May I politely disagree. A lot of software in financial institutions is written in Java (maybe this is a cultural bias because I happen to live in Western Europ

May I politely disagree. A lot of software in financial institutions is written in Java (maybe this is a cultural bias because I happen to live in Western Europe). The fact that some of the HFT software is (or was) written in Haskell is pretty amazing because when you first look at it, it does not appear to be a good language for being very fast.