Optiver online assessment practice

Separate timed links: Beat the Odds (probability), a sequences test and Zap-N cognitive games. Some offices add the other modules below.

Free, timed practice that matches the reported format, with a worked solution for every question and a projected score for the real test. No signup: your history stays in your browser.

Reported format

• Beat the Odds

  30 questions25 minutesMultiple choiceWrong answer -1
  Practice this section

• NumberLogic

  26 questions25 minutesTyped answersWrong answer -1
  Practice this section

• Likelihood-list

  30 questions25 minutesTyped answersWrong answer -1
  Practice this section

• Intervals

  18 questions15 minutesTyped answersScored by range width
  Practice this section

• Orderbooks

  20 questions8 minutesTyped answersWrong answer -1
  Practice this section

What candidates report

• No calculator reported.
• Beat the Odds: five options, pick the closest. One 2026 report says about 90 seconds a question; this uses 30 questions in 25 minutes (50 seconds each).
• Later rounds: market-making games with cards or dice.

How to prepare

• How to solve Beat the Odds questions
• How to solve NumberLogic questions
• How to solve Likelihood-list questions
• How to solve Intervals questions
• How to solve Orderbooks questions
• Market-making game
• How the projected score works

Other firms

Flow Traders · Akuna Capital · Da Vinci · SIG · IMC · Citadel Securities · DRW · Five Rings · Jane Street

Formats come from candidate reports and prep sites, not from Optiver, and they change by year, office and role. Check your own invitation. Sources: Glassdoor (2026 reports).