Payments & Fintech · SOTA Ensemble · 2026-07-21

📈 UP: COIN (100%), PYPL (83%) 📉 DOWN: AXP (100%), GPN (83%) Top call — AXP: SOTA Ensemble — a purged-CV rank ensemble (gradient-boosting + ridge + momentum). AXP ranks #3 of 7 in Payments & Fintech (100% bearish percentile), so the agent calls it DOWN for the next session. Graded so far: 3/4 ✓ Track record: 68 graded calls, precision 56%