You have one week. The superday is on a Tuesday, you got the email Monday afternoon, and the rest of your year — or your whole career trajectory — gets decided in 4-6 hours of back-to-back interviews.
Most superday-prep articles are written for someone with three months. This one is written for the 7-day window, which is the reality for late-cycle invites, second-rounds, off-cycle internships, and fast-moving roles. Seven days is enough to dramatically improve your performance — but only if you spend it right. Here is a day-by-day plan that has been used by candidates who landed offers at bulge brackets and elite boutiques on a 7-day prep window.
It assumes you have basic finance fundamentals: you understand the income statement and have seen a DCF before. If you do not, this is not enough time, and you should be honest with yourself about that. The plan below will not turn a non-finance student into a banking-ready candidate in a week. It will turn a decent-on-paper candidate into one who performs well on the day.
Before you start: the 30-minute diagnostic
Spend 30 minutes Sunday evening doing this. Take a piece of paper, divide it into four columns: technicals you know cold, technicals you sort-of know, technicals you do not know, behaviorals you have a clean answer for.
Test yourself out loud. "Walk me through a DCF" — say it, time it. Should be under 90 seconds. "Why investment banking?" — time that too. "Why this firm?" — and that. If your hesitation is more than three seconds on any of these, the answer is not yet ready.
If your "don't know" column is longer than the other three combined, you have a problem the 7 days cannot fully fix. Be honest with yourself; understand that you will need to play above your weight class on the day, and plan to lean on the strongest columns. If your "know cold" column is robust, the next 7 days are about depth and stress-tolerance, not knowledge accumulation.
This diagnostic is the most-skipped step. Skipping it means you will spend Day 2 prepping things you already know well and skipping things you do not.
Day 1: Triage
Goal: build the prep list. Do not study yet.
Morning, 2 hours. Map the interview structure. Most superdays are 4-6 30-minute interviews, mixed technical + behavioral, often a "fit" round with the MD and a "case" round with a senior associate. Confirm the format if HR will tell you. Pull every Glassdoor and Wall Street Oasis interview entry for this firm and division from the last 24 months. Read all of them. Patterns will emerge — some firms favor brain teasers, others lean accounting, others ask "what is your favorite stock and why" every time. Make a list of the 8-12 specific questions you are confident will come up.
Afternoon, 3 hours. For each of those questions, draft a one-line answer. Do not refine yet. Identify the three "killer" questions — the ones you most fear. These are your daily focus for Days 2-5. Write them on a sticky note and put it on your monitor.
Evening. Read the latest deal news for the firm — last 90 days. This pays off in the "do you know what we have been working on" question and signals genuine interest. Do not study technicals on Day 1. Triage matters more than 8 hours of unstructured studying.
Day 2: Accounting + DCF
Goal: 90% mastery of accounting linkages and the full DCF walk-through.
Morning, 3-4 hours. The three financial statements and how they connect. Practice this question out loud until you can do it in 60 seconds: "if depreciation increases by $10, walk me through the impact on the three statements." Do this for depreciation, accounts receivable, inventory, debt issuance, share buyback. These are the five most-asked. Then working capital — know exactly what it means and which line items move it. Then the basic accounting questions: deferred revenue vs. accounts receivable, capex vs. opex, accrual vs. cash, etc.
Afternoon, 3-4 hours. DCF mastery. Be able to walk through a DCF in 90 seconds, hitting: project FCF, discount at WACC, calculate terminal value (Gordon growth or exit multiple), sum, subtract net debt for equity value. WACC components: cost of equity via CAPM, cost of debt, weights, tax shield. Why is WACC the discount rate? Because it represents the blended return required by all capital providers. Terminal value: when to use Gordon vs. exit multiple. Sensitivity. Why TV is 60-80% of valuation.
Evening, 1 hour. Re-do the depreciation question from memory. Out loud. Record yourself if needed. If you hesitate, redo. The morning was theory; the evening is stress-test.
Day 3: LBO + valuation methods
Goal: LBO walkthrough + comparable companies + precedent transactions.
Morning, 3 hours. LBO mechanics: purchase price, debt + equity contribution, free cash flow generation, debt paydown, exit, IRR and MOIC. Practice walking through it in 90 seconds. "Why does PE use leverage?" — tax shield, juiced equity returns, financial discipline. Have all three on your tongue. "What makes a good LBO target?" — stable FCF, asset base, mature industry, cost cuts available, undermanaged. The interaction effect: if you get hit with a "why are returns sensitive to debt levels" question, be ready for the math.
Afternoon, 3 hours. Comparable company analysis: how to choose comps, multiples (EV/EBITDA, EV/Revenue, P/E), when each is right. Precedent transactions: control premium, why they will typically value higher than trading comps. Football field: what it is and how to use it. Pros and cons of each valuation method — "DCF: most theoretically sound but garbage-in-garbage-out. Comps: market-based but no two companies are truly comparable. Precedents: real transactions but stale and biased upward."
Evening, 1 hour. Practice "why might a higher multiple be justified for company X" using a real recent transaction in the bank's deal flow. This shows that you have read their press releases, which most candidates have not.
Day 4: Behavioral + your story
Goal: a 60-90 second "tell me about yourself" you can deliver without hesitation, and answers for the eight most-common behaviorals.
Morning, 3 hours. Your story. Three-act structure: where you started, the moment you became interested in finance, why you are here today applying to this firm. Specific. Concrete. No filler. Why investment banking — three reasons, ranked. Avoid "I love finance"; give specific reasons (steep learning curve, transactional intensity, exit options into PE). Why this firm — two reasons specific to this firm. "Reputation" is not specific. "I followed your transaction in the Y industry, the cross-sector deal team was interesting because Z" is specific. Why this division if divisional — M&A vs. ECM vs. DCM.
Afternoon, 3 hours. The eight most-common behaviorals. Have a 90-second STAR-format answer for each: tell me about a time you led a team; tell me about a time you failed; tell me about a time you handled conflict; tell me about a time you worked under pressure; tell me about your greatest accomplishment; tell me about a weakness; tell me about a time you persuaded someone; walk me through your CV.
Evening, 1 hour. Record yourself answering all eight. Listen back. Note the verbal tics, the filler words, the moments where you do not know what to say. These are exactly what the interviewer will notice. The recording is uncomfortable. It is also the single highest-leverage hour of the prep week.
Day 5: Brain teasers, market sizing, firm-specific
Goal: stress test under non-technical pressure.
Morning, 2 hours. Brain teasers. Practice 10 standard ones — clock hands at 3:15, 25 horses 5 tracks, two-eggs-hundred-floors. The classics come up most. The interviewer cares less about the answer than the process. Talk through your thinking out loud. The right answer delivered in silence loses to the wrong answer delivered with a clean thought process — banks recruit for thinking, not for trivia.
Afternoon, 2 hours. Market sizing — estimate the global M&A advisory fee pool, estimate the US PE deal volume, estimate something local. Banks do ask these. Practice the structure: top-down, bottom-up, sanity-check. Ground every assumption — say where it came from, even if you are estimating.
Evening, 3 hours. Firm-specific drilling. Pull the firm's most recent earnings call or annual report. Read it. Be able to talk about: revenue mix by division, recent strategic moves, leadership changes, the firm's stated strategic priorities. Read 5 deal announcements from the firm. Pick one you find genuinely interesting. Be ready to talk about it for 60 seconds.
Prepare your "what questions do you have for me" — six questions, of which three are firm-specific (showing you read the news), two are role-specific (showing you understand the day-to-day), one is personal (asking the interviewer something about their own path). Personal questions build rapport and change recall pattern. The interviewer remembers the candidate who asked them something thoughtful about their career — that is a real edge.
Day 6: Mock interviews
Goal: stress test. The single highest-value day if you do it right.
Morning, 2 hours. Mock 1, technical-heavy. With a current banker or experienced finance student. Tell them to be aggressive. Tell them to hit your "killer" questions from Day 1. Do not mock with a friend who will be polite — the mock should feel harder than the real interview, not easier. Take notes during their feedback.
Afternoon, 2 hours. Mock 2, behavioral + fit. Different person if possible. Have them grill on "why this firm" and "why investment banking." Notes again.
Evening, 3 hours. Address the gaps surfaced by mocks. Specifically the ones you fumbled on. Re-practice those exact questions until they are clean.
If you cannot get two real mocks: at minimum, do one with a current banker — a paid mentor session, €100-150, is by far the highest-leverage spend in the prep window. A 60-minute mock with a current associate can change the outcome of the superday more than any 4 hours of solo prep. Most candidates skip this. Do not be most candidates.
Day 7: Logistics + reset
Goal: sharp, rested, prepared. Do not try to learn anything new.
Morning, 2 hours. Re-read your one-page cheat sheet — by now you should have built one with your story, why-IB, why-firm, the five most-likely technicals. Walk through your DCF and LBO out loud, one final time.
Afternoon, 2 hours. Logistics. Pick the suit. Print 6 copies of your CV. Test the route or the video setup. If virtual: test camera angle, lighting, mic, internet, and the platform — Zoom vs Teams vs Webex. Use the same laptop you will use on the day. Set up your snack, water, and notebook for the room.
Evening, 2 hours max. Light review. Do not study new material. Bed by 10 PM. The marginal IQ point from sleep is bigger than the marginal IQ point from one more hour of LBO drilling on the night before. This is the most-violated rule on the list. Candidates who pull a midnight session before the superday consistently underperform candidates who slept 8 hours and reviewed 30 minutes in the morning.
The morning of
Eat a real breakfast. Caffeine if you normally drink it; not if you do not. Re-read your one-pager once. Arrive 15 minutes early or log in 5 minutes early. Wait — do not pace. Bring your CV, a notebook, a working pen, and water.
During the day: between rounds, write down the three questions that surprised you. They will come up again with the next interviewer. Most superdays have overlap by design — the bank wants to see how you answer the same question to different people. Adjust your answer slightly each time. Identical recitations across rounds read as memorized; small variations read as authentic.
Common mistakes that cost offers
Going off-script during "tell me about yourself" because the interviewer seemed bored. The interviewer is testing whether you can deliver a controlled answer under social pressure. Stick to the script.
Reciting a memorized DCF in monotone. Practice it until it feels conversational. Hesitate intentionally at the right moments. This is not a recital; it is a conversation.
Saying "good question" before answering. Stop saying that. It buys time but interviewers have heard it 1,000 times. It signals nothing except that you need filler.
Asking only firm-specific questions at the end. Ask the interviewer something personal — about their own path, their division, what they wish they had known at your stage. Builds rapport. Changes how they remember you when they go into the decision-making call.
Apologizing during the interview. If you fumble a technical, recover and move on. Do not say "sorry, let me try that again" three times. Confidence under stumble is itself a signal — banks operate under stumbles all day, every day. They are hiring for resilience as much as for accuracy.
Lying about coverage. If you have never modeled an LBO and they ask you to walk through one, do not pretend. Say "I have read through several LBO walk-throughs but I have not built one from scratch — let me walk you through what I understand and you can tell me where I am wrong." Honesty + framework beats confident BS every time. The interviewer is testing whether you can think in real time, not whether you have memorized the answer.
Asking "is there anything in my CV that concerns you" at the end. This invites criticism that might not exist. Do not.
After the superday
Send a thank-you email within 24 hours to each interviewer. Three to four sentences. Reference one specific thing they said. Not "I really enjoyed our conversation" — that is filler. "Your point about how the cross-border M&A landscape changed after 2022 is something I am going to think about more" — that is recall.
Write down the three hardest questions you got. These are useful for next time. If you get the offer: congrats. The 7 days worked. If you do not: ask for feedback if the firm offers it. Most will not give specifics, but some will. Move on faster than you want to. The next firm is a different roll, and bitterness compounds.
Seven days is enough to perform meaningfully better than your last interview round, but it is not enough to fake fundamentals you do not have. The plan above assumes you have already done the foundational work and need to compress + drill. If you want a current banker to run a stress-test mock interview during your prep week, find one on Vocacia. A €120 60-minute mock with a current MD or VP is the highest-leverage spend in your entire prep, and it is the one piece of prep most candidates skip.