NLAuto_Gaitame_USDJPY_Ver1.2｜News Resilience × Time Compression for “Grow While Protecting” USDJPY-Only EA

The main features are the “News Lock,” which automatically avoids around major indicators, and the “Time Compression Risk Management,” which progressively narrows the SL/TP width as time passes.
While limiting exposure to sudden moves,ATR×Multiplierprovides a reasonable take-profit/stop-loss,BE (Break-Even) + Trailingto lock in profits. Entries arevia Short-term/Long-term MA × RSIto improve accuracy,automatic lot sizing by Risk%orfixed lotscan be chosen. It also supports hedging (when broker permits) andscalping to day-tradingfor dynamic operation.

Backtest results for 2 years with 100% history quality using FX Finest MT5

The figure above shows backtest results from 2023-09-01 to 2025-09-21 using FX Finest MT5 with 100% history quality

EA name: NLAuto_Gaitame_USDJPY_Ver1.2

Initial margin: JPY 1,000,000

PF:0.00 (2 years, 144 trades, 144 wins, 0 losses)

RF:6.22

DD:16.15%

Logic Overview

• Trend × Momentum Synthesis：Leverages the advantages of short-term MA and long-term MA plus an RSI threshold to suppress excessive contrarian/ trend-following bias.

• Rationalization of Exits：ATR×Multiplierused to set SL/TP initially →width is progressively reduced by Rate% as time passesto limit long-hold drawdown and delayed profit-taking.

• Profit Protection：When a certain unrealized profit is reached,BE activated, thereafterTrailingis used to raise it.

• Additional Entry (Optional)：If the remaining distance to SL is below a specified %,multiply lot by a multiplierto press an advantageous position.

• News Lock：Automatically avoids around releases by specified importance (★/★★/★★★) and a window before/after the release,◯ minutes. If necessary,close holdings within the release time.

Main parameters (defaults and recommended guidelines)

• ATRMultiplier=61：SL/TP width = ATR × multiplier (follows market volatility)

• Fast/Slow MA=84 / 960,RSI=69,Overbought/Oversold=67/35,TimeFrame=M30

• RiskPercentage=10%：Account balance × risk%でAuto Lot（Fixed lotに切替可）

• BE：Break-EvenActivation=81pips / Confirm=100pips

• Trailing：95pips（Profit extension）

• Time Compression：Interval=1740 minutes (about 29 hours),Rate=80%（Each step reduces SL/TP width by ×0.8 with a new feature）

• News：Importance=★★★,Pre/Post=60/60 minutes,Time-close=ON (default prohibits new entries 60 minutes before major indicators; if positions exist, forced close; new entries allowed 60 minutes after indicator)

• Add Entry：（Optional）SlRatio%reaches,Lot×Multiplieris added

Where to Use

• USDJPY traders who want to avoid the “landmines” of jobs data and key official remarks.

• Conservatively manage risk while hoping to accumulate winsScalp to day-trading operations

• Automate stops/closures around indicators to improve stability of unattended operation

Appeal Points

• With News Resilience,preemptively block the seeds of large losses

• Auto Lotfor capital-aware, consistent risk management

• Hedging support（broker policy）,easy optimization/backtesting

※This EA does not guarantee future profits. We recommend parameter optimization and proper risk settings according to market conditions.

Why News is Dangerous (Market Microstructure)

• Liquidity can thin out in an instant：The order book becomes thin →Spread widens・quote jumps occur.

• Price can “spike”：Ticks break throughGaps, stop orders or SL fill at unexpected prices (slippage).

• Algo initial moves：Fast algos rush in →Fake breaks andwhiplashtend to occur.

Concrete damage patterns

1. Spread wideningExample: USDJPY normally 0.2–0.4 pips → around news 2–10 pips or more. Market orders/stop orders incur immediate costs.

2. Slippage（worsening of pending orders) 1 lot (100k) USDJPY10 pips slippage ≈ ¥10,000 of extra loss.

3. Gap executionPrice jumpsand orders are “jumped over”, not filled at desired price.

4. Requotes / order rejectionExceeding maximum tolerable slippageOrder error→ re-entry becomes more disadvantageous.

5. Forced stop-out triggeringRapid adverse move expands unrealized losses,margin maintenance drops rapidly.

6. Malfunction / over-quoteHigh-velocity price action (wicks) causes consecutive fills → quick reversal and stop-loss chaining.

7. Correlation breakdownNormal inverse/positive correlations break down,hedging becomes ineffective.

8. Broker rule changes“Before news: Close Only”, “Stop level expansion”, “temporary margin rate hikes” etc. temporarily disrupt strategy.

Common misconceptions

• “Indicators move a lot → you make money.”If you miss the direction and timing, you die instantly.

• “SL exists, so you’re safe” → **slippage may cause SL to be “passed through”**, leading to bigger losses than expected.

• “Scalping can survive” →Execution delay + wide spreadserode the edge.

Practical measures (discretionary and EA-same)

• Trading Stop Window：According to importance (★/★★/★★★), halt before/after the release（e.g., 60 minutes before / 60 minutes after）

• Position management：Cross-week announcements shouldlighten positions, orclose all. (Default: close all)

• Risk% reduction：Indicator dayshalve the lot orlower maximum loss.

• Quality of pending orders：Market-order SLを想定し、滑りコストも損益計算に織り込む。

• Volatility linkage：ATR連動 SL/TP、Trailingで過度な引っ張りを抑制。

• Calendar alignment：Time zone / DSTのズレに注意（サーバー時刻基準で管理）。

• Broker notices：Indicator前のtemporary rule changes（margin rate / max quantity など）を都度確認。

• Infrastructure：Low-latency VPS・Stable connection to reduce execution delays and disconnections.

NLAuto_Gaitame_USDJPY_Ver1.2で落とし穴完全回避！

• Economic News Filter：EconomicFilter=true、Importance isEconomic3(★★★) or higher,EfStartTime/EfEndTimeareadjusted to 60–90 minutes. (Default 60 minutes)

• Time Compression：RiskReductionInterval=1740、RiskReductionRate=80でlong-duration holding risk reduction。

• BE/TS：EnableBreakEven/EnableTrailingStop=trueでlocking in profits from unrealized gainsを自動化。

• Additional Entry：AddEntryはNews week is OFF推奨。（Default OFF）

Economic news is a risk to execution quality rather than direction, and can be fatal. By embedding pre-stop, reduction, and pull-back rules into the system, you can automatically ensure “don’t chase, tighten, and close early,” reducing both the frequency and depth of drawdowns.

MT4 was difficult to avoid economic news

MT5 has an official economic calendar API (Calendar functions) built-in, while MT4 had no official API and depended on external sources, making implementation and maintenance hard──That is the essence of the difference.

What’s different?

MT5 (easier)

• Official API：CalendarValueHistory / CalendarEventById / CalendarCountriesand others allow direct retrieval ofimportance, currency, and time.

• Time alignment：server time and DSTare already synchronized on the terminal

• Filtering：Importance (★/★★/★★★), Pre/Post minutesand other criteria can be filtered in code

• Maintenance：data source is official and in a consistent format, so it’s less prone to breaking

Why news avoidance is difficult on MT4

• No official API：WebRequest + external sitesor custom CSV/indicators dependencies

• Configuration reliance：WebRequestrequires manual URL permissionsand can fail in some environments.

• Inconsistent formats：JSON/HTML/CSV differences by site→ parser implementation and breakage handling required

• Time discrepancies：server time, local time, UTC, DSTneed to be corrected manually

• Reliability：rate limits, changes, or outages on sitescan cause immediate failure and high maintenance costs

Practical impact

• Implementation time：MT5 can be completed in dozens of lines; MT4 requires data acquisition, parsing, and time-zone correction

• Stability：MT5 isless prone to breaking／MT4 ismore susceptible to external changes

• Reproducibility：MT5 makes it easier to reproduce the same decisions in backtesting and live trading

Note: If you do MT4

• Manual calendar stops for important events（EA flag）

• When integrating external indicators/scripts, ensureURL permissions, DST correction, and exception handlingare strictly applied

• As an alternativeauto-stop using volatility indicators (e.g., ATR)could be used as well

In short,MT5 is easy and robust because it connects directly to official data,MT4 is fragile because it relies on external sources, which is the essence.