{
  "run_at": "2026-05-13T14:58:38+08:00",
  "host": "mason-main",
  "shard": 0,
  "shards": 8,
  "symbols": 39,
  "combos": 4368,
  "failed": 0,
  "trades": 1545,
  "wins": 817,
  "losses": 728,
  "realized_roi_pct": 1662.23,
  "output": "/tmp/quant-sweep-20260513_145815_tradelog-0.jsonl"
}