Susquehanna International Group (SIG) interview prep
SIG interviews lean heavily on mental arithmetic, probability, and game-theoretic reasoning. QuantPrep drills every one of these.
WHAT SIG FOCUSES ON
- ·Mental arithmetic under time pressure
- ·Probability and expected value problems
- ·Game theory and strategic reasoning
- ·Market-making estimation fermi questions
- ·Multi-round interviews with progressively harder problems
INTERVIEW OVERVIEW
SIG's online assessment and interview loops are widely known for mental-math sections, probability brainteasers, and game-theory style questions about trading and betting. Candidates who pass typically practice arithmetic speed alongside the underlying probability. QuantPrep's corpus covers every technique SIG screens for — expected value, conditional probability, Markov chains, optimal stopping, and more — with AI explanations when a canonical solution doesn't click.
FAQ
SIG runs multiple rounds including an online assessment heavy on mental arithmetic, followed by interviews with probability puzzles, brainteasers, and game-theory questions. The bar is speed and accuracy under pressure, not just correctness.
SIG's arithmetic component is heavier than most peers. Jane Street leans into open-ended probability discussions; Optiver heavily emphasises speed tests. SIG sits between the two — serious mental math plus serious probability.
Expected value (both discrete and continuous), conditional probability / Bayes, Markov chains, combinatorial counting, and basic stochastic reasoning. QuantPrep's adaptive selector surfaces whichever of these you're weakest on.
Drill SIG problems now
400+ problems, adaptive selection, AI-generated alternative explanations. Free tier covers 20 attempts.
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