Blog
Guides, insights, and deep dives into quant interview topics.
Trader vs Researcher Is the Wrong Question: The Five Axes That Decide Your Quant Career
Titles barely describe the job. Every quant seat is a point in five dimensions; sort by where the alpha comes from and the field collapses into six families. How to pick the one that fits you.
Guest PostWhat I Went Through in the Jane Street Quant Trader Interview
A personal, first-person account — two technical rounds and a Super Day of market-making games — from someone who got the internship offer. What he actually noticed, shared as-is.
NewsletterProblem of the Day: Keep or Play: Optimal Replay in a Coin-Flipping Game
Today's problem: Keep or Play: Optimal Replay in a Coin-Flipping Game
NewsletterLithium Fell Because the Market Believed Its Own Shortage
If you are interviewing for a commodities or buy side seat, lithium is the case they reach for to see whether you think in supply chains or in TAM slides.
NewsletterProblem of the Day: Pirate Hat Puzzle: Cooperative Parity Strategy
Today's problem: Pirate Hat Puzzle: Cooperative Parity Strategy
NewsletterProblem of the Day: Glosten-Milgrom Zero-Profit Bid-Ask Quotes
Today's problem: Glosten-Milgrom Zero-Profit Bid-Ask Quotes
NewsletterThe 99%-Accurate Test That's Wrong 91% of the Time
Interviewer: “A test for a rare condition is 99% accurate.
NewsletterProblem of the Day: Expected Sum of Rolls in the Coupon Collector Problem
Today's problem: Expected Sum of Rolls in the Coupon Collector Problem
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