MEKAMAINA 2.0 EA — GBPUSD Scalper with Fixed Stop-Loss and Session Filter

MEKAMAINA 2.0 is a MetaTrader 4 Expert Advisor that trades GBPUSD using a session-filtered entry approach with a fixed 50-pip stop-loss on every position.

The EA operates within a defined 12:00–20:00 trading window and limits exposure to one position at a time, keeping maximum open risk to a single trade at any moment.

Key Benefits

• ✅ Defined Risk Per Trade: Every position carries a hard 50-pip stop-loss — loss per trade is fixed and calculable before entry, though pip value scales with lot size.
• ✅ Session-Constrained Trading: Entries restricted to the 12:00–20:00 window targeting the London–New York overlap — trades opened outside this session are not taken, which limits opportunity but also limits overnight gap exposure.
• ✅ Single-Position Limit: MaxPosition set to 1 prevents simultaneous compounding — one trade at a time means no basket accumulation, though it also caps recovery speed after a losing trade. Compare EA strategies
• ✅ Spread Guard: MaxSpread cap of 350 points blocks entries during wide-spread conditions — protects against news-spike fills, though tight-spread ECN brokers are required for consistent execution.

MEKAMAINA 2.0 Performance

Available performance data consists of a live trading chart covering a 3-day window (29 November – 1 December 2023) on a GBPUSD account held by David Mr, showing active trade management with both winning and losing trade close controls visible.

The structural risk in MEKAMAINA 2.0 is consecutive losing trades during sustained GBPUSD directional moves that trigger the 50-pip stop repeatedly before the session window closes — each loss is fixed, but a 3–4 loss sequence within a single session compounds account impact directly.

This is a Controllable weakness: reducing lot size proportionally to account balance is the primary lever, and the single-position limit already prevents the basket-accumulation risk common in grid-style EAs.

No drawdown figures, win rate, profit factor, or multi-month return data are present in the available evidence — full risk classification requires a minimum 90-day demo run before committing live capital.

The available data covers a 3-day live chart window — win rate, drawdown percentage, and long-run performance cannot be confirmed from this source alone.

How MEKAMAINA 2.0 Works

Mechanism: MEKAMAINA 2.0 targets GBPUSD price movements during the London–New York session overlap (12:00–20:00 server time), a window historically associated with higher liquidity and tighter spreads on Cable — conditions where short-duration directional trades carry lower slippage cost relative to potential pip gain.

Signal Trigger: Entry conditions are not publicly documented in available sources — the EA opens positions based on internal logic not exposed in the input parameter set.

Position Close: The EA provides manual-override buttons (“Close all losing trades” / “Close all winning trades”) visible on-chart, alongside an internal take-profit mechanism (TP set to 0.0 in default inputs, suggesting dynamic or condition-based close logic rather than a fixed pip target).

Exposure Limits: MaxPosition capped at 1 prevents any simultaneous open exposure. MaxSpread at 350 points blocks entries when spread widens beyond that threshold. A fixed 50-pip stop-loss (Pips_StopLossPips: 50) defines the maximum loss per trade.

✅ Optimal conditions: Trending GBPUSD sessions during London–New York overlap; stable spreads below 3.5 pips; no major USD or GBP news events within the active window.

⚠️ Avoid when: High-impact GBP or USD news events fall within the 12:00–20:00 window (spreads spike beyond the 350-point filter, blocking entries or causing slippage on open positions); broker execution is slow or uses market maker model with variable spread widening.

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

Recommended Settings

Who Should Use MEKAMAINA 2.0

• ✅ Running MT4 on a VPS with stable connection during the 12:00–20:00 GMT window
• ✅ Trading GBPUSD exclusively through an ECN or STP broker with spreads consistently below 3.5 pips
• ✅ Comfortable sizing positions where a 50-pip stop-loss represents an acceptable fixed-dollar risk per trade relative to account size
• ✅ Willing to run a minimum 90-day demo before live deployment — available data covers 3 days only, which is insufficient to assess drawdown behavior across varying market conditions

Performance verified with: Live MT4 account, GBPUSD, 3-day window (November–December 2023) — broker type and leverage not documented in available data.

Product Download Package Includes

• ✅ Experts:
  • Mekamaina EA v2.0_fix.ex4
• ✅ Setfiles:
  • Mekamaina Challenge Pass.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