IRL. Abbreviation for In Real Life.. Often used in internet chat rooms to let people you are talking about something in the real world and not in the internet world. Also can be used to differentiate between an actor/actress and the character they play.
Put Call Parity Formula. The basic version of the Put Call Parity formula is; Call-Put = Stock-Strike. The formula supposes the existence of two portfolios that are of equal value at the expiration date of the options.The premise is that if the two portfolios have identical values at expiration then they must be worth the same value now.all-Put = Stock-Strike. The formula supposes the existence of two portfolios that are of equal value at the expiration date of the options. The premise is that if the two portfolios have identical values at expiration then they must be worth the same value now.
Delta is different for call and put options. The formulas for delta are relatively simple and so is the calculation in Excel. I calculate call delta in cell V44, continuing in the example from the first part, where I have already calculated the two individual terms in cells M44 and S44: =M44*S44.The calculation of put delta is almost the same, using the same cells.amma in Excel. The formula for gamma is the same for calls and puts. It is slightly more complicated than the delta formulas above: Notice especially the second part of the formula: You will find this term in the calculation of theta and vega too.