Investment Banking Interview Preparation: A Practical Study Plan

8 min readMaya Chen

Study

Investment banking interviews do not all test the same thing. Build the foundations once, then shift your practice towards the next real stage on each application.

Most applicants do not lack resources. They lack a sensible order. A question bank, modelling course, and stack of firm notes can still leave you unsure what to study tonight.

The solution is not another hundred questions. Build a foundation, identify the next stage for each bank, and spend the largest share of your time on the closest demanding round.

Start with the interview you actually have

Investment banking recruiting can place five applications at five different stages. One bank may have sent a HireVue, another may be scheduling a technical interview, and a third may still be reviewing your application.

Treating all three as equal wastes time. Use a simple priority order:

  1. Interview or assessment due within 72 hours
  2. Confirmed later-stage interview within two weeks
  3. Likely next round for a high-priority application
  4. General foundation work

Urgency does not mean ignoring fundamentals. It means choosing the version of the fundamentals that the next interviewer can test.

For example, accounting knowledge helps in every technical process. Before a first round, focus on clean explanations. Before a superday, practise what happens when assumptions change and why a banker would care.

The investment banking application tracker guide explains how to keep these stages visible. The important habit is updating a stage as soon as an invitation arrives.

Build the technical foundation in the right order

Candidates often begin with DCF or paper LBO questions because those topics look advanced. That creates brittle knowledge when the interviewer asks a basic accounting follow-up.

Use this order:

  1. Financial statements and their links
  2. Enterprise value and equity value
  3. Valuation methods and trading multiples
  4. DCF assumptions and sensitivities
  5. M&A process and accretion or dilution
  6. Debt, leverage, and simple LBO returns

Each topic should answer three questions:

  • What is the concept?
  • How does it connect to the statements or valuation?
  • What changes when one assumption moves?

Take depreciation. A memorised answer traces a $10 increase through the statements. A stronger answer also explains why cash flow rises by the tax shield, why book assets fall, and why the effect depends on a valid tax assumption.

Our investment banking technical questions guide covers the full technical set. Use it to understand the links, then test yourself without notes.

Prepare behavioural answers without writing scripts

Behavioural questions are not a soft break from the technical interview. Banks use them to assess motivation, judgement, self-awareness, and whether colleagues can trust you under pressure.

Prepare evidence for:

  • Why investment banking
  • Why this firm and division
  • A difficult team situation
  • A time you took ownership
  • A mistake and what changed afterwards
  • A period of competing deadlines
  • A commercial or transaction interest

STAR can help you organise examples, but it should not sound like a speech. Keep the situation short, spend more time on your action, and finish with a result or lesson that is specific.

The interviewer may interrupt or ask for another example. That is normal. Know the facts of each story well enough to change the length without losing the point.

Use the investment banking behavioural questions guide to build a small bank of flexible examples. Four strong stories are more useful than twelve vague ones.

Match preparation to the interview format

The same answer should change with the format.

HireVue
Format
Main preparation goal
Concise structure, natural delivery, and firm-specific motivation
Telephone screen
Format
Main preparation goal
Clear thinking without visual cues or long pauses
First-round interview
Format
Main preparation goal
Balanced behavioural and technical confidence
Assessment centre
Format
Main preparation goal
Judgement, collaboration, and concise presentation
Superday
Format
Main preparation goal
Consistency, deeper follow-ups, and stamina
FormatMain preparation goal
HireVueConcise structure, natural delivery, and firm-specific motivation
Telephone screenClear thinking without visual cues or long pauses
First-round interviewBalanced behavioural and technical confidence
Assessment centreJudgement, collaboration, and concise presentation
SuperdayConsistency, deeper follow-ups, and stamina

HireVue

Most recorded interviews give limited preparation and answer time. Practise speaking in a clear first sentence, supporting it with one example, and finishing without circling back.

Finbound's Video Interview Prep lets you record a 60-second HireVue-style answer and receive Fintelligence feedback. The recording, transcript, and feedback stay saved against the bank you selected, so you can reopen weak answers later.

For the wider question mix, read the HireVue finance interview tips guide.

Telephone interview

Without visual feedback, pace and signposting matter more. State your conclusion first, pause between points, and avoid long lists.

Finbound's Telephone Interview Prep gives you three spoken questions with 60 seconds for each answer. Use it to hear where your structure becomes difficult to follow.

Superday

A superday may repeat "why banking?" several times. That is not wasted time. Interviewers compare consistency, then push different details.

Prepare one coherent motivation answer, but do not repeat it word for word. You should also expect deeper technical questions, CV detail, and a commercial discussion. The superday preparation guide covers the full day.

Use a six-week investment banking prep plan

This schedule assumes you have several weeks before live interviews. Compress it if necessary, but keep the sequence.

Weeks 1 and 2: accounting and valuation

Learn the statement links, enterprise and equity value, trading comparables, precedent transactions, and DCF structure. Explain each topic aloud. If you cannot explain it simply, return to the concept before adding more questions.

Week 3: transactions and leverage

Study M&A process, accretion and dilution, purchase accounting at a high level, debt capacity, and simple LBO returns. Connect every answer to the advisory work a junior banker performs.

Week 4: behavioural and commercial preparation

Build four flexible examples, one clear motivation answer, and one ninety-second discussion of a deal or market event. For commercial preparation, explain what happened, why it matters to clients, and what could change your view.

Week 5: format practice

Record HireVue answers, run telephone questions, and conduct a live mock interview. Review the result rather than counting attempts. Rewrite unclear opening sentences and repeat weak technical explanations.

Week 6: firm and division detail

Research recent transactions, business mix, office or team focus, and the exact role. Adjust your examples and technical emphasis. M&A, ECM, DCM, and markets do not require identical preparation.

What to do when the interview is in 72 hours

You cannot master a full technical curriculum in three days. Triage honestly.

Day one: Audit your baseline. Test accounting, valuation, and motivation without notes. List the gaps that would cause an interview failure.

Day two: Fix the largest gaps and prepare firm detail. Practise one behavioural answer, one technical sequence, and one commercial discussion aloud.

Day three: Run a realistic mock, review errors, and stop heavy study early enough to sleep. A tired candidate who read ten more pages often performs worse than a rested candidate who can explain the core material.

Do not spend the final evening searching forums for every question the bank has ever asked. The wording changes. Connected understanding travels better.

Turn mistakes into the next study task

After every practice session, record the specific failure.

"Technical was weak" is too broad. Better notes are:

  • Confused enterprise value with purchase price
  • Could not explain why cash is subtracted
  • Forgot the working-capital effect in free cash flow
  • Gave a generic reason for choosing the division
  • Took forty seconds to reach the point in a HireVue answer

The fix should match the failure. Review the concept, explain it once without notes, and answer a changed version. For delivery problems, record another take with a shorter opening.

Fintelligence analyses study and test performance for patterns, strengths, gaps, and an action plan. The advanced study algorithm, not Fintelligence, decides which tasks rank highest from your tracked applications.

Common preparation mistakes

The most common mistake is confusing exposure with mastery. Reading an answer feels familiar, but the interview requires you to produce and defend it.

Other mistakes include:

  • Studying advanced topics before statement links are secure
  • Writing behavioural scripts that collapse after an interruption
  • Using one motivation answer for every bank and division
  • Ignoring commercial awareness until the final night
  • Practising silently instead of speaking
  • Leaving firm research until after the invitation
  • Keeping application stages in your inbox instead of one tracker

Finbound connects the last point to the rest of your preparation. Track the firms and stages, and an advanced priority algorithm ranks the highest-impact study tasks using those applications, deadlines, and your progress. Start for free when you want the plan to update with the process.

What to do after reading this

Preparing for several banks at once? Write down the next stage and deadline for each application, then choose the one technical topic and one spoken answer that matter most tonight.

Use the investment banking interview questions guide for question coverage and the application tracker guide to keep the order clear.

Frequently Asked Questions