I Need to Cram for My Investment Banking Interview

You can get meaningfully better at an investment banking interview in 48 hours. Not fully prepared, but better in the ways that decide first rounds. The reason is that first rounds are predictable: a resume walkthrough, why banking, why this firm, two to four technicals pulled from a short standard list, and maybe one market question. Last-minute prep works when you spend every remaining hour on exactly that list, out loud, and ignore everything else. Here are the plans for one night, three days, and one week.

One rule sits under all three: an hour of saying answers out loud beats three hours of rereading a guide. Interviews test delivery under pressure, not recognition on the page. Every plan below is built around that trade, and it is why we built Superday AI the way we did: 5,000+ drill questions graded the way an interviewer would grade them, not another PDF to highlight.

What a First Round Actually Tests

Cramming is viable because interviewers are predictable. A 30-minute first round, whether on campus, over the phone, or on video, almost always contains:

• A resume walkthrough or tell me about yourself. Some version of this opens nearly every interview.
• Fit questions you can see coming. Why investment banking, why this firm, a strength and a weakness, one "tell me about a time" story.
• Two to four technicals from a standard pool. The three financial statements and how they link, $10 of depreciation, enterprise value versus equity value, the main valuation methods, and walk me through a DCF.
• Sometimes one market question. Where markets have been moving, a deal you have followed, a stock you like.
• Your questions for them. The last two minutes, which tired candidates throw away.

Your interviewer is usually an analyst or associate fitting you in between deliverables. They are not inventing exotic questions; they are pulling from the same pool every interviewer pulls from. That pool is the entire basis of an effective cram.

The Cram Priority List

Work in this order, and do not move down a level until the one above is solid. The top of the list is near-guaranteed to come up. The bottom might not.

1. Your story. A 90-second resume walkthrough: where you started, what you chose and why, and why this seat is the logical next step. It is the first impression and the one answer you cannot wing.
2. Why banking, and why this firm. One honest reason backed by something you have actually done, not a speech about fast-paced environments. Then one specific fact per firm: the group you applied to, a recent deal, a person you spoke with. Our breakdown of how to answer why investment banking covers the framework.
3. The accounting chain. The three statements, how they connect, and the depreciation walk. This is the single most common technical screen, and every harder question is built on top of it.
4. Valuation essentials. Enterprise value versus equity value, the three main methodologies, and a two-minute DCF walkthrough. If you only have time to master one long technical, make it the DCF.
5. One layer deeper, only if everything above holds. WACC intuition, the accretion and dilution rule of thumb, and what makes a good LBO candidate.
6. One market talking point. A deal or sector story from the past month you can discuss for 60 seconds: what happened, why it made strategic sense, one number you remember.

If You Have One Night

Five focused hours, then sleep. In order:

• Hour 1: story and fit. Bullet out your resume walkthrough, why banking, and why this firm. Then say each one out loud three times. Out loud is not optional; the first time you hear yourself give the answer should not be in the interview.
• Hours 2 and 3: the accounting chain and valuation core. Statements and linkages, the depreciation question, enterprise versus equity value, the DCF walkthrough. Learn each framework, then close the notes and deliver the answer in under two minutes.
• Hour 4: pressure-test. Answers only count once something pushes back on them. Superday AI grades each answer the way an interviewer would and asks the follow-up your version invites, which is the fastest way to find soft spots on a one-night runway. Working offline? Have a roommate read questions from the free technical bank and interrupt with "why?" twice per answer.
• Hour 5: the firm and the logistics. Fifteen minutes on the firm's site, recent deal announcements, and our bank-by-bank interview guides, which cover the process, culture, and common questions for 45 firms. Write your two questions for the interviewer. Confirm the link, the time zone, and the outfit.
• Then stop. Sleep beats a sixth hour of review. Recall under pressure is the first thing sleep loss takes, and you need recall more than you need marginal coverage.

If You Have Two or Three Days

The one-night plan, decompressed and with real reps added:

• Day 1: behaviorals and accounting. Write and rehearse the story and fit answers in the morning. Spend the afternoon on the three statements, linkages, and depreciation until the answers bore you. End the day by delivering everything out loud, no notes.
• Day 2: valuation, then a full mock. Enterprise versus equity value, valuation methods, the DCF walkthrough, then WACC if it is sticking. In the evening, sit a full Superday AI mock interview and read the feedback like a scouting report. The gaps it finds are tomorrow's syllabus.
• Day 3: patch, polish, taper. Rework the two or three answers that cracked yesterday and re-run them until they hold. Do the firm research, prep your questions for the interviewer, and stop by early evening. The last night is for sleep, not new material.

If You Have a Week

A full week before the interview is enough to walk in genuinely confident rather than survivably prepared:

• Days 1 and 2: foundations. Story, fit answers, and the full accounting chain, with 20 to 30 minutes of spoken drills at the end of each day.
• Days 3 and 4: valuation and one layer deeper. The DCF until it is smooth, the enterprise-to-equity bridge, comps and precedents, then accretion and dilution and basic LBO intuition. Keep the daily drills running; spaced reps are what move an answer from "I know this" to "I can say this."
• Day 5: firm research and market prep. Recent deals, the group's focus, your one market talking point, your questions for them.
• Day 6: dress rehearsal. One complete mock interview under time pressure, then patch whatever broke.
• Day 7: light review and taper. One pass over your story, why this firm, and the DCF. Nothing new. Sleep.

What to Skip When You Are Cramming

Half of cramming well is refusing to do things that merely feel productive:

• The 400-page guide, cover to cover. It is a reference, not a syllabus. Read the sections on the priority list and leave the rest.
• Excel practice. Campus first rounds test spoken technicals, not live modeling. If a modeling test is part of your process, it will be scheduled and named; do not invent one to prepare for. Modeling matters on the job, not in a first round; once this interview is behind you, our free financial modeling lesson is the place to start.
• Memorizing hundreds of questions verbatim. Scripted answers crack at the first follow-up. Learn the 15 or so core frameworks and practice flexing them. Our list of the top 10 technical mistakes is largely a list of memorizers getting caught.
• Obscure brain teasers. Low odds of appearing, low weight if they do, and graded on approach rather than the answer anyway.
• Resume surgery. They invited the resume you submitted. Editing it the night before creates versions you have to keep straight; know the submitted one cold instead. Once this round is done, run it through the free resume analyzer before you send it anywhere else.

Cram Out Loud or It Does Not Count

The classic cramming failure is silent review: rereading, highlighting, nodding along. That builds recognition, and interviews do not test recognition. They test whether you can produce a structured answer while someone watches you and pushes back.

This is the exact gap Superday AI closes, and it matters most when time is short. Nothing else drills IB technicals at the same depth: each of the 5,000+ drill questions is graded against the rubric a real interviewer would use, with follow-ups aimed at the precise spot your answer went soft, so one evening of drilling tells you exactly what to patch instead of leaving you to guess. Mock interviews simulate the round you are actually facing, from a first round to a full superday, and end with a report you can turn into the next day's plan. And the AI coach reads your resume, school, and target firms, so a question like "is my why-this-firm answer specific enough?" gets an answer about your candidacy, not a generic tip. The free trial runs five days, which happens to cover a full cram window end to end.

Weighing prep options with hours to spare? Our honest AskStanley review and IB Vine comparison show how the platforms stack up.

However you get them, the reps that count share four properties: no notes, out loud, under two minutes per answer, with follow-ups.

The Night Before and the Morning Of

• Stop learning by mid-evening. New material within 12 hours of the interview mostly buys anxiety.
• Sleep seven to eight hours. This is a real edge, not wellness advice. Composure and recall degrade faster from sleep loss than from one missing review pass.
• Do one light pass in the morning. Your story, why this firm, and the DCF walkthrough. Ten minutes, out loud.
• Never bluff. When a question lands outside your prep, say "I have not worked through that one, but here is how I would think about it," and reason from fundamentals. Interviewers grade the thinking, and bluffing fails the honesty test and the technical test at once.
• Lead with the headline. Give the answer in the first sentence, add two or three supporting points, then stop. Rambling is the classic crammer's tell.
• Have your two questions ready. Specific questions for the interviewer about the group and the work, not culture questions the website already answers.

If the interview you are cramming for is a final round, read our superday preparation checklist alongside this. The format changes more than the content does.