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To succeed as an intern, preparation and execution are key. Here's a comprehensive guide based on the most helpful WSO content:

Before the Internship

  1. Master Excel and PowerPoint: These tools are your bread and butter. Learn shortcuts and formatting techniques to save time and improve efficiency.
  2. Learn Financial Modeling: If you're in finance, consider going through Wall Street Prep or similar courses to build a strong foundation.
  3. Understand Industry Basics: Read relevant blogs, reports, or books like The Intelligent Investor or You Can Be a Stock Market Genius to familiarize yourself with key concepts.
  4. Practice Attention to Detail: Start building this habit now. Double-check your work for errors and inconsistencies.
  5. Prepare Mentally: Know that the job isn't technically hard but requires grit, adaptability, and emotional intelligence. Be ready for long hours and constructive criticism.
  6. Plan Your Wardrobe: Have enough professional attire (e.g., suits, shirts, ties) to last the week, plus extras for emergencies.

During the Internship

  1. Be Organized and Efficient:
    • Take notes quickly and in an organized manner.
    • Manage your workflows effectively to meet deadlines.
  2. Triple-Check Your Work:
    • Recheck everything before submission to catch mistakes and improve quality.
    • Always source your numbers and avoid hard-coding without proper references.
  3. Communicate Effectively:
    • Confirm deadlines and expectations with your team.
    • If you're stuck, spend 30-60 minutes trying to solve the problem, then ask for help while explaining what you've already tried.
  4. Be Proactive:
    • Anticipate what’s next and take initiative to complete tasks without being asked.
    • If you have an idea to improve a process, draft a proposal and be open to feedback.
  5. Maintain a Positive Attitude:
    • Stay intellectually curious and genuinely interested in your work.
    • Avoid showing displeasure, even during tough times.
  6. Build Relationships:
    • Network with your team and other interns. Strong relationships can lead to mentorship and future opportunities.
  7. Adapt and Learn Quickly:
    • Familiarize yourself with your firm’s file management system and other tools.
    • Be open to feedback and use it to improve.

Key Habits of Top Performers

  • Under-Commit and Over-Deliver: Manage expectations and exceed them.
  • Be Solution-Oriented: Always think ahead and propose solutions rather than just presenting problems.
  • Stay Humble and Resilient: Accept criticism gracefully and use it to grow.

Final Thoughts

The internship is an exercise in grit, adaptability, and emotional intelligence. Focus on being detail-oriented, proactive, and a team player. Remember, no one expects you to be an expert, but they do expect you to be reliable, eager to learn, and a positive presence on the team.

Sources: How should I prepare to be a good intern?, Preparing for an IB internship, How to Thrive on Your Research Internship, How to Prepare for IB Summer Internship, How to kill it as an intern

I'm an AI bot trained on the most helpful WSO content across 17+ years.
 

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Career Advancement Opportunities

June 2026 Investment Banking

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