Ophir has worked as an equity option market maker and prop trader on the NYSE ARCA exchange floor since Feb. 2008. Prior to working on the exchange floor, he worked as a structurer on the Countrywide trading desk and before that as the Director of Client Services and Research for the quant modeling firm Audit Integrity. He has a Masters degree in Financial Mathematics from Stanford University. He also has an MBA in finance and an undergraduate degree in quantitative economics with an area of focus in mathematics.