Trading
Practise probability, expected value and conditional reasoning through games and decisions.
Prepare for SIG interviews
SIG trading interviews are heavily focused on probability, games and decision-making. You need to calculate cleanly, compare options and explain why one choice has better expected value.
Probability
Game theory
Expectancy
Strategy
Quant research
Recruiting context
About SIG interviews
SIG trading interviews use probability as a decision tool. Expect questions built around games, cards, coins, odds and expected value.
Conditional probability and expected value matter because you often need to choose between different actions. Strong answers show the calculation and then explain what it means for the strategy.
Quant research is more focused on statistics, programming and data. Software engineering and Discovery Day need their own preparation, so use the guide for the stream you applied to.
Research
Focus on statistics, coding, data analysis and explaining how you would test a signal.
Software / discovery
Use the guide for your exact stream. Software and Discovery Day need different preparation from trading.
Prepare deliberately
Choose your SIG preparation path
Different roles reward different preparation. Start with the closest path, then use the resource sections below.
Path 1
Quantitative Trading
Practise probability as a decision-making skill.
- 1
Start with the SIG trader guide to understand the trading process.
- 2
Use the SIG OA if your application includes quantitative screening.
- 3
Practise conditional probability, expected value and game-style questions.
- 4
After each calculation, explain which choice is better and why.
Path 2
Quantitative Research
Focus on statistics, programming and research judgement.
- 1
Start with the SIG research guide.
- 2
Refresh probability and statistics, then add coding and data work.
- 3
Practise explaining how you would test a signal and check whether it is real.
Path 3
Software Engineering / Discovery
Use the guide for the exact programme or role.
- 1
Start with the software-engineering or Discovery Day guide.
- 2
Keep probability practice secondary to the technical or programme-specific work.
Interview practice
SIG interview questions
Use these questions for probability, expected value and strategy. Always explain what the result means for the decision.
Timed practice
SIG online assessment
Use the simulator for timed quantitative screening if it matches your process.
Role-specific direction
SIG interview guides
Choose the guide for trading, research, software engineering or Discovery Day.
Trading guide
Quantitative Trader at SIG
Go deeper on how probability, game theory and trading judgement show up across the trader process.
Research guide
Quantitative Research at SIG
Prepare for statistics, modelling, data and code with a stronger focus on testing whether a signal is real.
Engineering guide
Software Engineering at SIG
Follow the engineering path for coding and technical interviews instead of borrowing a trader-first preparation plan.
Programme guide
SIG Discovery Day Guide
Prepare for Discovery Day as its own programme rather than assuming it mirrors a full-time trader process.
Fill the gaps
Strengthen the underlying skills
Firm-specific preparation works best on top of solid fundamentals. Use these only where they address a real weakness in your preparation.
Common questions
SIG interview preparation FAQ
Short answers for broad questions; use the dedicated guides, assessment tools and interview-question bank for deeper practice.
What makes SIG trading interview preparation distinctive?
SIG trading interviews often use games and probability to test decision-making. Practise expected value, conditional probability and explaining which action you would take.
Do I need to be an expert card or poker player for SIG?
No. Cards and games are useful because they test probability, information and strategy. You do not need specialist poker knowledge.
How should SIG quantitative-research preparation differ from trading?
Research puts more weight on statistics, programming, modelling and real-world data. Be ready to explain how you would test a signal and check for weak assumptions.
Should I use the SIG online assessment tool for every role?
Only use it if your application includes similar quantitative screening. Put the rest of your time into the live interview or technical work for your role.
Keep moving
Turn the plan into practice.
Start with the SIG question bank, then work through the specific assessment or role guide that matches your next stage.