorded sales).
30 sales · latest Nov 9, 2026
- Population · PSA 8
- 186
- Market cap
- $206.4K
- Volatility
- 4.2%
- YTD
- ↑ 576.1%
- Sales evidence
- Limited
TCGBerg fair value · PSA 8
$1,110
Based on 30 recorded sales. Latest sale: Nov 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 8. 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 8 sale, $910 on Nov 9, 2026, sits 18.0% below the $1,110 fair value. The value rests on 30 recorded PSA 8 sales. The latest sale ran below the recent run: the last 5 PSA 8 sales averaged $1,074, within 3.2% of the value. Its confidence band runs from $1,008 to $1,211. A PSA 10 ($15,827) is worth 6.4 times a PSA 9 ($2,480). Over the past 30 days the PSA 8 value has risen 12.6%. 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.
- Raw LP$957Ungraded · TCGBerg fair value
- Raw NM$750Ungraded · market price
- Raw MP$240Ungraded · TCGBerg fair value
- Raw HP$171Ungraded · market price
- Raw Damaged$68Ungraded · 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 10, 2026 | PSA9 | eBay | $2,200 | below fair value by -11.3% |
| Nov 9, 2026 | PSA8 | eBay | $910 | below fair value by -18.0% |
| Nov 9, 2026 | PSA9 | eBay | $2,313 | below fair value by -6.7% |
| Nov 3, 2026 | PSA8 | eBay | $1,111 | below fair value by -0.4% |
| Nov 2, 2026 | PSA9 | eBay | $2,475 | below fair value by -4.7% |
- $2,200Nov 10, 2026 · via eBayPSA9↓below fair value by 11.3%
- $910Nov 9, 2026 · via eBayPSA8↓below fair value by 18.0%
- $2,313Nov 9, 2026 · via eBayPSA9↓below fair value by 6.7%
- $1,111Nov 3, 2026 · via eBayPSA8↓below fair value by 0.4%
- $2,475Nov 2, 2026 · via eBayPSA9↓below fair value by 4.7%
| Oct 30, 2026 | PSA10 | eBay | $15,100 | below fair value by -3.9% |
| Oct 27, 2026 | PSA9 | eBay | $2,140 | below fair value by -6.1% |
| Oct 27, 2026 | Raw | tcgplayer | $801 | at fair value by 0.0% |
- $15,100PSA10↓below fair value by 3.9%
- $2,140PSA9↓below fair value by 6.1%
- $801Raw·at fair value by 0.0%
15 more sales with Pro
Up to 20 recent sales, each with its venue and its gap to fair value.
↓Includes a sale 7.2% 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$15,8271d ·0.0%7d ↓1.8%30d ↑0.2%
- Pop
- 51
- Mcap
- $807.2K
- Evidence
- Limited
- Last
- $15,100
- PSA9$2,4801d ↓0.1%7d ↓4.3%30d ↑46.1%
- Pop
- 158
- Mcap
- $391.8K
- Evidence
- Limited
- Last
- $2,200
- PSA8$1,1101d ↓0.1%7d ↓0.4%30d ↑12.6%
- Pop
- 186
- Mcap
- $206.4K
- Evidence
- Limited
- Last
- $910
| Listings | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| PSA10 | $15,827 | 51 | $807.2K | 0.0% | ↓down 1.8% | ↑up 0.2% | ↑up 355.6% | Limited | $15,1002w ago | |
| PSA9 | $2,480 | 158 | $391.8K | ↓down 0.1% | ↓down 4.3% | ↑up 46.1% | ↑up 237.5% | Limited | $2,2004d ago | |
| PSA8 | $1,110 | 186 | $206.4K | ↓down 0.1% | ↓down 0.4% | ↑up 12.6% | ↑up 148.0% | Limited | $9105d ago | |
| PSA7 | $545 | 117 | $63.8K | ↑up 0.2% | ↑up 4.4% | ↑up 18.5% | ↑up 75.3% | Sparse | $6251mo ago | |
| PSA6 | $355 | 94 | $33.4K | 0.0% | ↑up 6.4% | ↑up 14.7% | ↑up 34.8% | Limited | $3502mo ago | |
| PSA5 | $337 | 69 | - | 0.0% | ↑up 0.4% | ↑up 8.5% | ↑up 54.2% | Moderate | $4501mo ago | |
| PSA3 | - | 16 | - | - | - | - | - | Sparse | - | |
| PSA1 | $255 | 28 | - | ↑up 0.9% | ↑up 0.5% | ↓down 8.2% | ↑up 52.3% | Moderate | $2803w ago | |
| Raw | $750 | - | - | 0.0% | 0.0% | ↑up 7.2% | ↑up 7.2% | - | $8013w ago |
PSA population report
How Mewtwo'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.719 graded copies of Mewtwo Reverse Holo across 8 grades. The selected grade is highlighted.
PSA 8 makes up 26% of graded copies: 186 of 719. It’s the most common grade for this card.
Analysis
Mewtwo - Reverse Holo at PSA 10 carries a TCGBerg fair value of $15,827 as of 2026-11-13. We track a TCGBerg fair value across 7 grades from Expedition Base Set, from PSA 1 up to PSA 10. A graded population of 51 copies sits behind the PSA 10 grade. The PSA 10 valuation rests on limited sales evidence. Over the past 30 days, the PSA 10 TCGBerg fair value has risen 0.2%.