a怎么回事现在忙吗下次在聊吧很高兴认识你 How a matter will the busy next time be chatting now knows you very happily[translate] aEven sufferer the cry, you couldn't hear what i said word 受害者啼声,您不可能听见什么我说词[translate] ...
As the time to expiry falls, the chance that an option will end “in-the-money” (or not) becomes less uncertain, making the option value fall (time decay) even if the stock price has barely changed. With an increase in volatility, there is a higher chance that an option will reach ...