Trader Interview Questions UK: 8 Real Questions and What Interviewers Want

Before your Trader interview, it helps to see the questions from the interviewer's side. We have picked eight from our set of 16 and added the reason each one gets asked.

Eight Trader interview questions, and what the interviewer is thinking

1. Talk me through your trading approach: how do you generate ideas, size positions and decide when to exit?

Why they ask: The central question for any mid-level trader; it shows process, edge and discipline.

2. How are UK equities traded today? Explain the venues, order book dynamics and the difference between lit, dark and systematic internaliser liquidity.

Why they ask: Market structure knowledge is essential for an equity trader executing real orders.

3. How would you execute a large order in a stock that trades low volumes, and how do you measure whether you did a good job?

Why they ask: Execution skill and transaction cost analysis are daily concerns for a trader.

4. How would you hedge a long single-stock position, and what residual risks would remain?

Why they ask: Hedging is core to the trader's role and reveals understanding of basis and beta.

5. How do UK short selling rules work, and what are the practical considerations of shorting a stock?

Why they ask: Short selling carries regulatory and practical constraints that a trader must know.

6. A sales colleague asks you to share details of a large client order so they can pre-position their own personal account. What do you do?

Why they ask: Tests integrity, understanding of front-running and market abuse boundaries.

7. Tell me about a trade or position that went against you. How did you manage it and what did you learn?

Why they ask: Reveals risk discipline and learning ability, the key differences in good traders.

8. What does a typical day as a trader involve?

Why they ask: Tests realistic understanding of the role.

A sample answer to question 1

Talk me through your trading approach: how do you generate ideas, size positions and decide when to exit?

I start with a clear edge, whether that is fundamental, flow-based or event-driven. For example, I may look for a stock where consensus earnings are too high given supply chain data, or a name that is likely to be hit by index changes. I write down the thesis, the catalyst, my target and what would prove me wrong before I trade. For sizing, I think in terms of risk: how much I lose if the stop is hit, as a share of my risk budget, and I scale down where liquidity is poor or conviction lower. I check correlation with the rest of my book so I am not accidentally doubling up on the same factor exposure. For exits, I have a stop based on invalidation of the thesis, not just a price, partial profit-taking at targets, and a time stop if the catalyst passes. I keep a journal and review it monthly.

Common mistake to avoid: No defined exit; sizing by gut feel

Want the rest?

Full model answers, key points and common mistakes for all 16 questions are on the Trader interview questions page. The first five are free, no sign-up needed.