What SIG’s postings confirm, what candidates report about the Problem Solving Assessment, and how to practice probability under time pressure.
Closest practice: original probability questions in the reported format; SIG does not publish its test.
By the Game Assessment Prep research teamUpdated November 10, 2026How we research
SIG does not describe the assessment beyond “quantitative and problem-solving skills.” The content below is reported by a prep site.
Similar format
Reported as the bulk of the 17 questions: conditional probability, Bayes’ rule, expected value and counting. Our 17-in-60 probability mock uses multi-step questions and assumes a calculator.
Source: Trading Interview: The SIG Problem Solving Assessment
Explore Probability and statistics problemsCategory practice
Reported alongside the probability questions. Our practice does not include general brain teasers; the expected value drill covers the closest skills.
Source: Trading Interview: The SIG Problem Solving Assessment
Explore Maths brain teasersSIG is known for probability-heavy hiring, and its online assessment is the first filter. SIG’s own postings describe it only as testing quantitative and problem-solving skills.
The details below come from a prep site that collects candidate reports. Treat the counts as a guide: SIG does not publish them, and they have changed before.
Because the assessment is reported to allow a calculator, the questions lean on reasoning rather than arithmetic speed: conditional probability, Bayes’ rule, expected value and counting.
SIG’s Sydney trading internship posting lists the stages as application, an online assessment of quantitative and problem-solving skills, phone interviews (behavioral and technical), and an office interview with a trader interview, desk rotation and office tour.
This is the only description SIG gives on its postings. It does not name the questions, timing or platform.
A prep site describes the Problem Solving Assessment as 17 questions in 60 minutes, mostly probability and statistics plus maths brain teasers, with conditional probability and Bayes’ rule common and the last questions hardest.
Source: Trading Interview: The SIG Problem Solving Assessment
The same site quotes test instructions from October 2026 allowing a calculator, pen and paper, and says candidates can move freely between questions.
Source: Trading Interview: The SIG Problem Solving Assessment
The site reports a move from Mettl to HackerRank between mid-July and mid-August 2026 with the same test, invitations in waves from late May to October 2026, and only a few days to a week to finish.
Source: Trading Interview: The SIG Problem Solving Assessment
Other offices and roles may differ; follow the posting you apply to.
Invitations arrive soon after you apply, and the window to finish is short.
| Cycle | Application dates | Likely assessment window | Evidence |
|---|---|---|---|
| 2026–27 cycle | Set by each posting | A few days to a week after the invitation (reported) | Single source A prep site reports invitation waves in late May to June, August and October 2026, with some candidates given three days. Source: Trading Interview: The SIG Problem Solving Assessment |
Prepare before you apply, because the assessment can arrive within days and must be finished quickly.
Shrink the sample space to what you are told, then count. Work base-rate problems with explicit numbers.
Fair prices, games with a choice to reroll or stop, and waiting times such as the expected tosses until two heads in a row.
About three and a half minutes a question: practice a 17-question, 60-minute set with a calculator to hand.
Candidates report probability and expected-value questions in later rounds; explain your reasoning out loud.
SIG says it tests quantitative and problem-solving skills. A prep site reports 17 questions in 60 minutes, mostly probability and statistics with some brain teasers.
A prep site quotes October 2026 instructions that allow a calculator, pen and paper. SIG does not publish this.
Reports say a few days to a week after the invitation, so prepare before you apply.
SIG’s Sydney posting lists phone interviews (behavioral and technical) and then an office interview with a trader.
The sources below support this guide. Claim labels distinguish official information, candidate reports, and research inferences.
Susquehanna International Group · Accessed
Trading Interview · Accessed
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