Hall of Fame: CBOE's Tom Knorring, ‘The Mathematician’

He studied math at Northern Illinois University, but dreams of a glittering career in computer science were temporarily derailed when he graduated at the height of the Arab Oil Embargo in the depths of a recession. With no one hiring computer science graduates, Knorring taught high school algebra and geometry for a year before the economy improved, and he found a job automating inventory systems at Walgreens Drug Company. He soon decided that he wanted a graduate degree, and since Walgreens didn