TickOptionComputation

Field	Type	Description
`reqId`	`int32`	Unique request identifier used for tracking across EWrapper
`tickType`	`int32`	Type of data the tick represents.
`tickAttrib`	`int32`	Defines TickAttrib.canAutoExecute.
`impliedVol`	`double`	Implied volatility of the Option.
`delta`	`double`	The stock’s Delta. For orders on BOX only.
`optPrice`	`double`	The option price
`pvDividend`	`double`	The present value of dividends expected on the option’s underlying
`gamma`	`double`	The option gamma value
`vega`	`double`	Option greek Vega.
`theta`	`double`	Option Greek Theta
`undPrice`	`double`	Current price of the underlying contract.