Learn
Learn the method, then practice it
Short guides to every type of question you'll face: the method, worked examples with every number checked by code, and the mistakes that cost candidates offers.
14 guides · 43 worked examples, every number checked by code
Banking and private equity
Accounting walk-throughs: the three statements
How to answer "walk me through" questions without losing your place: income statement first, then cash flow, then the balance sheet, and always check that it balances.
3 min read · 3 worked examples
Valuation and DCF: the numbers you'll do on the spot
Enterprise value and equity value, free cash flow, terminal value, discounting and WACC, each with a worked example you can repeat in an interview.
3 min read · 5 worked examples
Accretion and dilution in two minutes
The quick test interviewers expect, then the full earnings-per-share calculation for stock, cash and debt deals, with the break-even price.
3 min read · 3 worked examples
The paper LBO: a ten-minute method
A buyout case with pen and paper: entry, financing, exit, money multiple and IRR, plus the value bridge that explains where the return came from.
3 min read · 2 worked examples
Market sizing: estimate anything in five steps
How to answer "how many…" and "how big is the market for…" with a clear structure, round numbers and a sanity check from a second method.
3 min read · 2 worked examples
Trading and quant
Probability questions: six tools that solve most of them
Counting, complements, Bayes, linearity of expectation, states and working backwards: the tools behind almost every trading-firm probability question, with exact answers.
3 min read · 7 worked examples
Market-making games: quote, update, stay consistent
The vocabulary, the five-step method and worked dice and coin markets, plus what interviewers mark you on when they trade against you.
3 min read · 3 worked examples
Brain teasers: a method, not luck
A six-step approach for puzzles under pressure, with worked classics: clock angles, handshakes, lockers, two eggs and burning ropes.
3 min read · 5 worked examples
Online tests
Mental math for trading tests: the core tricks
Break-and-rebuild, round-number tricks, fractions to know cold and decimal placement: the methods that make timed arithmetic tests fast and accurate.
3 min read · 2 worked examples
Number sequences: find the rule fast
A checking order that cracks most sequence questions in under a minute: differences, ratios, mixed operations, interleaving and the families worth knowing.
3 min read · 4 worked examples
Numerical reasoning tests: speed with accuracy
How to read the tables, avoid the classic traps (units, percentage points, currency direction) and use the answer options to save time.
3 min read · 3 worked examples
Excel modeling tests: conventions and build order
The formatting conventions graders expect, the order to build an LBO or three-statement test in, the formulas that come up every time, and the shortcuts worth learning.
3 min read · 2 worked examples
Interview craft
Fit and behavioral questions: answers with structure
"Tell me about yourself", "why this firm" and "tell me about a time…": a structure for each, what strong answers have in common, and the mistakes that cost offers.
3 min read
Market questions: pitching a stock and discussing the news
A structure for "pitch me a stock", "what's happening in markets?" and quick bond-math questions. Interview practice only, never investment advice.
3 min read · 2 worked examples
Ready to practice?
Create a free account and drill these questions with instant marking.
Start free