{
  "id": 3303,
  "rank": 963,
  "name": "Bollinger Pullback Trend Following",
  "aka": [
    "Gold Apr 26 (1d)"
  ],
  "family": "B",
  "subtype": "B1",
  "one_liner": "Enters long when price dips below upper Bollinger Band and is above a smoothed average, exiting based on ATR.",
  "market_regime": "trending",
  "timeframes": [
    "1d"
  ],
  "symbols": [
    "GC=F"
  ],
  "sessions": [],
  "indicators": [
    {
      "name": "Bollinger Bands",
      "params": {
        "period": 21
      },
      "applied_to": "close"
    },
    {
      "name": "Average",
      "params": {
        "period": 35,
        "ma_type": 8
      },
      "applied_to": "close"
    },
    {
      "name": "Average True Range",
      "params": {
        "period": 21
      },
      "applied_to": "close"
    },
    {
      "name": "Average True Range",
      "params": {
        "period": 13
      },
      "applied_to": "close"
    }
  ],
  "entry_long": [
    "NOT LONGONMARKET AND (LOW < BollingerUp[21](close) AND CLOSE > AVERAGE[35, 8](close))"
  ],
  "entry_short": [],
  "exit_rules": [
    "STOP LOSS (2.4 * AVERAGETRUERANGE[21])",
    "TARGET PROFIT (5.4 * AVERAGETRUERANGE[13])"
  ],
  "filters": [],
  "stop_loss": "2.4 times the 21-period ATR",
  "take_profit": "5.4 times the 13-period ATR",
  "position_size": "dynamic sizing",
  "evidence_type": "backtest_shown",
  "completeness": 85.0,
  "signal_warnings": null,
  "claim_warnings": null,
  "opacity_warnings": null,
  "build_warnings": [
    "DAILY_LOW_COUNT: daily-or-slower timeframe on a single instrument. Expect well under 100 trades in five years, so a backtest will rarely reach statistical significance on its own."
  ],
  "canonical": "https://prismaticalgos.com/compendium/algo/3303-bollinger-pullback-trend-following",
  "snapshot": "2026-10-31 15:46 UTC",
  "source_url": "https://www.prorealcode.com/topic/gold-apr-26-1d-bollinger-pullback-trend-following-pf-1-23/",
  "limitations": "These are machine-extracted research records, not verified trading systems. Catalog rank measures specification detail and claimed evidence, not profitability. The catalog extraction pipeline did not independently backtest these records. Its separate selected testing ledger does not validate the wider corpus. Rules, labels and parameters can be incomplete or wrong; consult the original source and its reuse terms."
}