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
098Would you deliver an analysis on time with 90 percent confidence in the numbers, or delay it to get to 100 percent?Goldman SachsInvestment Banking · New York · 2025
Say this
Deliver on time, and flag exactly which parts I am not confident in. In banking a late answer is often useless, but an unqualified wrong number is worse. The professional move is to hit the deadline with the uncertainty labelled.
Then walk it
- Start by rejecting the premise that those are the only two options. The third path is to deliver on time and say precisely where the 10 percent of doubt sits.
- Then the judgement: it depends on what the number is for. A directional figure for an internal discussion can go out at 90 percent. A number going into a fairness opinion, a public document or a signed agreement cannot.
- So I would triage: is this decision-critical and irreversible, or is it an input to a conversation that will iterate?
- And the escalation point, which is what they are really testing: I would tell my associate before the deadline, not after, so they can decide whether to take the risk or buy more time from the client. Hiding the uncertainty is the only genuinely wrong answer.
- Then close with the practical habit: I would send it with a short note saying which two assumptions are soft and what I would need to firm them up.
Where candidates lose it
Picking one horn of the dilemma and defending it absolutely. Both extremes are wrong. The answer is on time, with the uncertainty disclosed, escalated early, and the threshold set by what the number will be used for.
Expect next
- What if your associate tells you to send it without the caveat?
- Tell me about a time you were in an ethical dilemma.
- Tell me about a time you fell behind schedule.
Reported by candidates at Goldman Sachs (Investment Banking, New York, 2025). 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.