Surging Sparks’s regular retail Elite Trainer Box is priced at $123, sitting at 68% of its tracked 90-day range. eBay active listings have moved -1.4% over the tracked supply window (artifact-filtered, median-to-median). It trades at 2.5× its $49.99 retail price. Against the ETB market’s median 30-day move of -1.1%, it is running +3.8% ahead (+1 to score).
Context & evidence · data confidence A: 118 price reads over 182 days · 28 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.
Price history
eBay supply
