Send us Fan Mail I sat down with Tom Sosnoff, one of the most successful entrepreneurs in financial services. Tom spent 19 years on Chicago’s CBOE trading floor and then left to build Thinkorswim, the first online broker specialized in options, which he sold to TD Ameritrade for $600 million. He then built Tastytrade and sold it nine years later for a billion dollars to IG Group. He is now building Lossdog, a career optimization platform to help fight wealth inequality. What I enjoyed the mos...