First, it is important to clarify a basic concept: in all exchanges, long positions and short positions are always matched on a one-to-one basis, meaning a 1:1 relationship. For example, if Xiao Ming opens a long position of 10 Bitcoin contracts, this means that another trader, or possibly several traders, have opened a total of 10 Bitcoin contracts in short positions at the same price. A crypto derivatives market cannot function without counterparties; otherwise, trading would not be possible. Based on this, crypto long/short ratios can be categorized from different perspectives, mainly including the Taker Long / Short Ratio, Exchange Account Long / Short Ratio, Top Trader Account Long / Short Ratio, and Top Trader Position Long / Short Ratio.