NO.PZ2023041003000057
问题如下：
GI Stock and Option
Information
If the price of GI
stock approaches $75 over the next 30 days, which of the following changes in option
parameter measures will most likely be observed?
选项：
A.Decreases in vega and the absolute value of theta
Increases in vega and the absolute value of theta
A decrease in vega and an increase in the absolute value of theta
解释：
Typically, theta
is negative for options. The speed of the option value decline increases,
however, as time to expiration decreases. Vega is high when options are at or
near the money. During the next 30 days, the options will approach expiration
and approach being at the money.
A is incorrect.
C is incorrect.
Vega increases as the options become closer to at-the-money.
why would the absolute value of theta increase?
if theta is defined as the passage of time, as 30 days past. The time value would decrease. I am confused to why would theta increase.
