All Options Interview Guide

The first round at All Options challenges you with a series of online tests. The tests you take depend on the role you apply for:

Graduate Trader

1. Math test
2. Sequences test

Junior Quant Trader

1. Sequences test
2. Probability test
3. Coding assignment

See below for a small breakdown of the different tests.

Math Test

This test consists of 80 rapid-fire arithmetic questions to be completed in 8 minutes. The test evaluates your ability to perform mental calculations quickly and accurately. Calculators and scratch paper are not allowed.

The test is essentially based on the famous Optiver 80 in 8 test so you can use our Orange Test to practice.

Focus Areas

• Addition, subtraction, multiplication, and division with integers and decimals
• Estimations and rounding

Tips

• Practice mental math daily using our tools
• Employ shortcuts like rounding and estimating to save time
• Recognize common decimal and fraction conversions quickly
• Stay calm under pressure and maintain a steady pace

Sequences Test

In this test, you will face 26 sequence-based questions to complete in 5 minutes. You must identify the logic behind a given number series and predict the next value.

This test is essentially the same as the Optiver Sequences Test, so you can use our Orange Sequences Test to prepare.

Focus Areas

• Arithmetic and geometric sequences
• Alternating or compound patterns

Tips

• Drill typical sequence types such as Fibonacci, square/cube patterns, alternating increases
• Learn to identify when a question is too time-consuming and make a quick educated guess
• Familiarize yourself with time-limited test environments

Probability Test

This test consists of 10 questions, each with a 180-second time limit. Scoring includes penalties for incorrect answers, so accuracy is key. Leverage our question database and filter for All Options to practice for this test.

Scoring Rules

• +1 for correct
• -1 for incorrect
• 0 for skipped or timed-out questions

Focus Areas

• Dice, cards, and coin problems
• Logic-based probability and estimation

Tips

• Avoid guessing if unsure
• Understand how combinations and permutations work
• Practice using realistic mock exams under timed conditions like our Orange Probability Test and Brown Probability Test.

Coding Assignment

The coding assessment is required only for Junior Quant Trader applicants and comes after the online tests.

Focus Areas

• Basic algorithm problems
• Python proficiency is beneficial

Tips

• Refresh your knowledge on loops, conditionals, lists, and dictionaries
• Solve coding challenges on platforms like LeetCode, HackerRank
• Prioritize readability and efficiency in your code

Once you pass the assessments, you’ll have an HR interview focused on cultural fit, motivation, and basic understanding of trading.

Format

• 30–45 minute phone or video call

Common Topics

• Why do you want to be a trader?
• Why All Options specifically?
• What is a market maker?
• What are call and put options?
• Do you follow the markets?

Preparation Tips

• Prepare a clear and authentic story explaining your interest in trading
• Be honest if you are interviewing elsewhere
• Be aware of All Options’ pivot toward quantitative trading since 2019
• Be familiar with financial headlines, especially related to options markets
• Show a proactive, entrepreneurial attitude

This stage evaluates your trading knowledge, problem-solving, and decision-making under pressure. You will typically speak with one or two traders.

Format

• 45–60 minutes
• Conducted via video or in person

Topics

• Mental math challenges 
• Market making simulations (e.g., quoting bid/ask for a mystery value)
• Brain teasers (e.g., classic puzzles, logic or estimation problems)
• Options theory questions (Greeks, arbitrage, implied volatility)

Examples of some common questions

• What happens to delta as the stock price rises?
• How would you hedge a long put position?
• If a coin is flipped 10 times, what’s the chance of exactly 4 heads?

Preparation Tips

• Think out loud to show your reasoning
• Keep calm under pressure and avoid panicking when challenged
• Review relevant core finance concepts and probability theory 
• Practice brainteasers and market-making scenarios

This round combines previous elements into a full-day or extended-session experience. You meet multiple team members, including senior staff.

Format

• Onsite or long video call if you are not close to the Netherlands
• Mix of technical, cultural, and scenario interviews with small breaks inbetween

Topics

• Re-evaluation of technical and fit qualities
• In-depth trading or options strategy scenarios
• Open-ended questions such as “Describe a trading strategy you find interesting” or “What would you do in this market situation?”
• Informal chats to gauge your personality and cultural compatibility

Example Scenarios

• How would you approach market making in a thinly traded stock option?
• What risks would you watch out for if quoting a large trade?

Preparation Tips

• Revisit all prior rounds and polish previous answers
• Maintain energy and consistency throughout the day
• Ask thoughtful questions about training, culture, and expectations
• Treat this round as mutual evaluation, you are also assessing if this is the right fit for you

All Options' interview process is structured and transparent. It emphasizes speed, fundamentals, and mindset. Candidates who succeed demonstrate not just raw ability, but also preparation, curiosity, and motivation for trading. With the right practice and preparation, you will be able to confidently navigate each stage of the process.