# EMA and Heikin-Ashi Filter

Combines Heikin-Ashi and EMA filters to reduce false signals in volatile markets.

Canonical: https://prismaticalgos.com/compendium/algo/236-ema-and-heikin-ashi-filter
Record ID: 236
Catalog rank: 933 (reading order, not performance)
Snapshot: 2026-10-31 15:46 UTC
Family: Trend Following & Directional (A)
Source: https://www.mql5.com/en/articles/20851
Evidence label (unverified): source_code

## 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: any
- sessions: any
- market_regime: volatile|transitional

## Indicators

- EMA: {"period": 50}; applied to: close
- EMA: {"period": 20}; applied to: high
- EMA: {"period": 20}; applied to: low

## Recorded long-entry rules

- (HA Close > EMA20 High)
- (HA Close > HA Open)
- (HA Close > EMA50 Close)
- (EMA50 current > EMA50 previous)
- (Previous HA close was below EMA50)

## Recorded short-entry rules

- (HA Close < EMA20 Low)
- (HA Close < HA Open)
- (HA Close < EMA50 Close)
- (EMA50 current < EMA50 previous)
- (Previous HA close was above EMA50)

## Recorded exit rules

- none specified in text

## Recorded filters

- news filter
- max spread 2.0 pips

## Risk controls

- Stop loss: how SL is placed, with numbers if given
- Take profit: how TP is placed, with numbers if given
- Position sizing: sizing rule if stated