Which quant prep program fits your interview in 2026
8 min read A sourced comparison of CQF, EPAT, WorldQuant, quant question banks and the free programs trading firms run, with who each one fits, as of October 2026. Read article
Tools & Reviews
Tools & Reviews
Is the CQF Worth It for Quant Interviews?
7 min read A sourced, date-stamped look at what the CQF teaches versus what quant interviews actually test, and whether the fee is worth paying yourself. Read article
Quant Finance
Why a backtest Sharpe of 4 becomes 0.5 live
7 min read A backtest Sharpe of 4 usually lands near 0.5 live, and quant research interviews are built to test whether you know which biases ate the difference. Read article
Quant Finance
The statistics questions quant and data science interviews ask
7 min read The inference mistakes that sink quant and data science candidates are almost never arithmetic; they turn on what a p-value or a confidence interval really claims. Read article
Quant Finance
The G-Research interview and the 90-minute quiz that gates it
7 min read A breakdown of how G-Research screens quantitative researchers and developers, from the timed online quiz through the final onsite. Read article
System Design
Designing a matching engine that keeps price-time priority
7 min read How exchanges match buy and sell orders, why the hot path runs on a single thread, and how the book rebuilds itself after a crash. Read article
Quant Finance
How trading desks test your options intuition
7 min read The options questions trading firms ask, from put-call parity to gamma scalping, and how to reason through them out loud. Read article
Quant Finance
How Akuna Capital and Five Rings screen new grads
5 min read A look at what Akuna Capital and Five Rings actually test new-grad traders and engineers on, from the eight-minute math test to the live trading game. Read article
Quant Finance
How Tower Research Capital Interviews Its Low-Latency Engineers
6 min read A breakdown of Tower Research Capital’s engineering loop, the C++ and systems questions it leans on, and what the multi-desk Super Day means for candidates. Read article
Quant Finance
How XTX Markets screens quant researchers and developers
7 min read A breakdown of XTX Markets’ online assessment, technical call, and London onsite, and what the firm expects from quant researchers and developers. Read article
Quant Finance
How IMC Trading interviews traders and engineers differently
7 min read The IMC Trading interview splits into a trader track built on mental math and market-making games and an engineer track built on low-level C++ and a matching-engine build. Read article
Quant Finance
The probability brainteasers trading desks still ask
6 min read The reroll game, HH versus HT waiting times, the coupon collector, Bayes, and making a market, with the reasoning trading firms actually grade. Read article
Quant Finance
What Jane Street’s software engineer interview really tests
6 min read Jane Street’s software engineer loop is a remote coding screen and a full day of collaborative rounds, with no brainteasers, no separate system-design round, and no OCaml requirement. Read article
Quant Finance
What the D. E. Shaw interview actually tests
6 min read A look at D. E. Shaw’s quant and developer interview loops, the probability and coding questions they ask, and how they grade your reasoning. Read article
