Old Mission Research Analyst interview questions & guide 2026

The interview process at Old Mission is designed to assess your analytical intuition, your ability to handle ambiguity, and your alignment with the firm’s collaborative culture. The following categories represent the core pillars of the evaluation process.

Quantitative Reasoning and Estimation

These questions test your ability to break down complex, real-world problems into logical steps when precise data is unavailable.

• Estimate the number of windows on the Willis Tower.
• How would you estimate the total annual revenue of a local coffee shop?

Preparation for Old Mission should focus on building a robust mental framework rather than memorizing rote answers. You are being evaluated on your thought process, not just your final output.

Analytical Rigor – This is the foundation of your performance. Interviewers want to see how you structure your logic when faced with Fermi-style estimation problems. Practice breaking large, abstract numbers into smaller, manageable components.

Market Intuition – You must demonstrate a deep interest in financial markets. Be prepared to discuss specific economic concepts and show an understanding of the factors that influence stock price volatility.

Cultural Alignment – Old Mission places a high premium on candidates who are intellectually curious and humble. You should be able to articulate why you are drawn to the firm’s specific culture and how your personal values align with their collaborative approach.

The interview process at Old Mission is structured to be thorough yet supportive. Candidates typically move through a series of stages that test both technical aptitude and personality fit. You can expect a mix of high-level behavioral screens and more granular, case-based assessments. The firm prides itself on maintaining a professional and approachable demeanor throughout, even during challenging technical rounds.

This visual timeline illustrates the typical progression from your initial recruiter screening to the final onsite or virtual panel interviews. Use this to pace your study schedule, ensuring you have enough time to brush up on both your economic foundations and your ability to articulate your thought process for case studies.

Technical and Economic Foundations

This area is essential for ensuring you have the baseline knowledge to contribute to the desk. You will be evaluated on your grasp of market mechanics and economic theory.

Be ready to go over:

• Stock Price Drivers – Factors influencing volatility and price movement.
• Economic Principles – Understanding supply/demand dynamics and market efficiency.

As a Research Analyst, you are responsible for monitoring market data and identifying patterns that inform trading strategies. You will work closely with traders and developers to ensure that the data models used by the firm remain accurate and responsive to changing market conditions.

Your day-to-day will involve:

• Conducting deep-dive research into specific market segments or asset classes.
• Developing and maintaining internal tools for data analysis and visualization.
• Communicating findings to the broader team to support daily trading decisions.
• Collaborating with cross-functional partners to refine existing strategies and troubleshoot discrepancies in market data.

A strong candidate for Old Mission is someone who possesses both the technical capacity to handle data and the communication skills to translate that data into strategy.

• Must-have skills: Strong grasp of probability, statistical intuition, and a genuine interest in market dynamics. You must be able to think clearly under pressure and explain your logic to others.
• Nice-to-have skills: Prior experience with Python or similar programming languages for data analysis is highly beneficial. Familiarity with financial markets or trading operations will give you a significant advantage.
• Soft skills: Intellectual honesty is paramount. You must be comfortable admitting when you do not know an answer and focus instead on how you would find the solution.

Q: How difficult are the interviews? The interviews are considered average in difficulty, focusing more on your ability to think on your feet than on obscure academic trivia. Expect a rigorous but fair evaluation of your logic.

Q: How long is the interview process? The process typically involves a recruiter screen, a technical round with team members, a take-home case study, and a final interview round. Expect the process to take several weeks.

Q: Is there a specific background required? While a background in finance or economics is helpful, Old Mission values strong analytical thinkers from various quantitative disciplines. The ability to demonstrate logical problem-solving is more important than your specific major.

• Think Aloud: Always verbalize your thought process during estimation tasks. Silence makes it impossible for the interviewer to evaluate your logic.
• Be Concise: When answering behavioral questions, structure your responses using the STAR method (Situation, Task, Action, Result) to keep your points clear and impactful.
• Show Genuine Curiosity: Ask insightful questions about the firm’s strategy and the challenges the team is currently facing. This demonstrates that you are truly invested in the role.

The Research Analyst role at Old Mission offers a unique opportunity to apply your analytical talents within a sophisticated and collaborative trading environment. By focusing on your logical problem-solving skills, deepening your market intuition, and preparing to discuss your thought process clearly, you will be well-positioned to succeed in your interviews. You can explore additional interview insights, practice questions, and preparation resources on Dataford.

The compensation data provided above reflects typical market ranges for analysts in this sector. You should interpret these figures as a baseline; final offers are influenced by your level of experience, specific technical expertise, and the overall competitive landscape for quantitative talent in Chicago.