Quant Finance Blog

Black-Scholes formula explained clearly — what each variable means, the delta-hedging intuition, key assumptions, and the exact interview questions quant firms ask about it.

Master dice probability problems for quant interviews. Expected values, geometric distributions, and combinatorics with step-by-step solutions tested at Jane Street, Citadel, and Optiver.

Play the market making game and learn bid-ask spread strategy tested at Optiver, Jane Street, and IMC. Includes interview tips and P&L optimization strategies.

Master the Optiver 80-in-8 mental math test with our complete guide. Learn scoring system, question types, training strategies, and interview tips for quantitative trading roles.

Complete guide to SIG's quantitative evaluation. Learn probability, expected value, combinatorics questions with explanations and interview strategies.

Master zetamac-style mental math for quant interviews. Training techniques, speed strategies, benchmarks, and 30-day practice schedule for arithmetic speed tests.

Complete beginner's guide to algorithmic trading in 2025. Learn strategies, tools, and how to build your first trading bot without a finance degree.

Learn how Monte Carlo simulation revolutionizes financial modeling. Includes real examples used by quant firms for risk management and option pricing.

Master the mathematical models that power options trading. From Black-Scholes fundamentals to advanced Monte Carlo techniques used by quant traders.

Everyone in quant prep talks about the Green Book. But is reading a PDF enough to ace a live Jane Street interview? Here's what the data says.

Complete breakdown of Jane Street compensation based on verified offer letters and insider reports from 2024-2025.

A complete breakdown of the Jane Street interview process based on actual candidate experiences from 2024-2025.

A clear explanation of market making - the strategy that powers Jane Street, Optiver, and Citadel Securities.

What high-frequency trading actually is, how HFT firms make money, and what this means for quant finance interviews in 2025.

Standard Brownian motion explained from first principles — 4 key properties, Itô's lemma, Black-Scholes derivation sketch, and the exact questions quant interviewers ask.

The honest truth about GPA requirements at Jane Street, Citadel, and other top quant firms, based on actual hiring data.

When quant firms actually open applications and send offers, based on patterns from the last three recruiting cycles.

Comprehensive breakdown of quant trader salaries in 2025. From $300K entry-level to $10M+ senior roles at Jane Street, Citadel, Hudson River Trading, and top firms. Real data, progression paths, and negotiation strategies.