I have an idea, let's see if it works. For example, I buy one Ether Spot at the current price, then short one Ether in a contract. If the price rises, I close both, basically breaking even. If there is a big dump, I close the contract's profit, doesn't that mean I got one Ether Spot at a low price ?

Is there a price gap of more than ten points in the spot contract?

停车的怎么找自己小号，刷了几个小时也没遇到

我去，说好的牛呢