EA Diamond MT4 — EURUSD & GBPUSD Scalper with 94%+ Win Rate

EA Diamond is a MetaTrader 4 expert advisor that scalps EURUSD and GBPUSD on the H1 timeframe using precision entry filters, a trailing stop mechanism, and an integrated news filter to avoid high-impact events.

A five-year backtest on EURUSD (2018–2023, $1,000 starting capital) shows 88.25% win rate at 32.92% peak drawdown; the GBPUSD configuration achieves 94.37% win rate with 11.90% peak drawdown over the same period.

Key Benefits

• ✅ Win Rate: GBPUSD backtest delivers 94.37% win rate over five years — achieved through a tight 10-pip take profit that accepts frequent small wins at the cost of occasional larger losses.
• ✅ News Avoidance: Built-in calendar filter automatically pauses trading 30 minutes before and 45 minutes after NFP and high-impact EUR/USD events — reducing spike exposure without manual intervention. Compare EA strategies
• ✅ Spread Gating: MaxSpread 1.5 pips hard limit prevents entries during widening spreads — filters out poor-execution conditions at the cost of missing some valid signals in illiquid sessions.
• ✅ Session Filter: Trades only 06:15–21:45 server time, with Friday cutoff at 11:45 — concentrates activity in liquid European and early US sessions, skips weekend gap risk entirely.

This EA requires MT4. Need MT5 platform support? Browse MT5 EAs

EA Diamond Performance

The EURUSD five-year backtest (2018.01.02–2023.01.01) ran on every-tick modeling at 99.95% tick quality, starting capital $1,000, producing 8,280 trades with a profit factor of 2.50 and 88.25% win rate at 32.92% peak drawdown.

The GBPUSD five-year backtest (same period, $1,000 capital, 1.25% risk) completed 3,090 trades at 94.37% win rate, profit factor 3.74, with peak drawdown of 11.90% — the tightest drawdown profile across all documented configurations.

Performance Snapshot — GBPUSD (Primary Low-DD Configuration)

Performance Snapshot — EURUSD (Standard Configuration)

The EURUSD configuration’s 32.92% peak drawdown is the specific risk to size for. The drawdown accumulates during extended USD trending periods when the EA’s mean-reversion bias continues entering against momentum — the strategy targets range-bound and oscillating price, not sustained directional moves. This is a structural characteristic of the approach: no setting eliminates it, but reducing TradingRisk from 1.5% to 1.25% shifts the GBPUSD peak drawdown from 19.02% to 11.90%, and a comparable reduction on EURUSD is expected to compress drawdown proportionally.

Running both pairs simultaneously without reducing per-pair risk creates correlated drawdown — if EURUSD and GBPUSD trend together against the EA’s position (which occurs during broad USD moves), the combined account drawdown can reach 25%+ on a $200 minimum account, per documented user backtest data.

Five-year backtests at 99.95% tick quality confirm historical behavior — live broker spreads, slippage, and execution latency are not reflected in these figures.

How EA Diamond Works

Mechanism: EA Diamond targets short-term mean-reversion on EURUSD and GBPUSD H1 — it enters when price deviates from a defined range boundary, expecting reversion to a statistical midpoint. The 10-pip take profit is calibrated to the natural noise range of these pairs during European and early US session liquidity, capturing frequent small oscillations rather than riding trends.

Signal Trigger: Entry fires when price reaches the RNDLevel threshold (10.0 points) from a reference level, with spread below 1.5 pips confirmed at trigger time. Both long and short directions are active by default.

Position Close: Primary exit is a fixed 10-pip take profit. A trailing stop activates at TSLRatio 2.0 once profit threshold is reached, locking in gains on extended moves. Base stop loss is set at 115 points (BaseSL), with TSLevelSL enabled to trail the stop progressively.

Exposure Limits: MaxOrderCount caps open positions at 10 simultaneously. AutoLot scales position size to account equity using TradingRisk 1.25%, preventing fixed-lot oversizing as the account grows. MaxDDControl is set to 0 by default — meaning no hard equity stop is active unless manually configured.

✅ Optimal conditions: Range-bound or oscillating EURUSD/GBPUSD during European session overlap (06:15–15:00 server time); spread consistently below 1.5 pips; no scheduled high-impact news within the pause window.

⚠️ Avoid when: Sustained USD directional trends lasting multiple H1 bars — the mean-reversion entries accumulate against momentum. Also avoid news sessions outside the automated filter window (non-EUR/USD high-impact events the filter does not cover).

Recommended Settings

Who Should Use EA Diamond

• ✅ Running MT4 on a VPS with uninterrupted connectivity — the session timer and live news calendar require a stable 24/5 connection.
• ✅ Starting with $1,000+ — the $200 minimum is documented, but at that capital level a single drawdown sequence on two simultaneous pairs can consume 25% of account equity before recovery.
• ✅ Using an ECN/STP broker with EURUSD and GBPUSD spreads consistently under 1.5 pips — the MaxSpread gate will block entries entirely on brokers with wider typical spreads, reducing trade frequency significantly.
• ✅ Comfortable running 1.25% risk per trade — willing to hold through drawdown sequences of 10–33% depending on pair and configuration, without manual interference that disrupts the recovery pattern.

Performance verified with: MT4 backtests on EURUSD and GBPUSD H1, 99.95% tick quality, $1,000 starting capital, 1.25%–1.5% risk settings.

What’s Included

• ✅ Experts:
  • EA Diamond v1.75_fix (.ex4)
• ✅ Setfiles:
  • DIAMOND_EUR_R1.5.set
  • DIAMOND_EUR_R1.25.set
  • DIAMOND_EUR_SL.set
  • DIAMOND_GBP_R1.5.set
  • DIAMOND_GBP_R1.25.set
  • DIAMOND_GBP_SL.set
  • DIAMOND_JPY_R1.5.set
  • DIAMOND_JPY_R1.25.set
  • DIAMOND_JPY_SL.set

The download link will be sent to your email immediately after purchase, along with a video tutorial on how to install it.

Frequently Asked Questions