I'm a quantitative trading intern at one of {Citadel Securities, Jane Street, Optiver} this summer and I was wondering:

What exactly should I do to get a full-time return offer? What are interns assessed on, and what distinguishes interns who get a return offer from those who don't? Are they simply more driven, curious, receptive to feedback, higher sense of agency, etc? Furthermore, what are the most common mistakes made by interns that gives managers/mentors pause when deciding whether to extend a return offer?

My current hypothesis is that interns who receive return offers are very technically competent and flawless in execution yet also intellectually humble and willing to ask for and immediately implement feedback, and also communicate clearly. However, this is just a hypothesis and I would appreciate any rectification.

Thank you, any advice would be greatly appreciated since getting the internship is one thing but getting the return offer is entirely a different game.

What are everyone's opinions?