The Library
Quant Interview Guides
The formats, the screens, and the skills, written the way a desk mentor would explain them. Every guide ends where the practice starts.
Optiver Insight Days and Early Careers: What to Expect
What insight days and early-career events at trading firms like Optiver involve, who they are for, how selection works, and how to prepare for what follows.
7 min read
Pit: the Card Game That Teaches Open Outcry Trading
The Pit card game recreates a commodity trading floor with blind swaps and shouted quantities. What it actually teaches about market making, information, and speed.
8 min read
The Citadel Securities Interview: Math Depth and Market Fluency
What candidates report about Citadel Securities interviews: the quantitative bar, random walks and martingale arguments, statistics, and how to prepare for each round.
9 min read
The SIG Interview Process: Poker, Decisions, and Expected Value
How Susquehanna interviews trading candidates: the decision-science framing, poker questions, expected value under uncertainty, and how to prepare for each round.
9 min read
Trading Firm Online Assessments in 2026-27: Every Major Format
The online assessment formats quant trading firms use in the 2026-27 cycle: speed arithmetic, sequences, probability quizzes, game-based tests, and coding screens.
10 min read
The Optiver Online Assessment in 2026-27: Stages, Format, and Prep
What the Optiver assessment process looks like in the 2026-27 cycle as candidates report it: the 80 in 8 arithmetic screen, later stages, and a training plan.
8 min read
Quant Internship and New Grad Timeline for the 2026-27 Cycle
When quant trading applications open and close for 2027 internships and grad roles, month by month, with a prep plan matched to each phase of the cycle.
9 min read
The Kelly Criterion in Quant Interviews
How the Kelly criterion shows up in quant interviews: the log-growth derivation, a worked 60/40 example, fractional Kelly, and the traps that sink candidates.
9 min read
Mental Math for Trading Interviews
The ten mental math techniques trading screens actually test, each with a worked example, plus negative-marking strategy and a 15-minute daily drill plan.
10 min read
The 4-Week Quant Interview Prep Roadmap
A four-week quant interview prep plan: daily probability and mental math drills, timed screens, firm-specific focus, mock loops, and checkpoints that matter.
10 min read
The IMC Sequences Test: Patterns and Practice
Every pattern family on the IMC sequences test with worked examples, a 10-second decision tree, trap sequences, and a regenerating practice simulator.
9 min read
The Jane Street Interview Process, Stage by Stage
What candidates report about Jane Street interviews: phone screens, market-making games, two worked probability examples, and how to prepare for each stage.
10 min read
The Optiver 80 in 8 Test, Explained
Optiver's 80 in 8 math test, explained: scoring with negative marking, the 2/3 confidence rule, pacing math, worked speed techniques, and a 3-week plan.
10 min read