Antitrust Practice in BigLaw: Beyond the Basics

If you have taken or plan to take antitrust in law school, you already know the basic framework: Sherman Act, Clayton Act, FTC Act, per se vs. rule of reason. What you probably do not know is what antitrust associates at BigLaw firms actually spend their days doing.

Antitrust is having a moment. Aggressive enforcement from the DOJ and FTC, increased scrutiny of tech mergers, and a political environment where both parties seem to agree that big companies need more oversight, all of this means more work, more litigation, and more demand for antitrust lawyers.

The Three Pillars of Antitrust Practice

Merger Review

This is the bread and butter. When two companies want to merge and the deal is large enough to trigger HSR filing requirements, they need antitrust counsel to navigate the review process with the DOJ or FTC.

As a junior associate, you will spend a lot of time on HSR filings, which sounds simple but involves gathering enormous amounts of data about the merging companies' competitive overlaps. You will draft white papers explaining why the deal does not harm competition. If the agency issues a Second Request (essentially a deep-dive investigation), you are looking at months of document review, economic analysis, and advocacy.

The work accelerates if the government decides to challenge the deal. Then it becomes full-blown litigation, preliminary injunction hearings, expert testimony on market definition, and intense negotiations over potential divestitures or remedies.

Civil Litigation

Antitrust litigation outside the merger context involves price-fixing cases, monopolization claims, and class actions. These cases are document-heavy and expert-driven. You will work closely with economists who build models to prove or disprove market power and competitive harm.

As a junior, expect significant document review and deposition preparation. But antitrust litigation moves faster than many other types of complex commercial litigation, and the substantive issues are genuinely interesting if you like economics.

Cartel Investigations

When the DOJ's Antitrust Division suspects a cartel, companies secretly agreeing to fix prices, rig bids, or allocate markets, the investigation is criminal. People go to prison for antitrust violations. This means the work has an urgency and seriousness that other corporate practices lack.

If your firm is representing a company under investigation, you will be reviewing communications, interviewing employees, and potentially negotiating a plea agreement or leniency application. The DOJ's leniency program means the first company to report a cartel can avoid criminal prosecution, which creates enormous pressure to move fast.

Which Firms Lead

Cravath has one of the most prestigious antitrust practices, particularly on the litigation and merger review side. Cleary Gottlieb is dominant in international antitrust and has deep relationships with European competition authorities. Gibson Dunn is a powerhouse in antitrust litigation.

On the boutique side, Axinn, Veltrop & Harkrider punches well above its size in merger review. Several former senior DOJ officials have landed at firms like Paul, Weiss and Arnold & Porter, bringing enforcement expertise.

The Economics Factor

Antitrust is the most economics-heavy practice in BigLaw. You do not need an economics degree, but you need to be comfortable working with economic concepts, market definition, barriers to entry, competitive effects, price elasticity. If your eyes glaze over at the word "econometrics," this practice area might not be for you.

The upside is that the intellectual rigor makes antitrust one of the more interesting areas of law to practice. The cases involve real markets, real companies, and real competitive dynamics. You are not just drafting contracts, you are analyzing whether a merger will raise prices for millions of consumers.

Hours and Career Trajectory

Antitrust hours vary. Merger review work is deal-driven and can be intense during active reviews. Litigation work follows a more typical litigation cadence, busy around discovery deadlines and trial, slower in between.

Career options after antitrust are strong. The DOJ and FTC actively recruit from BigLaw antitrust practices, and the revolving door works in both directions. State attorneys general offices also hire antitrust lawyers. In-house, most large companies have antitrust compliance needs, particularly in tech, healthcare, and financial services.

Who Should Consider This

If you like economics, enjoy complex analytical problems, and want a practice area where the work is intellectually demanding from day one, antitrust is one of the best options in BigLaw. It is also one of the few areas where you can work on matters with genuine public interest implications while still earning BigLaw money.