Hey Mike, I see that Аlan has given you detailed information so I’ll elaborate on your latest question.
You’re on the right track – it could definitely be due to spreads, but there are also a few other common reasons why the MT4 and MT5 versions of the same expert advisor (EA) behave differently:
– MT5 might use RAW or ECN pricing with lower spreads but commissions, while MT4 might have wider spreads with no commission.
– Differences in execution speed, slippage, or margin requirements could affect trade conditions.
– MT5 uses different order execution (position-based vs MT4’s ticket system)
Also, if the MT5 and MT4 platforms are at different brokers, then the results will be different for sure as brokers have slightly different pricing or candle data, which affects indicators or signals.
For context, I’m sharing a link to the video where we showed and shared these EAs for free.