The Unvarnished Truth: What an Investment Banking Intern Actually Does All Day

If you search for "a day in the life of an investment banking intern," you will likely find glossy brochures or vague descriptions of "financial modeling" and "client meetings." The reality is far more rigorous, deeply operational, and distinctly unglamorous.

Your summer internship is not a casual summer job; it is a high-stakes, ten-week audition for a full-time offer. Because investment banks typically fill roughly 90% of their full-time analyst positions from their intern pool, you are competing for your seat from day one.

If you want to convert that internship into a full-time offer, you need to understand exactly what the day-to-day rhythm looks like. Here is the unvarnished breakdown of a typical day in the life of an IB intern.

The Morning: Setting the Pace (7:45 AM – 12:00 PM)

7:45 AM — The Early Start

Punctuality and presence are your first daily tests. Aim to arrive by 7:45 a.m. so you are settled at your desk and ready to work by 8:00 a.m.

8:00 AM — You'll Be the First One In

Proactive Learning: If you cleared your tasks the night before and your inbox is empty, do not just sit there. Dive into financial news, read up on recently announced transactions in your group's sector, or research company news relevant to your firm's clients. This demonstrates vital initiative.

Morning Assignments

Eventually, a first-year analyst will assign you your initial tasks for the day. When work lands on your desk, your mantra must be: speed and precision.

The Afternoon: The Core Loop and "Facetime" (12:00 PM – 5:00 PM)

Functional Lunches

Lunch is rarely a prolonged social event. Most days involve picking up something from a quick-service spot and returning to your desk to eat while continuing to monitor emails or work.

Turning Comments

A core part of your day involves "turning comments"—rapidly incorporating edits and revisions from your analysts. Your ability to turn these comments around rapidly, with meticulous attention to every detail, is critical.

The Reality of Facetime

An inevitable part of the intern day is the "facetime" phenomenon. There will be slow periods where you might feel the need to remain visible. Do not stress if you find yourself with downtime; if you have made your availability known, temporary lulls are just a natural part of the client-driven banking lifecycle.

The Muck: Essential Support and "Grunt Work"

You likely won't be building complex LBO models from scratch in your first week. Instead, you will be tasked with essential support functions.

Live Deal Support

On live deals, you will provide essential support to the primary analysts. This involves tasks colloquially termed "grunt work"—printing and binding pitchbooks, conducting data dives, incorporating text edits, or updating capitalization tables.

Internal Contributions

You will also be tasked with maintaining internal databases for comparable companies (comps) or precedent transactions.

The Unofficial Duties

One of the most common tasks that falls to interns is coordinating and ordering dinner for everyone working late. Your role is often to do whatever makes the full-time team members' lives easier.

"Embrace the grunt work. Every pitchbook you bind and every dinner order you coordinate is another data point your team is collecting on your attitude—and attitude converts offers."

The Evening: Dinner, Dedication, and Departure (5:00 PM – Late)

Team Dinner

Dinner orders usually go in around 5:00 p.m., with food arriving by 6:30 p.m. The typical budget is around $30, which can feel like a significant perk to a college student.

Late Hours

Even if your specific tasks are complete, the expectation is generally that you will remain at your desk until around 11:00 p.m., or until the last analyst directly working with you has left.

The Golden Rule of Leaving

If an analyst is still there when you're considering leaving, always ask if they need any last-minute assistance. An intern departing before an analyst they support, without checking in, is a significant misstep.

How to Secure the Return Offer

Surviving the hours is only half the battle. To secure the return offer, you must master the intangibles:

1Never Spin Your Wheels

Apply logical reasoning before asking for help, but do not get stuck on a task for hours heading in the wrong direction. If you are genuinely stuck, follow the "food chain" and ask a fellow intern or a first-year analyst.

2Over-Communicate

When juggling multiple projects, you must accept them all. However, it is crucial to communicate your existing workload to each person assigning tasks so you can collaboratively set realistic timelines.

3Maintain an Unbeatable Attitude

Show genuine passion for the work, even the mundane tasks. A can-do, positive demeanor goes a long way in an inherently stressful environment.

The internship will fly by in what feels like an instant. Treat every single day like an interview, embrace the grunt work, and leave absolutely nothing in the tank.

— Brett Robinson, Managing Director