Guide

Investment banking interview tips

Updated November 1, 2026

Lead with the answer, keep most answers between 45 seconds and 2 minutes, know the core accounting and valuation questions cold, and have three or four true stories ready for the behavioral questions. Practice out loud rather than in your head. When you don't know something, reason through it step by step instead of guessing, and give specific reasons for each bank.

How should you structure an interview answer?

Say the answer in the first sentence, give two or three points that support it, then stop. Interviewers hear dozens of answers a day; the ones that open with the conclusion are the easiest to follow and to score.

1. Answer first. “Net income falls by $6” or “I want to do banking for two reasons”, before any setup.
2. Two or three supporting points. The steps of a walk-through, or the reasons behind your answer, in order.
3. A clean stop. Don't summarize what you just said, and don't add “if that makes sense”. Let the interviewer ask the follow-up.

Superday Room's grader checks the same things when it scores a spoken answer: whether you led with the answer, and whether the answer rambles or hedges.

How long should your answers be?

Usually 45 seconds to 2 minutes. Definitions take 45 to 60 seconds, walk-throughs and “Why investment banking?” about 75 to 90 seconds, and “Walk me through a DCF” or your resume up to about 2 minutes. Superday Room's grader looks for a pace of about 130 to 165 words a minute. Target times for 53 common questions →

Which technical questions should you know cold?

Accounting, valuation, enterprise value, DCFs, merger models and LBOs. Among the 409 questions candidates reported from superdays in Superday Room's bank, the technical topics included accounting (49), valuation (45), merger models (48), enterprise and equity value (33), DCFs (29) and LBOs (30). These are candidates' reports, not an official breakdown. Start with the free questions in each topic:

• Accounting questions and the three-statement walk-through
• Enterprise and equity value and valuation
• DCF questions and “Walk me through a DCF”
• Merger models, LBOs and the paper LBO

What should you do when you don't know the answer?

Say what you do know, state your assumption, and reason through it out loud. A clear line of reasoning that lands close is worth more than a confident guess, and interviewers often follow up to see how you think rather than whether you memorized the line.

• Ask a clarifying question if the question is ambiguous: “Is that cash or stock consideration?”
• State the assumption once: “Assuming a 25% tax rate…”, then commit to it.
• Don't bluff. If you've never seen the concept, say so briefly and explain how you'd work it out.
• Correct yourself out loud if you spot a mistake. Recovering cleanly is part of the answer.

How do you prepare for the behavioral questions?

Write three or four true stories, each told in about 90 seconds, that you can bend to most prompts: a time you led, a conflict, a failure, and something you built or improved. Behavioral questions were 15% of the questions candidates reported from superdays in Superday Room's bank, and almost every interview opens with your resume and “Why investment banking?”.

• Walk me through your resume: a 90-second structure.
• Why investment banking?: two or three reasons tied to what you've done.
• Behavioral questions with short answers, including the STAR method for stories.
• For “Why our bank?”, see what candidates reported at each firm on the firm pages.

What should you do before each round?

Match your preparation to the format: a recorded video round, live first-round calls, then the superday.

1. Recorded video interview (HireVue). Each question appears on screen and you record a timed answer. HireVue says most on-demand interviews ask for answers of “just a few minutes” (HireVue). Test your camera and light, and practice with a timer. How the HireVue works →
2. First round. Often short live calls with analysts or associates, mixing your story, “Why banking?” and basic technicals. Prepare a short “Why this bank?” for each firm.
3. Superday. Several interviews back to back, often on one day. Goldman Sachs, for example, says it typically holds between two and five interviews for campus hires, depending on the division (Goldman Sachs). What happens at a superday, and a plan for the week before →

How should you practice so it sticks?

Out loud, timed and repeated. Reading an answer in your head feels like knowing it; saying it is what shows the gaps. Record yourself, listen back, and answer the same question three or four times in a row.

• Count your fillers. Superday Room's grader flags an answer at two filler words, and more than about four per 100 words as heavy. Paste a transcript into the filler word counter →
• Time each answer against the targets above, and cut the setup before you cut the substance.
• Practice under mild pressure: a timer, a friend asking, or a mock interview.
• Check where you stand with the readiness self-check, a score out of 100 with next steps. It's a self-check, not a prediction.

Which mistakes cost candidates the most?

Running long, opening with background instead of the answer, and hedging. The common ones:

• A three-minute resume walk-through. Keep it to about 90 seconds.
• Money or exit opportunities as the main reason for banking.
• Hedges such as “I think” and “probably” on a technical answer you actually know.
• A generic “Why our bank?” that would fit any firm.
• Not knowing your own resume: every line on it is fair game for a follow-up.

Frequently asked questions

How do I prepare for an investment banking interview?

Learn the core technicals (accounting, valuation, enterprise value, DCFs, merger models and LBOs), prepare your resume walk-through, “Why investment banking?” and three or four stories, and practice every answer out loud with a timer.

How long should an investment banking interview answer be?

Usually 45 seconds to 2 minutes: about 45 to 60 seconds for a definition, 75 to 90 for a walk-through or “Why investment banking?”, and up to 2 minutes for your resume or “Walk me through a DCF”.

What if I don't know the answer to a technical question?

Say what you know, state your assumption, and reason through it out loud. Don't bluff; a clear line of reasoning is worth more than a confident guess.

Sources

• Goldman Sachs, “Prepare (Students)”, checked October 29, 2026.
• HireVue, “Interview Tips”, checked October 29, 2026.