[hackrmn]

I've not heard of Jane Street, but looking at the site, it seems they're quite the tech-savvy group for an _asset trading_ company. And reading the article, they apparently "trade" (pun intended) in quite a few different things from CSS to OCaml, which is really nice to see for a place that doesn't directly deal with software as their [business] product (or did I misunderstand their market?).

[pjmlp]

They are basically the main company driving OCaml development outside INRIA, and the main authors behind Real World Ocaml book (https://dev.realworldocaml.org), which followed up a similar one for Haskell.

[JdeBP]

If you want to learn about Jane Street:

1. Watch Stand-Up Maths and Numberphile videos on YouTube and do not skip the sponsor advertisement readings, e.g. https://youtube.com/watch?v=eqyuQZHfNPQ .

1. Read https://news.ycombinator.com/item?id=44480916 .

[tfsh]

Jane Street is a technology company first and foremost whose main product is high frequency training, which is similar to mang of these neo-hedge funds (e.g. HRT, Citadel). Which is contrasted to the more established asset managers (e.g. BlackRock, Vanguard, BRK, etc) which I can say from experience are corps tied down in bureaucracy.

[redwood]

The Economist's take https://www.economist.com/finance-and-economics/2025/06/26/j...

[stuartjohnson12]

https://archive.ph/6Pn0K

[logicchains]

> which is really nice to see for a place that doesn't directly deal with software as their [business] product

Part of Jane Street's business is HFT, and software is the "product" of HFT firms, because without extremely low-latency software (and hardware) they cannot make money.

[maxatoms]

They are also a sponsor of ZuriHac (https://youtu.be/Jzh3e-I4j-w?feature=shared&t=817)