An investment banking mock interview is a timed simulation of a real IB interview — technicals (M&A, DCF, LBO, accounting), behaviorals, and follow-ups — graded against the rubric bankers actually use. Banking Prep AI runs that simulation in text or live voice, returns structured feedback, and tracks readiness across topics.
Voice Mock is live today on Pro and Elite plans. Text mock is free to start.
What is an Investment Banking Mock Interview?
An IB mock interview is a rehearsal of the format used by bulge bracket, elite boutique and middle-market banks: a 30–60 minute mix of behavioral fit questions ('walk me through your resume', 'why this bank'), technical drills (accounting, valuation, M&A, LBO), and unscripted follow-ups designed to break shallow answers.
Done well, a mock surfaces three things you cannot self-diagnose: pacing, depth on follow-ups, and how you sound under pressure. Done badly, it just rehearses the same answers you already wrote down.
Why generic mocks fail in IB
Most 'AI interview' tools were built for software engineering or general business — not for the specific shape of an IB superday. The failure modes are predictable.
- They do not push on follow-ups. A real associate asks 'and then?' four times. Generic ChatGPT prompts stop at one.
- They grade vibes, not the rubric. IB technicals have right answers. 'Good job' is not feedback.
- They miss the format. HireVue-style timed video, panel rounds and superdays each have their own pacing — generic tools collapse them into one.
- They reuse stale question lists. PDFs from 2018 do not reflect current LBO mechanics or what M&A teams ask in 2025.
- They ignore voice. Most candidates fail not on content but on delivery — and you cannot fix delivery by typing.
How Banking Prep AI runs your IB mock
Six capabilities, designed around how bankers actually evaluate candidates.
- Technical questions. Curated banks across accounting, DCF, comps, precedent transactions, M&A accretion/dilution, LBO mechanics and brain teasers.
- Behavioral questions. Walk-me-throughs, 'why banking', 'why this group', conflict, leadership, failure stories — graded on structure, specificity and ownership.
- Follow-ups. The AI does not stop at one answer. It probes assumptions, pressure-tests numbers, and asks the second- and third-order question you will get on a superday.
- Structured feedback. Each answer is scored on content, structure, clarity and confidence, with a written rationale and the sharper version of your answer.
- Voice Mock (LIVE). Push-to-talk, real time. Trains pacing, filler words and on-the-spot reasoning. Available on Pro and Elite via prepaid voice packs.
- Readiness tracking. Topic-level mastery so you know whether you are fluent on LBO mechanics or still bluffing.
Text Mock vs Voice Mock
Both modalities run the same question banks and the same rubric. They differ in what they train.
| Text Mock | Voice Mock (LIVE) | |
|---|---|---|
| Format | Typed Q&A | Push-to-talk, real time |
| Best for | Deepening technical depth, drafting answers | Pacing, delivery, HireVue-style readiness |
| Time per session | 15–60 min | 5–30 min (prepaid minutes) |
| Plan | All paid tiers (free text mock available) | Pro and Elite |
| Feedback | Structured per answer | Structured + delivery notes |
What a strong IB mock should test
A real IB rubric grades five things — and your mock should too.
- Technical accuracy. Formulas, accounting links, valuation logic — measured against right answers, not vibes.
- Structure. Top-down answers, signposted, no rambling. Bankers can grade structure in 30 seconds.
- Commercial instinct. 'Why is this deal interesting' beats memorized definitions every time.
- Composure under follow-ups. Three-deep questioning without flinching. This is what superdays actually test.
- Fit signal. Concrete reasons for the bank, the group, the seat. Generic answers get filtered out.
Alternatives compared
Most IB candidates cobble together a prep stack from PDFs, YouTube, ChatGPT and the occasional paid coach. Each piece does one thing well — and several things badly.
| YouTube / PDFs | Generic ChatGPT | 1:1 Coaching | Banking Prep AI | |
|---|---|---|---|---|
| IB-specific question banks | Partial | No | Yes | Yes |
| Live voice simulation | No | No | Yes | Yes |
| Structured, rubric-based feedback | No | Inconsistent | Yes | Yes |
| Follow-up pressure | No | Shallow | Yes | Yes |
| Available 24/7 | Yes | Yes | No | Yes |
| Cost | Free / low | Free | $150–$500/hr | Subscription |
| Tracks readiness over time | No | No | Manual | Yes |
Real interview insight
A typical second-round technical is not 'walk me through a DCF'. It is 'walk me through a DCF — now your terminal value just dropped 30%, defend or change your assumptions'. Mocks that do not replicate that second move are training the wrong muscle.
Banking Prep AI is built around the second move. Every answer can trigger a follow-up that probes the weakest part of what you just said.
Who this is for
Banking Prep AI is built for IB candidates at every recruiting stage and for laterals coming from adjacent fields.
- Off-cycle, summer and FT candidates. Preparing first rounds, superdays and final rounds at bulge brackets, elite boutiques and middle-market banks.
- Lateral candidates. Moving from audit, credit risk, corporate banking, consulting, sales & trading, middle office or back office into IB.
- Non-target candidates. Need rep volume to compete with target-school peers who already had four practice partners.
- Brazil and global candidates. Prepping bulge bracket, elite boutique, BTG, Itaú BBA, XP, Bradesco BBI and middle-market banks. Banking Prep AI is not affiliated with any bank mentioned.
Common mistakes in IB mock prep
- Practicing only what you already know. Use readiness tracking to drill weak topics first — accretion/dilution, LBO returns, working capital.
- Skipping voice. You can write a perfect DCF walkthrough and still freeze on a superday. Voice reps are not optional once content is solid.
- Memorizing one walk-me-through. Bankers will interrupt. Practice three variants — 90-second, 2-minute, 3-minute — and rehearse pivots.
- Treating behaviorals as warm-up. Behaviorals carry as much weight as technicals at most banks. Grade them on structure, specificity and ownership — not just delivery.
- No follow-up pressure. If your prep partner does not ask 'and then?', they are not preparing you. The AI does.
What a Banking Prep AI mock looks like
A typical 30-minute text mock: one walk-me-through, two technicals (accounting + valuation), two M&A or LBO drills, and one behavioral with three follow-ups. Each answer is scored on content, structure, clarity and confidence, with a sharper version of the answer in the feedback panel.
A typical 15-minute Voice Mock: one walk-me-through and three technicals, push-to-talk, with delivery feedback (pacing, filler words, hesitation) layered on top of the standard rubric. Voice minutes are deducted from your prepaid pack.
Stop reading about mocks. Run one.
Reps beat reading. Start with a free text mock today, then add Voice Mock when you are ready to defend your answers out loud.
Frequently asked questions
Keep going
Drill the underlying technicals next: Investment Banking Interview Questions (2026 Guide)