Option Pro was designed and created by a highly successful Chicago Board Options Exchange floor trader who traded for his own account for nine years before "retiring". This trader was one of the charter members of the OEX pit when trading started in 1983. Very early on, this trader wrote several computer programs to help him profit in his own option trading. These programs evolved and grew as it became clear to him how options really worked. Along the way, a proprietary technique for modeling options prices was created and remains the most accurate way we know of to explain option pricing. These programs were used daily throughout this trader's career and have remained his personal property -- UNTIL NOW.