When trading Forex, it is important to know when national holidays occur as they can serve as a good guide for forecasting market situations in this period. As a rule, there is a jump in market activity immediately after a holiday is over. With care, you can choose the most profitable time to enter and leave the market. The primary cause of the downfall of the forex market in December is Christmas. As soon as Christmas comes, a sudden dryness in the market will be introduced. Most of the currency pairs’ value comes down measurably.