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 system [two] entails initially calculating solution sensitivities known as the Greeks due to the prevalent apply of symbolizing the sensitivities working with Greek letters. Profit per popular share — diluted [footnote 2: Diluted by assumed exercise of inventory-dependent compensation awards utili... https://shintaroc084qtx6.wikitron.com/user