In forex trading ... there are periods in which you can trade to make profit and periods in which you can incur losses ... therefore, worst period to trade is during festival period due to the fact that at that period, people will be going on christmas holidays so they will not have time to be there to analyse the market ... Banks usually close during the period for few days ... During this period, there is less price flunctuations which will not yield much profit ... in short on the major festivals people choose the withdraw the capital and the overall market growth is very slow.