Trading Outcome Issues

Why didn’t my order fill at the expected price?

Fills use the Quote, which incorporates dynamic Impact Cost based on your order size. This ensures your execution price reflects real liquidity conditions. Check your execution report for details on average fill price and impact cost.

Why didn’t my stop-loss or take-profit trigger when the Last Price reached the target?

Stop-loss and take-profit orders trigger based on Mark Price, not the Last Price of a single trade. Mark Price is a weighted, smoothed fair value that prevents accidental triggers caused by sudden price spikes, protecting your positions.