First of all, in the foreign exchange market, more than 80% investors are trading with MT4. However, the price displayed on MT4 is the selling price by default, not the buying price. So many investors can't make a deal when they see that the price has exceeded their closing price. In fact, this is just the selling price, not the buying price. Investors should also take the price difference into account when looking at the price. For example, the FXCM platform displays the selling price, and some platforms do not display the selling price. Different platforms display differently, so understand this before choosing a platform. In the second case, when the foreign exchange rate fluctuates violently, such as the release of some non-agricultural data or the announcement of meeting minutes by the central bank, the exchange rate fluctuates very violently at these times, and it is very likely that there will be an exchange rate gap. If the price of the investor's pending order is just in this gap, it may happen that the pending order cannot be closed.