In algorithmic gold trading, many traders focus heavily on strategy logic, signals, and backtest results while overlooking transaction costs. These costs are often treated as minor or fixed, but in reality they are dynamic and can significantly impact profitability. Even a strategy that looks strong in testing can fail in live trading if costs are not properly accounted for, gradually eroding any statistical advantage.
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The key idea is that profitability must be evaluated after costs, not before. A strategy needs a strong enough edge to absorb real world execution expenses, and systems should actively filter trades based on current cost conditions. Instead of adjusting position size, traders should avoid trades that do not justify their full cost. In the long run, consistent performance depends as much on execution discipline as it does on strategy quality.