Six interviews back to back.
Then the real one feels easy.

A Superday is the final stage of investment banking and related finance graduate processes in the US. Candidates are flown to the firm for a single day of back-to-back interviews, usually 4 to 8 rounds with associates, VPs and MDs. Each interview is 30 to 45 minutes, often with no break in between. Offers are typically issued within 24 hours of the Superday concluding. The format is brutal precisely because it is sequential - you can prepare for one perfect interview, you cannot prepare for the cumulative fatigue of six in a row.

Superdays are predominantly US, predominantly investment banking, and predominantly individual interviews back-to-back. UK assessment centres include more group exercises, in-tray exercises and presentations alongside individual interviews. Both are the final stage of their respective processes and both are make-or-break, but the format is different. If you are interviewing for US IB roles you will face Superdays; if you are interviewing for UK graduate schemes you will face assessment centres. Some MBB firms in the US use a hybrid format (back-to-back cases plus fit interviews); this is closer to a Superday than to an AC.

All US bulge-bracket investment banks (Goldman Sachs, J.P. Morgan, Morgan Stanley, Bank of America, Citi, Wells Fargo, Barclays, Deutsche Bank), elite boutiques (Evercore, Lazard, Centerview, Moelis, Houlihan Lokey, PJT Partners, Guggenheim, Rothschild), sales & trading and asset management arms of the same firms, and increasingly the larger private equity associate programmes (Blackstone, KKR, Carlyle, Apollo). Some quant trading firms (Citadel, DE Shaw, Two Sigma) use the term loosely for their final-round day.

Typically 4 to 8 interviews of 30 to 45 minutes each, sometimes including a meal with current analysts in the middle. The full day runs 4 to 8 hours. Each interview is graded independently and the hiring committee meets at the end of the day - or the next morning - to decide on offers. Consistency across interviews matters more than peak performance in any single one; one cold interview from an MD can sink a strong day.

A typical Superday includes: 2 to 3 fit / behavioural interviews (why banking, why this firm, walk me through your CV, leadership and teamwork stories), 1 to 2 technical interviews (DCF, LBO, EV/EBITDA, accounting, market sizing), 1 to 2 market and commercial awareness interviews (recent deals, sector views, an interesting M&A transaction you have followed), and often a culture / fit interview with a senior banker. The simulator runs questions across all four categories, weighted by what real Superdays at your target firm have asked.

Vyo runs 4 to 6 back-to-back interviews in your chosen format with multiple AI interviewer personas: warm associate, neutral VP, sceptical MD. The pressure compounds across interviews the way it does on a real Superday - your fourth answer to "tell me about a time you led a team" needs to be as crisp as your first. The cumulative scoring shows how your performance held up over the full day, not just one round, which is the metric the hiring committee actually uses.

Both. You can run individual rounds (1 fit, 1 technical) to drill a specific category, or run the full stack (4 to 6 back-to-back) to rehearse the stamina. Most candidates start with individual rounds 2 weeks out, run their first full stack 1 week out, and run a second full stack 48 hours out at grilling difficulty.

You can still run a Superday simulation; the AI defaults to the bulge-bracket banking standard, which covers 80% of what you will face at any IB firm. For firms with a full Pack (Goldman, JPM, Morgan Stanley, Evercore, Lazard and others) the calibration is firm-specific: persona style, question difficulty, technical depth all adjusted to that firm.