Expiration date Fundamentals Explained
这一“工资溢价”反映的是工人所获得的薪酬要比其能力所应得的多出多少。Low risk. Because you danger dropping only the premium after you go prolonged on a call option, this strategy offers a lower-risk way to invest around the underlying stock.In this article, the buyer and the seller of an option also enter into an se