Performance Analyst Interview Questions UK: 8 Real Questions and What Interviewers Want

Most Performance Analyst interviews in the UK follow a pattern, and knowing it beats guessing. Below are eight questions from our bank of 12, each with a note on what the interviewer is really after.

Eight Performance Analyst interview questions, and what the interviewer is thinking

1. What is the difference between time-weighted and money-weighted returns, and when would you use each?

Why they ask: This is the fundamental performance measurement question.

2. Explain how performance attribution works and how you would interpret allocation, selection and interaction effects.

Why they ask: Attribution is the key analytical product of a performance team.

3. A portfolio manager says your reported return for last quarter is 60 basis points lower than they expected. What do you do?

Why they ask: They test technical resilience and communication when numbers are challenged.

4. What are the GIPS standards, and what is a composite?

Why they ask: GIPS compliance is central to many performance teams.

5. Tell me about a time you found an error in performance numbers, and how you handled it.

Why they ask: Errors in performance data are serious, and they want honesty and process.

6. Which risk-adjusted performance measures do you use, and what are their limitations?

Why they ask: They test whether you can contextualise returns by risk.

7. You discover after a client report has been sent that an incorrect price affected the reported return. What do you do?

Why they ask: They test accountability and handling of a client-facing error.

8. What does a performance analyst do day to day, and what appeals to you about the role?

Why they ask: They want to see you understand the role's blend of data and investment insight.

A sample answer to question 1

What is the difference between time-weighted and money-weighted returns, and when would you use each?

A time-weighted return measures the performance of the portfolio manager's investment decisions by removing the effect of external cash flows. It does this by calculating returns for sub-periods between cash flows and geometrically linking them, so the timing and size of client contributions or withdrawals don't distort the result. A money-weighted return, such as the internal rate of return, reflects the investor's actual experience, including the timing and size of cash flows. So if a client adds money just before a market fall, the money-weighted return will be lower than the time-weighted return, even though the manager's skill is the same. For comparing managers, GIPS and most institutional reporting use time-weighted returns, ideally with valuation at each large cash flow. For private equity, real estate and clients who control their own cash flows, money-weighted returns are more relevant. I'd typically report both where a client wants to understand their own outcome, and explain the difference.

Common mistake to avoid: Mixing up which measures manager skill; ignoring cash flow timing

Want the rest?

Full model answers, key points and common mistakes for all 12 questions are on the Performance Analyst interview questions page. The first five are free, no sign-up needed.