Anti-Martingale Demonstrator

"Anti-martingale" (also called reverse martingale) is often pitched as the safe alternative to martingale because it never chases a loss by doubling down. That is true, but it is not the same as being safe outright: any scheme that scales up during a winning streak is, by construction, at its largest size exactly when the streak is most likely to end. This EA is built to show that plainly rather than to hide it. The trading signal is a deliberately ordinary fast/slow SMA cross, so what is being demonstrated is the sizing behaviour, not a clever entry. After every closed trade, the position size for the next trade is set from the result of this one: multiplied by InpWinMultiplier on a win, and either reset fully to InpBaseLots or cut by InpLossMultiplier on a loss, with a hard ceiling at InpMaxMultiplier times the base lot no matter how long a streak runs. Every time one of this EA's own trades closes, its real pip result is replayed at a fixed InpBaseLots size to build a second, simulated equity curve in parallel with the real one. Both curves are driven by exactly the same sequence of wins and losses, so the chart comment's comparison between "real anti-martingale P/L" and "simulated flat P/L" is a fair one - it shows what the variable sizing actually bought or cost against doing nothing clever at all, on the same trades, not on two different signal runs that happened to disagree by chance. Notes and limitations - This is an educational demonstrator, not a strategy recommendation. The SMA cross signal is intentionally plain; the point is the sizing rule. - The simulated flat-sizing curve ignores swap and commission timing differences that a real fixed-lot run might show, though it does use the same tick-value-based money conversion as the real trade. - Trade history from before the EA was attached is not replayed into the comparison - the simulated curve starts from zero at attach time. - One position at a time, tracked by InpMagicNumber. An opposite cross closes and reverses; a same-direction cross while already positioned is ignored. - InpMaxMultiplier is the only thing standing between a long winning streak and an oversized position - treat it as the most important input here. - On the MQL5 build, entries refuse on a netting account if the chart symbol already carries a position under a different magic number, and the flat-sizing comparison skips (but still sizes) any closed trade whose opening deal cannot be located in history - see MQL4 VERSUS MQL5 DIFFERENCES above.

Expert advisor · MT4 · v1.0 · Free

Tags: Martingale · Risk & Lot Size · Moving Average · MT4 Expert Advisor · MQL4 Source Code

Expert advisors (EA) for MT4 & MT5 · PolyMaria