请教问题: 关于VIX

coexist

今天CPC 接近1左右, 为什么VIX确下挫5%.
难道是CPCE太低,可CPCI蛮高的.
谢谢指教.

Elephant

VIX收盘13.10,可是Apr14P要价0.40X0.50,要是股票什么的,起码$1了,怎么这么便宜?

sorry

hedge with puts don't necessarily means more fear
just like home insurance, you buy to protect, but no fear for disasters

cougar

It has no relationship with CPC or CPCE. It goes with VIX future and VIX future (cash) dropped a lot today.

Elephant

COUGAR

coexist

quote from Wiki:
The VIX is quoted in percentage points and translates, roughly, to the expected movement in the S&P 500 index over the next 30-day period, which is then annualized. For example, if the VIX is 15, this represents an expected annualized change of 15% over the next 30 days; thus one can infer that the index option markets expect the S&P 500 to move up or down 15%/√12 = 4.33% over the next 30-day period.[6] That is, index options are priced with the assumption of a 68% likelihood (one standard deviation) that the magnitude of the change in the S&P 500 in 30-days will be less than 4.33% (up or down).

The price of call and put options can be used to calculate implied volatility, because volatility is one of the factors used to calculate the value of these options. Higher (or lower) volatility of the underlying security makes an option more (or less) valuable, because there is a greater (or smaller) probability that the option will expire in the money (i.e., with a market value above zero). Thus, a higher option price implies greater volatility, other things being equal.