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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
Gold does not move in only one way. Sometimes XAUUSD leaves a range and continues with force. Sometimes it stretches too far, loses energy and returns toward a recent balance area...
Atsushi Katayama Published product

NINJA Trend Matrix MT5 Pro A read-only MetaTrader 5 indicator combining a multi-timeframe market environment dashboard with a selectable chart event layer based on completed candles. Multi-timeframe dashboard Inspect the current symbol across DEFAULT, CUSTOM or ALL MT5 timeframes. Review direction, relative strength and ATR volatility together, move or minimize the panel, and optionally receive full-alignment notifications. Pro chart analysis Display EMA20 and EMA50 on the current chart. Select

Atsushi Katayama Published product

MTF OPEN LINE PRO MT5 OVERVIEW MTF Open Line Pro MT5 is a read-only MetaTrader 5 indicator that organizes multi-timeframe reference opens and closed-bar setup events on one chart. It places no orders. It helps you review how price behaves around preselected levels. The panel, input names and messages are in English. LEVELS AND PROFILES Use the Scalping M5, Day M15, Day H1 or Custom profile. Up to eight level slots can combine current period opens, previous-period opens, the year open

Atsushi Katayama
The most dangerous trade is often the one placed immediately after a loss. The Stop Loss is hit. You keep watching the chart. Price starts moving back...
Atsushi Katayama
You moved the Stop. The position may look the same, but the trade is no longer the same. The Entry is unchanged. The ticket is unchanged. The chart still shows the same position...
Atsushi Katayama
One percent risk is not a lot size. It does not mean 0.01 lot, one mini lot, one percent of the required margin, or a position whose notional value equals one percent of the account...
Atsushi Katayama
A high win rate can feel reassuring. It can also hide a losing payoff structure. A strategy can win 60% of its trades and still lose money...
Atsushi Katayama
When you trade USDJPY manually, the difficult part is not simply finding more arrows...
Atsushi Katayama
Gold moves fast. Goldforge waits for the source bar to close. An unfinished XAUUSD candle can look convincing for several minutes and still close in a very different shape...
Atsushi Katayama
The same symbol name does not always mean the same broker rules. EURUSD, XAUUSD or US500 can look familiar on the chart while the contract and execution conditions behind the symbol are different...
Atsushi Katayama
Gold does not stay in one regime. It can spend hours stretching away from a recent balance area and then reverse. At other times, it can leave a well-defined structure and continue with momentum...
Atsushi Katayama Published product

NINJA SYMBOL PASSPORT MT5 PRO OVERVIEW NINJA Symbol Passport MT5 Pro helps you review broker-provided symbol specifications and current execution conditions before making your own trading decision. It combines multi-symbol diagnostics, a non-directional preflight view, hypothetical order checks, change tracking, confirmed events, and local reports in one dashboard. The panel and input names are in English. SIX DASHBOARD TABS SYMBOLS shows sessions, expiration, volume rules, spread cost

Atsushi Katayama
A clean diagnostic snapshot can be correct when it is created and still become outdated later. The terminal may be connected. Algo Trading may be enabled...
Atsushi Katayama
A trading account can look calm when each chart is viewed separately. One EA may have only one open position. Another EA may appear to be operating within its own rules...
Atsushi Katayama
Finding a candidate is only the beginning. A symbol may rank near the top of a watchlist, show clear directional context or look interesting at first glance. That still does not complete the review...
Atsushi Katayama
Opening one chart is easy. Reviewing twenty or thirty symbols is different. When many instruments are visible in Market Watch , the first problem is often not how to enter a trade...
Atsushi Katayama Published product

NINJA MT5 DOCTOR PRO OVERVIEW NINJA MT5 Doctor Pro is a read-only MT5 utility that includes every detailed check from the free Doctor and adds continuous environment monitoring. It runs in Expert Advisor format, but it is neither a trading EA nor an indicator. A one-time FULL CHECK and timer-driven monitoring are available from one dashboard. Panel and input names are in English. FULL DIAGNOSIS FULL CHECK performs 15 environment checks: connection; terminal, account and Doctor permissions; open

Atsushi Katayama
A symbol name is only a label. It is not the complete contract specification. EURUSD may appear to be the same symbol at two brokers, but the trading conditions behind that name can still differ...
Atsushi Katayama
An Expert Advisor can be attached to a chart, show no obvious error and still open no trade. That does not automatically mean the EA is broken...
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