If your trade didn't close immediately, it's important to understand the role of liquidity in the market. Liquidity refers to the ability to buy or sell an asset without causing a significant impact on its price. In highly liquid markets, orders can be executed quickly because there are numerous buyers and sellers at any given time. However, during periods of low liquidity, there might not be enough market participants to take the opposite side of your trade immediately. This can happen during off-market hours, major news events, or in less popular currency pairs. Low liquidity can lead to slippage, where the trade is executed at a different price than expected. Therefore, liquidity is crucial for the speed and efficiency of trade execution in the forex market.