We've compiled a comprehensive overview of SIG 2026 Quant and Susquehanna OA. This guide covers Online Assessment (OA), Quant Assessment, and Phone Interview question types, giving you insight into what to expect and how to prepare. The core focus is probability reasoning, decision-making, and fast computation skills.
OA Question Types
The OA mainly tests mathematics, probability, and decision-making. There aren't too many questions, but each one emphasizes logical clarity and model fluency.
Random Events & Probability
- Two trips last year, one in December—what is the probability both are international?
- Randomly select three points on a unit circle—what is the probability of forming an obtuse triangle?
- Pick 3 numbers from 1–20—what is the probability that one equals the average of the other two?
- Three independent U[0,3] random variables—probability that the median falls in [1,2].
Random Processes & Expectation
- Alternate rolling dice A and B until A rolls a 6—compute probability game ends at A’s turn and expected number of rolls.
- Bus waiting time problem: Route A U(0,10), Route B U(0,20)—calculate expected waiting time.
- Ball drawing problem: Add a blue ball after each draw, compute expected draws until all balls are blue.
- Cube cutting problem: Cube painted blue, sliced horizontally and vertically twice—probability a random cube has the original color on top.
- Biased coin with probability p, rolled 16 times—expected number of consecutive heads.
Strategy & Decision Making
- Penney's Game: Player 1 picks HHT, Player 2 picks HTH—who has the advantage and winning probabilities?
- Poker blind raise: Friend raises to $20, what is the minimum win probability to call?
- Decision making with risk: Prize options of $1,000, $4,000, $250—calculate minimum correct probability.
Combinatorics & Counting
- Eight-person round table: three random seats—probability at least two are adjacent / probability all are non-adjacent.
- n lines cutting a circle—maximum number of regions possible.
- Random chord on a unit circle—expected length.
Phone Interview Questions
Beyond the OA, SIG’s phone interview covers both Behavioral and quantitative reasoning:
- Why did you choose Quant Research?
- Are you interviewing for other QR or trading roles?
- Describe your research experience.
- Why SIG?
- Expected graduation and post-graduation plans (technical / academic / finance)?
Summary & ProgramHelp Guidance
In short, the core skills SIG tests are:
- Probability modeling and statistical thinking
- Strategy and risk decision-making
- Fast, stable computation and implementation
If you struggle with:
- OA timing or probability questions
- Phone interview clarity and structure
- Efficient practice and review methods
We provide full SIG OA and interview support via ProgramHelp Team including:
- Simulated OA & Quant Assessment sessions
- Real-time voice hints and problem-solving guidance
- Unobtrusive assistance to improve accuracy and efficiency
Many candidates have successfully secured SIG internship offers after working with us. For OA or interview guidance, you can contact the ProgramHelp Team directly.
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