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I develop and test MetaTrader 5 Expert Advisors with a focus on backtesting, forward testing, and risk management.

My products do not rely on martingale, grid, or averaging strategies.

Backtest results are historical test results only and do not guarantee future profits. Please test any EA in the Strategy Tester and on a demo account before live trading.
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Atsushi Katayama Published product

NINJA MT5 DOCTOR OVERVIEW NINJA MT5 Doctor is a free, non-trading MT5 environment-diagnostic utility that captures a one-time snapshot of the terminal, account, open charts, selected history and current host-chart symbol. It is an Expert Advisor-format utility, not a trading EA and not an indicator. The panel and input names are in English. WHAT IT CHECKS It reviews broker-server connection, terminal and account trading permissions, Doctor's own permission, trade mode and published sessions

Atsushi Katayama Published product

OVERVIEW NINJA Setup Confirm MT5 is a read-only utility for reviewing the current chart symbol after you have already found a candidate. It combines M15, H1 and H4 context, confirmed-bar setup checks, operating conditions and a reference risk plan in one panel. WHAT IT CHECKS The panel shows EMA trend alignment, directional RSI and ADX/DI, ATR activity, spread relative to ATR, session and quote status, and completed-bar breakout, pullback or continuation conditions. The transparent Market

Atsushi Katayama Published product

PRODUCT NAME NINJA Market Radar MT5 LANGUAGE English (en) SHORT DESCRIPTION Read-only MT5 utility that ranks visible Market Watch symbols with a transparent 0-100 Market Context Score. FULL DESCRIPTION IMPORTANT: ANALYTICAL UTILITY, NOT A TRADING SIGNAL NINJA Market Radar MT5 is a read-only multi-symbol utility. It ranks current market context to help users build a watchlist for their own chart review. BULLISH WATCH, BEARISH WATCH and the score are analytical labels only. They are not BUY or

Atsushi Katayama Published product

NINJA SYMBOL PASSPORT MT5 OVERVIEW NINJA Symbol Passport MT5 is a free read-only utility for reviewing broker-provided symbol specifications and current trading conditions. It can scan symbols in Market Watch or symbols available on the server, with an effective limit of up to 200. The panel and input names are in English. DATA CHECKED The panel shows the trading session, expiry, trade mode, estimated spread cost, estimated margin for a reference volume, and the spread-to-ATR ratio. Each symbol

Atsushi Katayama Published product

NINJA EA PORTFOLIO GUARD MT5 NINJA EA Portfolio Guard MT5 is an account-wide monitoring and configurable risk-control utility for MetaTrader 5. One instance on one chart can review manual trading and multiple Expert Advisors by Magic Number. It does not predict market direction, generate signals or open new trades. Critical account-wide scope CLOSE ALL, DELETE PENDING and automatic protection affect the entire MT5 account, not only the chart symbol. Manual trades, every Magic Number, every EA

Atsushi Katayama Published product

Ninja Trend Matrix MT5 Ninja Trend Matrix MT5 is a MetaTrader 5 indicator that brings multi-timeframe trend direction, relative strength and ATR-based volatility together in one dashboard. It helps you review the current market environment before making a discretionary decision or using another trading system. The indicator does not open, modify or close trades. It does not display entry arrows, take-profit levels, stop-loss levels, win rates or profit forecasts. Main features Classifies each

Atsushi Katayama
News about Ninja Trinity XAU Live signal

IMPORTANT UPDATE — EA CHANGED TO NINJA KAGEHANA XAU From 1 August 2026, this Signal has switched from Ninja Trinity XAU v1.48 to Ninja Kagehana XAU v1.02. All trades placed before the switch remain included in the Signal’s cumulative history and were generated by Ninja Trinity XAU. Trades opened after the switch are generated by Ninja Kagehana XAU. The current setup is XAUUSD M5, fixed 0.01 lot, no automatic compounding, on a dedicated real account with no manual trades or other EAs. Ninja

Atsushi Katayama Published product

Goldforge Gold Signals Overview Goldforge Gold Signals is a MetaTrader 5 signal indicator designed for XAUUSD (Gold). It evaluates completed M5 candles and combines M15 and higher-timeframe confirmation to display potential buy and sell setups directly on the chart. M5 is the recommended chart. If the visible chart timeframe is changed, the calculation engine remains M5-based. This product does not send or manage orders automatically. The user remains responsible for every trading decision and

Atsushi Katayama Published product

YENFORGE USDJPY v1.10 Adaptive Fusion 5 YENFORGE USDJPY is a discretionary signal indicator for MetaTrader 5. It evaluates confirmed M5 and M15 bars and displays BUY/SELL candidates together with reference target, stop and time-exit levels. This product is designed and validated primarily for Japanese traders using USDJPY data from the OANDA Japan MT5 Tokyo server. It can start on other broker feeds, but signal timing, prices, spread filtering and historical reconstruction may differ. The

Atsushi Katayama
Gold does not move in only one way. Sometimes XAUUSD breaks an important level and continues rapidly. Sometimes price stretches too far, loses strength and returns toward a recent range...
Atsushi Katayama
Ninja Trinity XAU has been updated to version 1.48 and was published on the MQL5 Market after passing validation on July 29, 2026. The EA remains designed for MetaTrader 5 and XAUUSD M5...
Atsushi Katayama
Gold does not stay in one market condition. At times, XAUUSD moves through an important level and continues strongly...
Atsushi Katayama
Two traders can test the same Expert Advisor over the same period and still receive different results. This does not always mean that the EA or the Strategy Tester is wrong...
Atsushi Katayama Published MetaTrader 5 signal
Ninja Trinity XAU Live
Price: 30 USD, Growth: 15.90%
Ninja Trinity XAU Live — Automated Gold Trading This MetaTrader 5 signal uses Ninja Trinity XAU to trade XAUUSD (gold). The EA combines multiple trading strategies with market-context analysis, using M5 as its core timeframe. It does not use grid trading, martingale, or averaging down to recover losses. MQL5 Evaluating Performance Before subscribing, review this signal’s trading history, drawdown, and track-record length. Consider losing periods as well as profitable ones. Risk Notice Losses and
Atsushi Katayama
Hello traders, In this post, I would like to share a developer note about the thinking behind Ninja Trinity XAU and the direction of its latest version...
Atsushi Katayama
Ninja Trinity XAU is a MetaTrader 5 Expert Advisor designed for XAUUSD or GOLD on the M5 timeframe...
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