Description

Gap Fill Reversion EA

Short Tagline: A mean-reversion strategy that trades the statistical tendency of price gaps (weekend o…

Short Description:
Gap Fill Reversion EA is a fully automated mean reversion / gap fade. Expert Advisor for MT4 and MT5. A mean-reversion strategy that trades the statistical tendency of price gaps (weekend or session opening gaps) to fill back toward the prior close. Built-in risk controls and market filters keep execution disciplined across live and demo accounts.

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Overview

A mean-reversion strategy that trades the statistical tendency of price gaps (weekend or session opening gaps) to fill back toward the prior close. It enters counter to the gap direction, targeting the pre-gap price as the fill objective.

Features

• Prior close / gap measurement
• ATR(14) for gap-size qualification
• RSI(14) for exhaustion confirmation
• Configurable stop-loss, take-profit, and trailing logic
• Session, spread, and news-time filters for disciplined execution
• One-trade-per-bar / duplicate-signal protection
• Clean, single-file MQL4 and MQL5 implementations
• No hidden logic — every input is exposed and documented
• No martingale, no grid, no hidden recovery logic

Trading Strategy

Entry logic: – At session/week open, measure the gap vs the prior close.

• Gap up: short toward the fill once early momentum stalls (bearish rejection / RSI > 60), targeting the prior close.
• Gap down: long toward the fill on a bullish rejection / RSI < 40.
• Only trade gaps within a qualifying size band (not too small, not runaway).

Exit logic: – Exit at the gap-fill level (prior close) or partial fill target; time-stop if unfilled by session mid.

Stop-loss: SL beyond the gap extreme (the open swing high/low) plus an ATR buffer — a continued gap invalidates the fade.

Take-profit: TP at the prior close (full fill); scale 50% at 50% fill.

Trailing stop: Trail toward the fill target once 50% filled.

Break-even: Break-even after 50% of the gap is filled.

Why it works: Exploits a well-documented statistical tendency.; Clear target (prior close)..

Recommended Settings

• Timeframes: M15, H1 (evaluated at session/week open).
• Instruments: US30, NAS100, US500, GER40, EURUSD (weekend gaps).
• Account type: ECN/Raw spread accounts preferred
• Minimum recommended balance: $500+ (adjust lot sizing to your risk tolerance)
• VPS: Recommended for 24/5 uptime and consistent execution
• Risk management: Risk 0.75% per trade. Max 2 open. Skip oversized “breakaway” gaps that tend not to fill.

Supported Markets

Index CFDs (frequent opening gaps) and forex weekend gaps.

Supported Brokers

Compatible with any regulated MT4 or MT5 broker offering standard order execution (market or instant execution). Works with ECN, STP, and standard account types. No broker-specific dependencies.

Installation Guide

1. Download the .ex4 (MT4) or .ex5 (MT5) file from your purchase delivery.
2. Open MetaTrader, go to File → Open Data Folder.
3. Copy the file into MQL4/Experts (MT4) or MQL5/Experts (MT5).
4. Restart MetaTrader or right-click Expert Advisors in the Navigator and select Refresh.
5. Drag the EA onto the chart of your chosen symbol and timeframe.
6. Enable Allow live trading (and Allow DLL imports if prompted) in the Common tab.
7. Adjust inputs to match your risk profile, then click OK.
8. Confirm AutoTrading is enabled in the toolbar.

• Session filter: Evaluate only at session/week open windows; flat by session close.
• Spread filter: Reject if spread > 1.5 index points; opens can have wide spreads.
• News filter: Gaps driven by major news often don’t fill — avoid fading news-gap runaways.
• Volatility filter: Qualify gap size against ATR; require the gap to be within a tradable band.

Risk Disclaimer

Trading forex and CFDs carries a high level of risk and may not be suitable for all investors. Past performance, backtest results, and simulated outcomes are not indicative of future results. This EA does not guarantee profits. Always test thoroughly on a demo account before deploying real capital, and never risk funds you cannot afford to lose.

Version

v1.0.0

Support

Support is provided through the marketplace messaging system. Please include your broker, symbol, timeframe, and EA version when reporting an issue.

Updates

Free updates are provided for bug fixes and compatibility improvements. Feature updates may be released as versioned upgrades.

FAQ

Q: Does this EA work on both MT4 and MT5?
A: Yes, separate optimized builds are provided for each platform.

Q: Can I run this on multiple pairs at once?
A: Yes, attach separate instances to separate chart/symbol combinations.

Q: Does it use martingale or grid recovery?
A: No. This is a pure signal-based strategy with defined risk per trade.

Q: What timeframe works best?
A: M15, H1 (evaluated at session/week open). for the cleanest signals, but the EA can run on other timeframes with adjusted inputs.

Q: Is a VPS required?
A: Not required, but strongly recommended for uninterrupted 24/5 operation.