Which quant firm is the right fit?

Jane Street emphasises reasoning depth and conceptual conversations; Optiver emphasises arithmetic speed and rapid-fire probability. Both are elite — the differences are in what they select for.

SIG hires for probabilistic intuition and arithmetic speed; Citadel Securities hires for mathematical depth and specialisation. Different filters, both elite.

Optiver and IMC are the two biggest Dutch-origin quant firms. Both arithmetic-heavy, both probability-focused — but culturally and in intensity they differ.

Jane Street prizes conceptual depth; Citadel Securities prizes mathematical specialisation. Both are the hardest interview processes in quant finance.