SIG Market-Making Game + EV Games Interview

What the round is, what SIG asks, and how to prepare, from candidate reports and the QuantVault practice set.

Stage 5 of 74 practice problemsTrader / Quant ResearcherUpdated October 20, 2026

The SIG Market-Making Game + EV Games interview is stage 5 of 7 in the SIG interview process, after the Take-Home Data Exercise + On-Site Presentation. Format: Interactive · with a trader. SIG's games-as-interview round: quote a bid/ask spread on an uncertain value, adjusting as a trader trades against you; explain every choice.

Preparing for this round? Practice the 4 questions mapped to the SIG Market-Making Game + EV Games, with worked solutions. A free account saves your progress.

What the Market-Making Game + EV Games tests

Poker-style EV games such as the AKQ betting game probe EV and risk. Some older candidate reports also mention Acey-Deucy; other reports describe live poker as part of SIG's training culture rather than the interview.

QuantVault maps 4 practice problems to this round. By topic, the biggest groups are expectation (2), game theory (1), market microstructure (1); by difficulty, 1 easy, 2 medium and 1 hard.

Who takes this round: Trader / Quant Researcher candidates. See the full SIG process and who takes each round.

How to prepare for the Market-Making Game + EV Games

  • Quote a credible, defensible spread and adjust. Start wider when you're uncertain, tighten as info arrives, and always be able to justify the level.
  • AKQ / poker = pure EV + bluffing math. Know the mixed strategy; explain when to bet/fold in expectation terms.
  • Manage risk, not just edge. They reward discipline and clear reasoning over aggressive P&L.

Further reading: Market-making game interview guide · Behavioral questions at trading firms · How quant superdays work.

Question types in this round

The 3 largest question types in the SIG Market-Making Game + EV Games practice set; across them the most common sub-topics are expected value. The questions themselves, with worked solutions, are in the round practice.

Expectation2 in this round

How expectation questions work →

Game Theory1 in this round

How game theory questions work →

Market Microstructure1 in this round

How market microstructure questions work →

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Frequently asked questions

What is the SIG Market-Making Game + EV Games interview?

It is stage 5 of 7 in the SIG interview process, after the Take-Home Data Exercise + On-Site Presentation. Format: Interactive · with a trader. SIG's games-as-interview round: quote a bid/ask spread on an uncertain value, adjusting as a trader trades against you; explain every choice. Poker-style EV games such as the AKQ betting game probe EV and risk.

What questions come up in the SIG Market-Making Game + EV Games interview?

The practice set QuantVault maps to this round centers on expectation, game theory, market microstructure.

How should I prepare for the SIG Market-Making Game + EV Games interview?

Quote a credible, defensible spread and adjust. Start wider when you're uncertain, tighten as info arrives, and always be able to justify the level. AKQ / poker = pure EV + bluffing math. Know the mixed strategy; explain when to bet/fold in expectation terms.

What comes after the Market-Making Game + EV Games?

The Onsite / Superday (stage 6 of 7). Format: Onsite · multiple 1-hr rounds + dinner.

Practice the SIG Market-Making Game + EV Games round

Work the 4 mapped practice problems with progress tracking, then move to the next stage of the SIG funnel.