Good article. Anyone that lives in Chicago knows Jump pretty well. It's a household name. They are one of the older firms.
I live in Chiraq and it is not a household name by any means. Just a bunch of parasitic computer nerds with pot bellies and spindly limbs. You know you are a talent less hack if you have pay for access to an order book on exchanges and front run widows, orphans, and pensioners for pennies and ticks.