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Adventure on Kami's Island

One Piece
$256
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7-day
+0.1%
30-day
+2.9%
90-day
+3.9%
90d range
$196–$263
eBay supply
119
Supply Δ
+1.7%
Set value
$6,005
Set ÷ box
23.5×
vs retail
2.1×
hold
3/10

This box trades at $256, 2% below its 1-year high of $263. Price has been broadly stable across the last quarter. That puts it in the upper part of its tracked range. It typically swings about ±4.5% 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 2% below that peak now.

eBay supply is growing: active listings are up 2% over the last 60 days — more sellers than buyers for now. The set's cards are worth about $6,005 — 23.5× the box price, vs a typical 18.6× for One Piece. That rich multiple adds +1 to the score. Across One Piece boxes the median 30-day move is -1.8% (29% of boxes up), and this one is running 4.7 points ahead of that pace. Beating its own market adds +1 — the move is this box's, not the tide's.

No supply contraction and no price momentum — nothing actionable right now. Two ways it earns a Buy rating: a 60-day supply drop past 10% while the price holds, or a value setup — a price near the bottom of its range that stabilizes while the set's card value stays rich vs the box.

Context & evidence · trades at 2.1× the ~$120 standard retail price of a One Piece box of its era · data confidence A: 123 price reads over 198 days · 30 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 (+0.3%/30d trend, band = this box’s own volatility)
$274$196Mar 2026Dec 2026

eBay supply

Active listings over time
211116Jun 2026Oct 2026
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.
watch
Enel (OP15-118) (Manga)
$944.95▼ -8.8%
hold
Koby (EB04-044) (Manga)
$614.41▼ -2.0%
hold
Boa Hancock (SP)
$525.94▼ -4.4%
watch
Monkey.D.Luffy (SP)
$524.12▼ -13.9%
watch
Zeus (SP)
$378.36▼ -9.0%
watch
Trafalgar Law (SP)
$304.99▲ +1.5%
watch
Sabo (PRB02-014) (SP)
$177.55▼ -9.0%
watch
Roronoa Zoro (OP13-037)
$166.38▼ -18.2%
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.