# Bollinger Bands Meta-Labeling

Uses Bollinger Bands for entry signals and a secondary model for filtering and position sizing in ranging markets.

Canonical: https://prismaticalgos.com/compendium/algo/496-bollinger-bands-meta-labeling
Record ID: 496
Catalog rank: 951 (reading order, not performance)
Snapshot: 2026-10-31 15:46 UTC
Family: Mean Reversion & Counter-Trend (B)
Source: https://www.mql5.com/en/articles/22755
Evidence label (unverified): backtest_shown

## Scope and 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.

No endorsement, ownership claim or source-code reuse permission is implied.

## Extraction warnings

No automated warnings recorded; this is not validation.

## Recorded profile

- symbols: any
- timeframes: H1
- sessions: any
- market_regime: ranging|trending

## Indicators

- Bollinger Bands: {"period": 20, "std": 2.0}; applied to: close
- ADX: {"period": 14}; applied to: close
- RSI: {"period": 14}; applied to: close

## Recorded long-entry rules

- close <= lower_band

## Recorded short-entry rules

- close >= upper_band

## Recorded exit rules

- none specified

## Recorded filters

- none specified

## Risk controls

- Stop loss: not specified
- Take profit: not specified
- Position sizing: meta-label probability-based