implied_volatility
Function Name: implied_volatility
Tags: Relation
Category: Volatility
The estimated volatility of a security's price. In general, implied volatility increases when the market is bearish and decreases when the market is bullish. This is due to the common belief that bearish markets are more risky than bullish markets In addition to known factors such as market price, interest rate, expiration date, and strike price, implied volatility is used in calculating an option's premium. IV can be derived from a model such as the BlackScholes Model.
Note:
The calculation is based on BlackScholes Model. The chart that study is applied to must have two securities displayed: One for SpotPrice and the other for OptionPrice.
Parameters:
StrikePrice: Strike price of the option.
IsCallOption: If call option, set to True. If put option, then set to False.
InterestRatePrecent: Central bank interest rate.
DaysPerYear: Number of days in a year. This number is used to divide the number of days remaining so it can be multiplied with interest rate.
ExpDay, ExpMonth, ExpYear: Date of option expiration.
Read more: http://www.investopedia.com/terms/i/iv.asp#ixzz1hG2b6o2n
StrikePrice 


Default Value: 50  Minimum: 0  Maximum: 99999 

Type: Numeric 
IsCallOption 


Default Value: 1 

Type: Boolean 
InterestRatePercent 


Default Value: 2  Minimum: 0  Maximum: 100 

Type: Numeric 
DaysPerYear 


Default Value: 365  Minimum: 365  Maximum: 366 

Type: Numeric 
ExpDay 


Default Value: 15  Minimum: 1  Maximum: 31 

Type: Numeric 
ExpMonth 


Default Value: 6  Minimum: 1  Maximum: 12 

Type: Numeric 
ExpYear 


Default Value: 2012  Minimum: 0  Maximum: 9999 

Type: Numeric 