{
  "id": 2440,
  "rank": 286,
  "name": "Zeiierman Bands",
  "aka": [
    "Zeiierman Bands - An Asymmetric Volatility Envelope"
  ],
  "family": "A",
  "subtype": "A10",
  "one_liner": "Asymmetric volatility envelope with adaptive liquidity and mean-reverting regime test.",
  "market_regime": "any",
  "timeframes": [
    "daily"
  ],
  "symbols": [
    "any"
  ],
  "sessions": [
    "any"
  ],
  "indicators": [
    {
      "name": "EMA",
      "params": {
        "period": 20
      },
      "applied_to": "close"
    }
  ],
  "entry_long": [
    "zScore > -0.75 and zScore[1] <= -0.75"
  ],
  "entry_short": [
    "zScore < 0.75 and zScore[1] >= 0.75"
  ],
  "exit_rules": [
    "cross through the inner band on the same side"
  ],
  "filters": [
    "mean-reverting regime test"
  ],
  "stop_loss": "not specified",
  "take_profit": "not specified",
  "position_size": "not specified",
  "evidence_type": "source_code",
  "completeness": 50.0,
  "signal_warnings": [
    "TIME-ONLY ENTRY: the entry conditions reference only clock time or session, with no market condition. This opens positions on a schedule."
  ],
  "claim_warnings": null,
  "opacity_warnings": [
    "UNDEFINED ENTRY TERM: the entry conditions are prose naming a concept with no numeric definition, so two readers would implement them differently. Advisory only -- this does not affect the score."
  ],
  "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/2440-zeiierman-bands",
  "snapshot": "2026-10-31 15:46 UTC",
  "source_url": "https://www.prorealcode.com/prorealtime-indicators/zeiierman-bands-an-asymmetric-volatility-envelope/",
  "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."
}