Chicago Mercantile Exchange (CME Group), Citadel along with some of the top hedge funds in the industry. Regardless, there's a lot of day traders in Chicago @ https://www.meetup.com/topics/daytraders/us/il/chicago/ wrbtrader
I knew you were being sarcastic (funny) but I wanted to make sure someone new / naive doesn't take what you said "as fact". Too much fake news these days wrbtrader
chicago and nyc used to be major trading centres as well as london. more young traders are shifting to new trading hubs like makoko for chicago, i didn't like it and found it cold even in the summer. way too many crazy-looking black people. weather much nicer in makoko