# EURUSD Mean Reversion EA

A discretionary-rules-encoded mean reversion Expert Advisor for EUR/USD on the M15 timeframe.

Canonical: https://prismaticalgos.com/compendium/algo/11641-eurusd-mean-reversion-ea
Record ID: 11641
Catalog rank: 270 (reading order, not performance)
Snapshot: 2026-10-31 15:46 UTC
Family: Mean Reversion & Counter-Trend (B)
Source: https://github.com/rishikabirverma/eurusd-mean-reversion-ea
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: EURUSD
- timeframes: M15
- sessions: Not specified
- market_regime: any

## Indicators

- Bollinger Bands: {"multiplier": 1.2, "period": 20}; applied to: close
- Williams %R: {"length": 8}; applied to: close
- EMA: {"period": 36}; applied to: close
- EMA: {"period": 63}; applied to: close

## Recorded long-entry rules

- Previous candle opens below the lower band; current candle closes back above it
- Reading of Williams %R is more negative than -30
- Close > EMA_long (default 63) — bullish regime

## Recorded short-entry rules

- Previous candle is bullish and sits above the middle band; current candle reverses bearish
- Reading of Williams %R is less negative than -40
- Close < EMA_short (default 36) — bearish regime

## Recorded exit rules

- One-trade-per-bar limit via lastTradeTime

## Recorded filters

- news filter
- max spread 2.0 pips

## Risk controls

- Stop loss: swing high / low of the last 5 bars, plus a configurable pip buffer
- Take profit: R:R = 1 : 3.5 by default
- Position sizing: fixed lot (default 0.01)