单向双向：某些产品的手续费只在开仓时收取，有些则在开仓和平仓时都收取； The sensitivities strategy [2] consists of very first calculating option sensitivities often known as the Greeks due to the popular exercise of representing the sensitivities working with Greek letters. The equilibrium sheet is often introduced as of the final working day of the corporate’s fiscal 12 months. Trader... https://franciscoekpwn.like-blogs.com/33994481/not-known-details-about-pnl