LITTLE KNOWN FACTS ABOUT IMPLIED VOLATILITY.

Time Decay Over time and as the option techniques its expiration, enough time benefit decreases considering that there is fewer time for an option buyer to earn a income.獎金，津貼；加價；附加費 We're prepared to spend a premium for the most effective place. 為了得到最好的地段，我們願意多付些錢。An option seller might