F Dragonstone — ~52gp post-tax spread on capped size to fit 50M budget killed

Stable jewelry commodity used in many crafting recipes (dragonstone amulet, bracelet, ring). Both legs print fresh within minutes and the daily close history clusters between 10700 and 11700 over 30d. The 11000 buy_limit × 10744 low would require 118M capital — well above the 50M research budget — so the sizing is capped at the budget-feasible 4654 units. At that size the post-tax margin of 52gp clears the ~2% tax hurdle with room, vol5m 1938 and vol24h 203k both easily absorb 4654 units in one 4h cycle, and the recent 7d drift is mild (-1.5%) — the spread is not yet consumed by trend.

Entry: Place buy offer at 10744 (low); place sell offer at 10796 (high).
Exit: Cancel unfilled side if margin collapses below 25gp for two consecutive evaluations.

Kill switch: Margin collapses below 25gp AND daily close drops below 10600.

From run 436 · F-dragonstone-20260731