The decline in cryptocurrency prices and the losses incurred due to falling prices. This is because most users only trade through spot trading. However, it is always possible to make profits during both rises and falls through futures trading. Some believe that futures trading is gambling and you can lose all your money, but you can use futures without any risk by ensuring that your futures balance covers the value of the trade. For example, when opening a long position for $ETH at an amount of 100$ , your futures balance should be 100$ , which means your liquidation amount is zero, making it impossible for you to lose money. Similarly, when making a short position, the liquidation price is 100% of the original price, which means the likelihood of loss is very low