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] will involve first calculating choice sensitivities generally known as the Greeks as a result of prevalent practice of representing the sensitivities making use of Greek letters. Earnings for every typical share — diluted [footnote 2: Diluted by assumed work out of stock-based mostly ... https://zanderxlbrg.blogdomago.com/33107486/the-2-minute-rule-for-pnl