A guide to pure price gaming and capital efficiency! This article deeply dissects the underlying operating mechanism of Contracts for Difference (CFD), which “does not hold physical assets but only trades price differences”. A comprehensive look at the all-weather profit and hedging logic of long-short two-way trading in the bull-bear cycle, a detailed explanation of the high capital turnover efficiency brought about by instant opening and closing of positions within T+0 days, and a rational analysis of the double-edged sword characteristics of margin leverage trading to help you establish a disciplined risk control and position management system.