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Wobbuffet BREAK #XY155, Break Evolution Box, XY Black Star Promos

  • Card number: #XY155
  • Rarity: Promo
  • Finish: Non-Holo

A PSA 8 Wobbuffet BREAK #XY155 Break Evolution Box from XY Black Star Promos has a TCGBerg fair value of $38 as of Nov 15, 2026. It rests on 4 recorded sales, the latest on Aug 24, 2026. PSA has graded 14 copies at PSA 8. Sales evidence is limited, so treat this value as a rough estimate.

TCGBerg fair valuePSA 8
As of Nov 15, 2026
$38up 32.3%30-day change

TCGBerg Algorithm (estimated from recorded sales).

4 sales · latest Aug 24, 2026

Fair value3 months
Last sale$40Aug 24, 20264.7% above fair
5-sale avg$34Jul 26Aug 24
Population · PSA 8
14
Market cap
$535
Volatility
10.2%
YTD
↑ 602.2%
Sales evidence
Limited

TCGBerg fair value · PSA 8

$38

30D32.3%YTD602.2%
Sales evidenceLimited

Based on 4 recorded sales. Latest sale: Aug 24, 2026.

Market cap
$535
fair value x population
Population
14
graded copies
Last sale
$40
+4.7% vs fair
5-sale avg
$34
recent sales
Grading

Price history

Open terminalPro

Weekly fair value for PSA 8.

Open in TerminalCandles, every grade, full historyPro

What the evidence says

The last PSA 8 sale, $40 on Aug 24, 2026, is in line with the $38 fair value (4.7% above). The value rests on 4 recorded PSA 8 sales. Its confidence band runs from $29 to $48. A PSA 10 ($569) is worth 7.3 times a PSA 9 ($78). Over the past 30 days the PSA 8 value has risen 32.3%. With limited sales evidence, read the gap and the band as rough guides.

TCGBerg fair value by grade

Value at each grade and ungraded condition. Log scale. Tap a row to switch the whole page.

Behind the scenes

What goes into this price, and how much we know.

Recent sales

4 tracked

Each sale against the grade's fair value on the day it sold.

  • $40
    Aug 24, 2026 · via eBay
    PSA8above fair value by 46.1%
  • $27
    Jul 26, 2026 · via eBay
    PSA8above fair value by 53.7%
  • $58
    Mar 28, 2026 · via eBay
    PSA9above fair value by 134.7%
  • $6.50
    Jan 15, 2026 · via eBay
    PSA5below fair value by 51.9%

All grades matrix

Every grade we track for this printing.

  • PSA10$569
    1d 0.0%7d 0.0%30d 985.5%
    Pop
    1
    Mcap
    $569
    Evidence
    Sparse
    Last
    -
  • PSA9$78
    1d 0.0%7d 0.0%30d 115.1%
    Pop
    12
    Mcap
    $931
    Evidence
    Limited
    Last
    $58
  • PSA8$38
    1d 0.0%7d 0.1%30d 32.3%
    Pop
    14
    Mcap
    $535
    Evidence
    Limited
    Last
    $40
PSA10$5691$5690.0%up 985.5%up 860.3%Sparse-
PSA9$7812$9310.0%up 115.1%up 179.9%Limited$588mo ago
PSA8$3814$535up 0.1%up 32.3%up 115.6%Limited$403mo ago
PSA7$257$1760.0%up 78.3%up 108.0%Sparse$8.501y ago
PSA6$141$140.0%up 26.4%up 40.3%Sparse-
PSA5$144-up 0.3%--Sparse$6.5010mo ago

PSA population report

39 graded copies of Wobbuffet BREAK Break Evolution Box across 6 grades.

PSA 10
1 · 2.6%
PSA 9
12 · 31%
PSA 8
14 · 36%
PSA 7
7 · 18%
PSA 6
1 · 2.6%
PSA 5
4 · 10%

PSA 8 makes up 36% of graded copies: 14 of 39. It’s the most common grade for this card.

Analysis

Wobbuffet Break Break Evolution Box - Break Evolution Box at PSA 10 carries a TCGBerg fair value of $569 as of 2026-11-14. We track a TCGBerg fair value across 6 grades from XY Black Star Promos, from PSA 5 up to PSA 10. A graded population of 1 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 risen 985.5%.

PSA 8 - frequently asked

How much is a PSA 8 Wobbuffet Break Break Evolution Box - Break Evolution Box from XY Black Star Promos worth?
$38 as of 2026-11-14, the model-derived TCGBerg fair value for a PSA 8 Wobbuffet Break Break Evolution Box - Break Evolution Box from XY Black Star Promos. It rests on limited sales evidence. This estimate is not a guaranteed sale price.
What is the graded population of a PSA 8 Wobbuffet Break Break Evolution Box - Break Evolution Box from XY Black Star Promos?
14 copies have been graded at PSA 8, the recorded graded population, not the number of copies printed.
How has the PSA 8 Wobbuffet Break Break Evolution Box - Break Evolution Box from XY Black Star Promos price moved recently?
Its TCGBerg fair value has risen 32.3% over the past 30 days.
What did a PSA 8 Wobbuffet Break Break Evolution Box - Break Evolution Box from XY Black Star Promos last sell for?
The most recent recorded sale was $40 on 2026-08-24. This recorded sale is separate from the model-derived fair value.