Investment Banking interview preparation
Every question below is either traced to a named firm from a public candidate report, or tagged at desk level when we could not trace it. Answers are written the way you would actually say them out loud — answer first, then the mechanism, then the limitation.
100 questions, mapped to the firms that asked them
- Questions
- 100
- Traced to a firm
- 100
- Firms
- 46
- Updated
- September 2026
072Where did the S&P 500 close last night, and what is the 10-year trading at?Morgan StanleyWealth Management · Boca Raton · 2026RBC Capital MarketsSales and Trading · London · 2025
Say this
There is no clever answer to this one. You either know the levels or you do not, and not knowing them tells the interviewer you do not follow markets.
Then walk it
- Know the index level and the direction of the last session. Approximate is fine; blank is not.
- Know the 10-year Treasury yield, the policy rate, oil, gold, and the dollar index. For an India-facing interview, add the Nifty, the 10-year G-sec and the rupee.
- Have one sentence on why the market moved. 'Equities were up on a softer inflation print and the 10-year fell about five basis points' is a complete answer.
- If you genuinely do not know, say so once, quickly, and give the level you last checked with the date. Do not guess a precise number.
- Build the habit rather than cramming: five minutes a morning on one market wrap for the two weeks before you interview is enough.
Where candidates lose it
Guessing a precise number and being wrong. That is worse than admitting you have not checked since yesterday. Interviewers on trading floors do this specifically as a preparation test, and they already know the answer.
Expect next
- Why did it move?
- What is X commodity trading at?
- What do you think the index closes at by year end?
Reported by candidates at Morgan Stanley (Wealth Management, Boca Raton, 2026); RBC Capital Markets (Sales and Trading, London, 2025). Source: Wall Street Oasis.
074What is the biggest challenge facing banks today?RBC Capital MarketsInvestment Banking · London · 2025UBSPrivate Wealth Management · New York · 2026
Say this
Pick one and defend it rather than listing five. I would argue disintermediation: private credit has taken a large share of leveraged lending, and the balance sheet advantage banks used to have is worth less than it was.
Then walk it
- The structural version: private credit funds now hold loans banks used to underwrite and syndicate. That removes fee income and weakens the cross-sell that won advisory mandates.
- Regulation compounds it. Capital rules make balance-sheet lending expensive for banks and do not apply to the funds competing with them, so the business migrates to where the capital is cheapest.
- Then the cyclical layer: deposit costs and the funding mix. The 2023 regional bank failures showed how quickly deposits move when rates rise and how unhedged duration in the securities book can be fatal.
- Then technology and cost: legacy systems, payments competition from fintech, and now the cost of building AI infrastructure while the payoff is unproven.
- But I would come back to the one point: banks are being squeezed out of the middle. The answer they want is a view, held with a reason, not a survey.
Where candidates lose it
Listing regulation, technology, competition and cyber in one breath with no argument. The question is an invitation to have an opinion. Pick the one you can defend, make the case in three sentences, then acknowledge the strongest counterargument.
Expect next
- Why has private credit taken share?
- What should banks do about it?
- How does that affect the division you are applying to?
Reported by candidates at RBC Capital Markets (Investment Banking, London, 2025); UBS (Private Wealth Management, New York, 2026). Source: Wall Street Oasis.
078Tell me a piece of recent news and how it affects this bank.RBC Capital MarketsInvestment Banking · London · 2026BlackRockAsset Management · Tokyo · 2026Deutsche BankGeneralist · New York · 2026
Say this
Pick something with a direct line to their revenue, not a general headline. Then trace the chain: event, effect on a market they operate in, effect on a specific business line of theirs.
Then walk it
- Choose deliberately. A deal in their strongest sector, a regulatory change in their home market, or a competitor's result that reveals something about their position.
- State the fact precisely, with the number. Vagueness here is fatal because it suggests you skimmed a headline.
- Then the chain. For example: a large take-private in their coverage sector signals that sponsors are back in large-cap deals, which flows to their leveraged finance and sponsor coverage revenue, and they have a strong franchise there.
- Then say something specific about the firm that proves you researched it: a mandate they ran, a league table position, a business they recently built or exited.
- Close with why it matters to you: the growth area you want to work in. That converts a market question into a 'why this firm' answer, which is what it really is.
Where candidates lose it
Bringing a headline with no connection to their business, or one they will know better than you and can immediately correct. Pick something in their sector, know the number, and rehearse the three-step chain.
Expect next
- Why does that matter for the division you applied to?
- Which of our competitors benefits more?
- What else have you been reading?
Reported by candidates at RBC Capital Markets (Investment Banking, London, 2026); BlackRock (Asset Management, Tokyo, 2026); Deutsche Bank (Generalist, New York, 2026). Source: Wall Street Oasis.
Firm tags come from public, anonymous candidate reports on Wall Street Oasis: strong signal, not sworn testimony. Firms are named as the places a question was reported, not as partners of Fin Maverick. Answers are written for this page to show how to think out loud; they are not scripts to recite.