Had an OA but I thought I didn't well but I passed. I think I got lucky cuz I didn't cheated. Just don't cheat, there is no point doing that. First and second round the interviewers were all nice and the problems were very interesting and thought-provoking. Had a good experience with the five rings.
I applied online. I interviewed at Five Rings (New York, NY) in Oct 2023
Interview
HR math + 2 rounds of Technical by trader; last round interviewer did not open camera and gave a formulaic wise difficult problem (told me no trick behind & purely testing if you can list out all possibilities carefully)
Interview questions [1]
Question 1
1min per question HR round; no bq at all trader round
Lots of probability and brainteasers. Fairly difficult but very interesting. First round is iffy because can be hit or miss depending on your estimations. Reminaing 5 rounds went well. 1 to 1 interviews with existing traders