This box trades at $329, 2% below its 1-year high of $335. It's in a steady climb: up 8.8% over 90 days and still rising this week. That puts it in the upper part of its tracked range. It typically swings about ±12.5% in a month — jumpy for a One Piece box, so single-digit dips here are mostly noise. Worst tracked stretch: a 27% drawdown from peak.
eBay supply is tightening: active listings are down 17% over the last 60 days (~151 live now). The set's cards are worth about $7,834 — 23.8× 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 8.0 points ahead of that pace. Beating its own market adds +1 — the move is this box's, not the tide's.
Tightening supply with a price that's holding is the classic setup — rated Strong Buy. It's also pushing into new highs rather than stalling at them: supply is tightening while the price keeps making ground, and the last week hasn't turned down. A squeeze that's still being paid up for is the strongest version of this setup, so being near the high counts for it here, not against it. What would end it: supply refilling (the 60-day drop easing back under 10%), or the 30-day price slipping more than 2%.
Context & evidence · trades at 2.7× the ~$120 standard retail price of a One Piece box of its era · data confidence A: 105 price reads over 137 days · 15 supply reads · volatility measured. Grades improve automatically as history accrues — we publish the evidence depth, not just the verdict.
Price history
eBay supply
