This box trades at $506, 7% below its 1-year high of $542. It fell 5.9% over 90 days and has stabilized in the last month. That leaves it near the bottom of its tracked range. It typically swings about ±1.2% in a month — calm by One Piece box standards, so moves that size are worth noticing. Worst tracked stretch: a 8% drawdown from peak; it sits 7% below that peak now.
eBay supply is growing: active listings are up 13% over the last 60 days — more sellers than buyers for now. The set's cards are worth about $3,019 — 6.0× the box price, vs a typical 12.8× for One Piece. That thin multiple trims 1 point off the score. Across One Piece boxes the median 30-day move is +1.9% (89% of boxes up), and this one is running 1.3 points behind that pace.
No supply contraction and no price momentum — nothing actionable right now. What to watch for: a 60-day supply drop past 10% while the price holds, which flags BUY SETUP.