Surging Sparks

Surging Sparks’s pokémon center exclusive Elite Trainer Box is priced at $273, sitting at 83% of its tracked 90-day range. eBay active listings have moved +0.7% over the tracked supply window (artifact-filtered, median-to-median). It trades at 4.5× its $59.99 retail price — far above the retail anchor (−1 to score). Against the ETB market’s median 30-day move of -2.1%, it is lagging by +2.9%. The Pokémon Center exclusive carries a +110.3% premium over this set’s regular ETB — a widening premium with flat regular supply reads as collector demand heating up.

Context & evidence · data confidence A: 105 price reads over 137 days · 15 supply reads · volatility measured · volatility tier Jumpy. ETB signals run the full sealed stack (upgraded 2026-07-10): supply+price core, NEW maturity gate, market-relative strength, and retail-price anchor. The set÷box ratio and Rip Score stay excluded — they don’t translate to a 9-pack product. Every run is logged to the ETB Signal Log so the backtest can grade these dials.