Abstract: In this paper we compare Weibull and Mixed-Lognormal-Weibull Option Pricing Models. The data for this study were obtained from Australian Clearing House of Australian Securities Exchange (ASX) which consists of 50 enlisted stocks in the clearing house as products of monthly market summary for long term options from 3rd January, 2017 to 31st December, 2019. The data were properly arranged according to 25, 27, 28, 29 and 30 maturity days.