There are lots of ways authors of trading robots can manipulate backtest results... for example, if they know that historically that the trading robot did badly in March last year, or even a particular date.. they can put in code which says something like 'if date = March 2020 and June 2021 then don't trade' .. therefore when you run your backtests, the trades in these time periods are missed and give you a fantastic looking backtest. You can search on Google 'metatrader history shift test' and 'metatrader symbol shift test' or even 'scam trading robots' .. there are plenty sadly!
Hello friends, sharing here the KTM forex trading system (because of the color Orange) along with the trade logs of of 2 trades i tool yesterday using this system......Hope some of you benefit :love::love::love::love:
Slippages, spread ... you can add commissions to this list, too. Many scalping systems don't work with high commissions per trade, eating up all profits.
i.e. if you run the same strategy script simultaneously on a varity of different brokers/accounts, you get completely different outcomes.
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