my previous comment "mostly C++" got down voted. I happen to work at a firm in this industry. C++ is the language used most in HFT.
Aside from this, you can verify this by just looking at the job postings.
Ask HN: What programming languauges does the High Frequency Trading Firms use?
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Re: Ask HN: What programming languauges does the High Frequency Trading Firms use?
#12my previous comment "mostly C++" got down voted. I happen to work at a firm in this industry. C++ is the language used most in HFT. Aside from this, you can verify this by just looking at the job postings.
Not sure why you were downvoted, but your answer had more than a few issues.
1) It was added well after I had already added an answer that included C++
2) it was only 2 words with additioanl information meaning that it didn't really add any value to the question.
I have no doubt you probably know the HFT scene and could probably add some color to people outside of it, but your first answer didn't really help in any appreciable way and this was probably why it was down-voted.
Re: Ask HN: What programming languauges does the High Frequency Trading Firms use?
#13I know that Jane Street is a London based firm that works completely on OCaml ... not sure if there are any firms that use Haskell though
Haskell has many great attributes but predictable performance isn't amongst them (laziness makes it difficult to reason about) so I doubt it is used for HFT.
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