{
  "experiment_name": "exec_opt_e_big_winners",
  "dataset_snapshot_id": "cd664594-6a6c-4e16-afef-9104ce900f33",
  "description": "Execution opt E: big winner focus. Wider stops (3.5 ATR), high targets (2.5 ATR), wide trailing (10%), long hold (20d), small partial (33%).",
  "base_config": "configs/backtest/defaults.json",
  "overrides": {
    "signal": { "score_threshold": 0.5 },
    "risk": { "stop_atr_multiplier": 3.5 },
    "execution": {
      "target_atr_multiplier": 2.5,
      "target_1_fraction": 0.33,
      "trailing_model": "pct_10",
      "max_holding_days": 20
    }
  },
  "tags": ["exec-opt", "big-winners"]
}