Jane Street is one of the slower market making firms and generates a significant share of revenue from being everywhere on everything (MUCH easier said than done). You want to trade some Canadian lumber ETF? Jane Street will be there. Some bond product with constituents that trade across 3 different trading sessions? Jane Street's active in that market. None of that is to say they don't have any presence in major products or don't have real short term alphas/edges of course.
They've never been at the forefront of latency games, like Jane Street isn't the firm sweeping equity markets since they have the fastest radio network out of CME (dubious value) or getting their quotes first-in-line every time.
> I don't think C++ programmers in general are worth chasing. If they stuck with C++ for such a long time, it means they are used to it and accept C++ with all its flaws
People don’t use C++ because it’s convenient and easy, they use it because it’s one of the best widely used options/ecosystems if performance really matters.
Any other language targeting this space has to chase C++ users because C++ is so prevalent. It would be like coming up with a new general purpose dynamic language and not appealing to Python users, or a new stats modeling language and not appealing to R users.
Yes, I agree - I didn't mean that the "C++ is a contender" use cases are few, in fact the opposite. Just that I don't see a ton of of professional "We wrote our Postgres CRUD app in Rust for reasons". I'm sure a few have, but that's a harder choice to defend that using Rust instead of C++.
I think there's a distinction between people making side projects/posting online and professional usage of rust.
There's a lot more Python/JS/etc developers than C++ developers, and Rust meaningfully offers something those languages don't, so I suspect you see a rush of folks from that world going to learn Rust and posting about it online.
However, I generally don't see or hear about Rust being used professionally except in a context where C or C++ would have been seriously considered as well.
They've never been at the forefront of latency games, like Jane Street isn't the firm sweeping equity markets since they have the fastest radio network out of CME (dubious value) or getting their quotes first-in-line every time.