# Spread Sensitivity EA

Adaptive multi-symbol EA that dynamically switches between symbols based on spread efficiency using EMA and RSI for entry and ATR for stop loss and take profit.

Canonical: https://prismaticalgos.com/compendium/algo/168-spread-sensitivity-ea
Record ID: 168
Catalog rank: 213 (reading order, not performance)
Snapshot: 2026-10-31 15:46 UTC
Family: Mean Reversion & Counter-Trend (B)
Source: https://www.mql5.com/en/articles/20371
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,GBPUSD,XAUUSD,US100,BTCUSD
- timeframes: M5
- sessions: Not specified
- market_regime: volatile

## Indicators

- EMA: {"period": 9}; applied to: close
- EMA: {"period": 21}; applied to: close
- RSI: {"period": 14}; applied to: close

## Recorded long-entry rules

- fast EMA crosses above slow EMA
- RSI is oversold (below 30)

## Recorded short-entry rules

- fast EMA crosses below slow EMA
- RSI is overbought (above 70)

## Recorded exit rules

- stop loss placed at ATR * 1.5
- take profit placed at ATR * 2.0

## Recorded filters

- max absolute spread 10.0 pips
- max spread/ATR ratio 0.25
- adaptive filtering enabled
- symbol disabled for 60 seconds if spread exceeds max absolute spread
- symbol disabled for 60 seconds if spread/ATR ratio exceeds 0.25
- max 3 active symbols at once
- cooldown between trades 300 seconds

## Risk controls

- Stop loss: ATR * 1.5
- Take profit: ATR * 2.0
- Position sizing: 1% risk per trade