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Adventure on Kami's Island

One Piece
$255
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7-day
-2.3%
30-day
-0.9%
90-day
+20.6%
90d range
$196–$263
eBay supply
128
Supply Δ
-39.3%
Set value
$6,666
Set ÷ box
26.1×
vs retail
2.1×
watch · at its 1-year high - little room left
4/10

This box trades at $255, 3% below its 1-year high of $263. It's up 20.6% over 90 days, though the pace has cooled lately. That puts it in the upper part of its tracked range. It typically swings about ±10.4% in a month — jumpy for a One Piece box, so single-digit dips here are mostly noise. Worst tracked stretch: a 25% drawdown from peak; it sits 3% below that peak now.

eBay supply is tightening: active listings are down 39% over the last 60 days (~128 live now). The set's cards are worth about $6,666 — 26.1× the box price, vs a typical 17.1× for One Piece. That rich multiple adds +1 to the score. Across One Piece boxes the median 30-day move is -0.0% (45% of boxes up), and this one is running 0.9 points behind that pace.

Supply is tightening, but the box sits within 5% of its 1-year high AND the last week turned down — pinned at the ceiling with momentum rolling over, so it's held at Watch. (A box at its high that's still climbing is treated as a breakout and stays a buy.) A pullback below roughly $249 — or a decisive break to new highs — reopens the buy case.

Context & evidence · trades at 2.1× the ~$120 standard retail price of a One Piece box of its era · data confidence A: 110 price reads over 153 days · 18 supply reads · volatility measured. Grades improve automatically as history accrues — we publish the evidence depth, not just the verdict.

Price history

Market price, USD · shaded cone = 60-day trend projection (+8.2%/30d trend, band = this box’s own volatility)
$342$196projection2026-03-25+60d (2026-10-24)

eBay supply

Active listings over time
2111162026-06-262026-08-27
Top cards in this set
Top 8 of 20 cards tracked in this set, ranked by market value. Tap any card for its own price history and rating — what the sealed product is worth ripping for is the same question these cards answer.
hold
Enel (OP15-118) (Manga)
$1,051.33▼ -2.9%
hold
Koby (EB04-044) (Manga)
$628.94▼ -0.6%
watch
Monkey.D.Luffy (SP)
$623.92▲ +2.8%
hold
Boa Hancock (SP)
$560.90▼ -1.3%
hold
Zeus (SP)
$448.13▼ -9.5%
watch
Trafalgar Law (SP)
$296.01▲ +1.6%
watch
Roronoa Zoro (OP13-037)
$223.37▼ -20.4%
watch
Sabo (PRB02-014) (SP)
$207.67▼ -17.3%
Hover (or tap) anywhere on a chart to read the value on that date. The cone is a trend projection, not a prediction: it extends the last 90 days’ trajectory and widens with this box’s typical swing — roughly 2 of 3 outcomes should land inside it, and every projection is logged so we can publish how often that actually holds. Supply readings are eBay active-listing counts (approximate and jittery). Informational only — not financial advice. Reload to refresh.