{
  "id": 11231,
  "rank": 1003,
  "name": "Leviathan",
  "aka": [
    "price action trading bot",
    "trend-filtered price action trading bot"
  ],
  "family": "A",
  "subtype": "A2",
  "one_liner": "Trades or signals based on trend filter, break of structure, and candle pattern confirmation.",
  "market_regime": "trending",
  "timeframes": [
    "H1"
  ],
  "symbols": [
    "EURUSD"
  ],
  "sessions": [
    "any"
  ],
  "indicators": [
    {
      "name": "EMA",
      "params": {
        "period": 9
      },
      "applied_to": "close"
    },
    {
      "name": "EMA",
      "params": {
        "period": 21
      },
      "applied_to": "close"
    },
    {
      "name": "EMA",
      "params": {
        "period": 200
      },
      "applied_to": "close"
    },
    {
      "name": "ATR",
      "params": {
        "period": 14
      },
      "applied_to": "close"
    }
  ],
  "entry_long": [
    "EMA(9) > EMA(21) and price > EMA(200)",
    "Close breaks the highest high of the last 20 bars",
    "Engulfing or pinbar pattern"
  ],
  "entry_short": [
    "EMA(9) < EMA(21) and price < EMA(200)",
    "Close breaks the lowest low of the last 20 bars",
    "Engulfing or pinbar pattern"
  ],
  "exit_rules": [
    "Stop loss placed at ATR(14) * 1.5 * risk:reward ratio",
    "Take profit placed at risk:reward ratio * stop loss"
  ],
  "filters": [
    "news filter",
    "max spread 2.0 pips"
  ],
  "stop_loss": "ATR(14) * 1.5 * risk:reward ratio",
  "take_profit": "risk:reward ratio * stop loss",
  "position_size": "Fixed lot or Risk % of equity",
  "evidence_type": "backtest_shown",
  "completeness": 50.0,
  "signal_warnings": null,
  "claim_warnings": null,
  "opacity_warnings": null,
  "build_warnings": null,
  "canonical": "https://prismaticalgos.com/compendium/algo/11231-leviathan",
  "snapshot": "2026-10-31 15:46 UTC",
  "source_url": "https://github.com/santiquiroz/leviathan",
  "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."
}