Blog / Market Insights
Strategy drift is what happens when a rule set that once produced a consistent result on one platform slowly starts producing a different result — often because of subtle execution differences between MT4 and MT5, not because your rules changed.
MT4 and MT5 share a family resemblance but differ under the hood: order execution models, the way partial fills are handled, available timeframes, and even how certain indicators calculate can diverge slightly between the two platforms. For a discretionary trader these differences are usually invisible. For a systematic strategy running the same logic on both, they can compound over hundreds of trades.
Strategy drift is the cumulative result of that compounding — not a single dramatic event, but a slow separation between 'what the strategy should be doing' and 'what it's actually doing' on a given platform.
Because Solven4 syncs trade data from both MT4 and MT5 accounts into the same analytics framework, it's possible to run the same strategy on both platforms and compare the resulting Trading DNA profiles side by side — execution timing, slippage patterns, and drawdown behavior included.
When the two profiles start to diverge in a way that isn't explained by normal variance, that's the earliest signal of drift, often visible in the data weeks before it would show up as a meaningful difference in account performance.
The fix is rarely to abandon one platform. It's usually to isolate the specific behavior that's diverging — order fill speed during news, spread widening at session opens, or partial-close handling — and adjust the strategy's execution rules for that platform specifically, rather than assuming both will always behave identically just because the underlying logic is the same.