Optiver "Beat the Odds" — the exact 2026/27 test, free
This is a screen-for-screen replica of the real Beat the Odds module in Optiver’s online assessment, rebuilt from 2026/27 candidate captures: the same instructions page, the same tutorial, and three full sets of the reported questions with the original answer options in their original order.
Free, in-browser, no signup — opens the full assessment on its own page, exactly like the real screen.
What the real test looks like
Despite the name, the current Beat the Odds is not a betting game — there is no bankroll and no bet sizing. It is a timed probability quiz: each question gives a scenario (dice, coins, cards, random walks, gambler’s-ruin duels) and five numeric answers, and the instructions tell you to “select the answer that is closest” — sometimes the exact answer is deliberately not on the grid.
The clock is the real difficulty: a strict 90 seconds per question, no navigating back, and if the timer expires the question is skipped automatically even if you had an answer selected but not submitted.
Scoring & strategy
+1 for a correct answer, −1 for a wrong one, 0 for a skip. Optiver’s own instructions say guessing is not recommended — and the math agrees: a blind guess across 5 options has EV −0.6. Skip unless your shortlist is down to two.
Watch for the recurring traps in the real sets: the martingale question (a $63 bankroll doubling strategy has expected profit exactly $0), the divergent-expectation items (“children until equal boys and girls” has an infinite expected value), and the closest-option items where the true answer (e.g. 24.5) sits between grid points.
Rebuilt from 2026/27 candidate-reported assessments for practice. QuantVault is not affiliated with Optiver; formats rotate between cycles.
FAQ
What is the Optiver Beat the Odds test?
It is the probability module of Optiver’s online assessment for quant trader and researcher roles: 30 multiple-choice probability questions with a strict 90-second limit per question, scored +1 for correct, −1 for incorrect and 0 for skipped.
How is Beat the Odds scored?
Each correct answer is +1, each wrong answer is −1, and a skip is 0. Because a blind guess across five options loses points on average, skipping is a deliberate strategy — the real instructions recommend it when you are uncertain.
Are these the real Optiver questions?
The three sets replicate questions reported by 2026/27 candidates, with the original wording and answer options. Optiver rotates its pools, so treat them as the exact format and the recurring question families rather than a guaranteed preview.
Is this practice test free?
Yes — all three full 30-question sets and the 2-question sample run free in the browser with no signup.