Grass Energy #4, Normal, Bulbasaur Deck
Japanese edition
- Card number: #4
- ·Rarity: Promo
- ·Finish: Promo
A PSA 9 Grass Energy #4 Normal from Bulbasaur Deck has a TCGBerg fair value of $16 as of Nov 15, 2026. It rests on 2 recorded sales, the latest on Jun 23, 2026. PSA has graded 5 copies at PSA 9. Sales evidence is sparse, so treat this value as a rough estimate.
TCGBerg Algorithm (estimated from recorded sales).
2 sales · latest Jun 23, 2026
- Population · PSA 9
- 5
- Market cap
- $80
- Volatility
- 0.6%
- YTD
- ↑ 73.2%
- Sales evidence
- Sparse
TCGBerg fair value · PSA 9
$16
Based on 2 recorded sales. Latest sale: Jun 23, 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, $15 on Jun 23, 2026, sits 6.7% below the $16 fair value. The value rests on 2 recorded PSA 9 sales. With so few PSA 9 sales on record, a single sale can sit far from the value. Its confidence band runs from $13 to $19. A PSA 10 ($97) is worth 6.1 times a PSA 9 ($16). Over the past 30 days the PSA 9 value has fallen 1.7%. 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
2 trackedEach sale against the grade's fair value on the day it sold.
| Date | Grade | Venue | Price | vs fair value |
|---|---|---|---|---|
| Jun 23, 2026 | PSA9 | eBay | $15 | above fair value by +16.3% |
| Mar 17, 2026 | PSA9 | eBay | $7.50 | below fair value by -4.2% |
- $15Jun 23, 2026 · via eBayPSA9↑above fair value by 16.3%
- $7.50Mar 17, 2026 · via eBayPSA9↓below fair value by 4.2%
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$971d ·0.0%7d ·0.0%30d ↓2.5%
- Pop
- 10
- Mcap
- $973
- Evidence
- Sparse
- Last
- $21
- PSA9$161d ↑0.1%7d ↑0.1%30d ↓1.7%
- Pop
- 5
- Mcap
- $80
- Evidence
- Sparse
- Last
- $15
- PSA8$9.821d ·0.0%7d ·0.0%30d ↓2.9%
- Pop
- 3
- Mcap
- $29
- Evidence
- Sparse
- Last
- -
| PSA10 | $97 | 10 | $973 | 0.0% | 0.0% | ↓down 2.5% | ↑up 25.8% | Sparse | $212y ago |
| PSA9 | $16 | 5 | $80 | ↑up 0.1% | ↑up 0.1% | ↓down 1.7% | ↑up 18.0% | Sparse | $155mo ago |
| PSA8 | $9.82 | 3 | $29 | 0.0% | 0.0% | ↓down 2.9% | ↑up 17.5% | Sparse | - |
| PSA7 | $7.74 | 0 | - | ↑up 4.7% | ↑up 4.5% | ↑up 0.7% | ↓down 7.4% | Sparse | - |
| PSA6 | $5.72 | 0 | - | ↑up 6.5% | ↑up 5.9% | ↑up 0.5% | ↓down 31.6% | Sparse | - |
PSA population report
How Grass Energy'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.18 graded copies of Grass Energy Normal across 3 grades. The selected grade is highlighted.
PSA 9 makes up 28% of graded copies: 5 of 18. PSA 10 is the most common grade (56%).
Analysis
Grass Energy at PSA 10 carries a TCGBerg fair value of $97 as of 2026-11-14. We track a TCGBerg fair value across 5 grades from Bulbasaur Deck, from PSA 6 up to PSA 10. A graded population of 10 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 2.5%.