Two traders can run the same XAUUSD Expert Advisor over the same calendar period and obtain different trades. That does not automatically mean that one of the tests is wrong.
For an M1 strategy that uses live intrabar movement, the broker feed becomes part of the test environment. Tick sequence, spread, server time, contract specification and execution assumptions can all influence whether an entry condition exists and how a trade is managed.
This matters particularly for short-horizon gold systems. Aurum Vector Motion evaluates completed-candle information together with live price velocity, acceleration and other intrabar conditions. It also rechecks spread and broker-sensitive values immediately before order submission. A different tick path can therefore change not only the fill price but whether a setup qualifies at all.
Contract specification is another source of confusion. A symbol called XAUUSD at one broker may not be economically identical to a symbol called GOLD at another. Point size, tick value, contract size, minimum volume, stop level and commission can differ. This is why I do not treat every symbol containing the word gold as interchangeable.
The reference Aurum Vector Motion test uses XAUUSD M1, every tick based on real ticks, a EUR 500 initial deposit, 1:500 leverage and fixed 0.01 lot. In the supplied reference report the period from 1 January to 15 August 2026 contains 290 trades, a profit factor of 2.12 and maximum equity drawdown of 2.01%. These are historical Strategy Tester figures from one broker data set, not a promise that another broker will reproduce them.
A better evaluation process is to use the Market demo, reproduce the reference conditions as closely as possible, then deliberately test another historical period and the exact broker intended for live use. If the behavior changes, investigate the reason instead of assuming that a single backtest is universal.
For fast strategies, “same EA” does not necessarily mean “same market data.” That distinction should be part of any serious evaluation.
Aurum Vector Motion is available in the MQL5 Market with a Strategy Tester demo. Historical testing is not a forecast, and users should reproduce tests with their own broker data before considering live use.
