Quote from chicagodon:
Thank you, I completely agree with what your said. I calculated the delta ratio and saw that it was only around .25 which was lower then it probably should be, I have 5 though. I'm going to study more about synthetics this weekend.
I feel like I read Cottle and Nattenburg and understand it well, but practicality it's entirely different. Thanks for the link, I went back to Cottles arbitrage chapter and thumbed through it again. Are these types of call parity trades even available anymore? Meaning I assume someone has written an algo already to spot the arbitrage and execute it before I could even move my mouse. If not, I would assume to make it worth the retailer trader it would have to be pretty large to be able to cover all the costs associated with doing this. Again I could be completely off and I value everyone's help as I'm very new to options trading.
so if you have 5 you have 125 deltas, where this is valuable is that you know in advance how much you can make or lose. Regarding your question it is the computers that are really on the other side of your trade like Mav said. How would you hedge this position for example if GMCR was halted next week?