Could low prices be a secret weapon to kill competitors?
Under U.S. antitrust law, predatory pricing claims are rare and hard to prove.
Courts apply a strict two-part test: a below-cost showing tied to a proper cost measure, and proof of a realistic chance to recoup losses through later monopoly pricing.
This intro lays out the legal standards, key cases, and enforcement trends so businesses, lawyers, and policymakers know what evidence courts want and what steps to take next.

Core Legal Framework Governing Predatory Pricing in Antitrust Law

Predatory pricing claims come up under Section 2 of the Sherman Antitrust Act of 1890, which bans monopolization and attempts at it. The U.S. Supreme Court defines predatory pricing as pricing “below an appropriate measure of cost for the purpose of eliminating competitors in the short run and reducing competition in the long run” (Cargill, 479 U.S. 104, 117 (1986)). That definition captures what’s actually happening here: a company takes short-term losses to push rivals out, then recoups by charging monopoly prices once the competition’s gone.

The controlling legal test comes from Brooke Group v. Brown & Williamson, 509 U.S. 209 (1993), which set up a two-part framework that all predatory pricing plaintiffs have to meet. First, you’ve got to prove the defendant priced below an appropriate measure of its own costs. Second, you need to show a “dangerous probability” that the defendant will recoup its investment in below-cost pricing through later monopoly profits (Brooke Group, 509 U.S. at 222–224). Both elements are required. Fail on either one and the claim dies.

Courts don’t like predatory pricing allegations. As the Supreme Court put it in Matsushita Electric Industrial Co. v. Zenith Radio Corp., 475 U.S. 574, 589 (1986), predatory pricing schemes are “rarely tried, and even more rarely successful.” This caution reflects a policy worry: aggressive price competition helps consumers, and courts don’t want to chill legitimate competitive behavior by letting weak predatory pricing claims move forward.

The basic legal pieces of a predatory pricing claim are:

• Statutory basis under Sherman Act Section 2 (monopolization or attempt to monopolize)
• Pricing below an appropriate measure of the defendant’s costs
• Dangerous probability the defendant can recoup losses through future monopoly pricing
• Proof of actual or threatened monopoly power in the relevant market
• Showing that the below-cost pricing could exclude rivals and reduce competition

Predatory Pricing and the Below-Cost Pricing Requirement Under Antitrust Law

The first prong of the Brooke Group test asks plaintiffs to prove the defendant’s prices fell below an appropriate measure of cost. Brooke Group deliberately left “appropriate measure” undefined (509 U.S. at 222), so courts and litigants rely on economic theory and expert testimony. The most accepted benchmarks come from legal scholars Areeda & Turner (1975), who argued courts should use marginal cost or, as a practical substitute, average variable cost (AVC). Marginal cost is the cost of making one more unit. AVC includes all costs that change with output (raw materials, direct labor, similar stuff) but leaves out fixed overhead.

Courts applying these measures look at whether the defendant’s price covered the incremental cost of production. In Stearns Airport Equipment Co. v. FMC Corp., 170 F.3d 518 (5th Cir. 1999), the Fifth Circuit used average variable cost analysis to evaluate whether pricing was predatory. Plaintiffs often fail this element when they just claim prices were “low,” “below competitors’ prices,” or “underpriced relative to value” without connecting those prices to the defendant’s actual cost structure. Those kinds of claims get treated as conclusory and insufficient (BanxCorp v. Bankrate, Inc., 2019 U.S. Dist. LEXIS 48118, 21–22 (D.N.J. Mar. 21, 2019)).

Recoupment Requirements in Predatory Pricing Antitrust Claims

The second prong of the Brooke Group test (recoupment) is usually the hardest element for plaintiffs. Recoupment analysis is itself a two-part question. First, you’ve got to show the alleged predation could drive rivals from the market. That depends on how long and how deep the below-cost pricing went, the financial strength of the predator compared to its targets, and the competitive incentives and behavior of everyone in the market (Brooke Group, 509 U.S. at 225). Second, you need to show that post-exit market conditions will let the defendant raise prices to supra-competitive levels and keep them there long enough to recover the losses from the predatory campaign (Brooke Group, 509 U.S. at 226). This needs evidence of high barriers to entry, network effects, customer switching costs, or other structural features that stop new or remaining competitors from limiting the predator’s pricing power.

Courts scrutinize recoupment closely because successful predation isn’t just about forcing rivals out. You also have to maintain monopoly power long enough to offset the losses. In SC Innovations (Sidecar) v. Uber Technologies, Inc., 2020 U.S. Dist. LEXIS 77397, *30–31 (May 1, 2020), the plaintiff survived a motion to dismiss by claiming Uber charged below-cost fares and paid drivers commissions exceeding revenues, with a plausible plan to recoup by later raising rider prices and cutting driver payouts. The court found recoupment allegations plausible given Uber’s alleged high entry barriers, strong network effects, and dominant market position.

But many predatory pricing claims fail because plaintiffs can’t identify a credible recoupment mechanism. Courts want concrete factual claims showing how market structure, regulatory constraints, and competitive dynamics will allow sustained monopoly pricing. Vague statements that the defendant “intends to raise prices later” or “will monopolize the market” aren’t enough.

Courts evaluate recoupment using factors like:

• How long and how much below-cost pricing it takes to force rivals to exit
• Financial capacity of the alleged predator to sustain prolonged losses
• Relative financial strength and resilience of targeted competitors
• Presence of structural barriers to entry (capital requirements, regulatory licenses, technology)
• Network effects, switching costs, or other features that lock in customers after rivals exit
• Evidence of post-predation pricing power and absence of competitive constraints

Market Power, Exclusionary Conduct, and Antitrust Analysis of Predatory Pricing

Predatory pricing is a form of exclusionary conduct under Section 2 of the Sherman Act. That means plaintiffs have to prove the defendant had or had a dangerous probability of getting monopoly power in a properly defined relevant market. Market power is the ability to raise prices above competitive levels without losing so many customers that the increase becomes unprofitable. Courts define relevant markets by analyzing product substitutability and geographic reach, then assess the defendant’s share and the market’s competitive dynamics.

Modern antitrust doctrine, influenced by the consumer welfare standard from Reiter v. Sonotone Corp., emphasizes harm to consumers through reduced output and higher prices, not just harm to individual competitors. Intent evidence (internal pricing memos describing plans to “squeeze out” rivals, benchmarking documents, strategic plans targeting specific competitors) can support a claim but isn’t dispositive. Courts need intent to line up with objective economic evidence: pricing below cost and a realistic prospect of recoupment. This focus on consumer harm and rigorous economic proof shows judicial reluctance to condemn aggressive price competition, which helps buyers in the short run even if done for exclusionary reasons.

Evidence used to infer market power or exclusionary intent includes:

• Market share data and concentration metrics (HHI scores, four-firm ratios)
• Internal documents or executive communications describing plans to eliminate rivals
• Financial analyses showing the defendant’s capacity to sustain losses and fund below-cost campaigns
• Evidence of strategic timing (pricing cuts matching a rival’s market entry or expansion)
• Post-predation pricing behavior and margin increases after rivals exit

Antitrust Case Law Shaping Predatory Pricing Enforcement

Clean Water Opportunities v. Willamette

In Clean Water Opportunities, Inc. v. Willamette Valley Co., 759 Fed. Appx. 244 (5th Cir. 2019), the Fifth Circuit affirmed dismissal of a predatory pricing claim on a motion to dismiss because the plaintiff’s claims were conclusory and implausible. The plaintiff said the defendant offered discounts that were “substantial and below cost” but didn’t plead any specific cost measure, cite cost accounting data, or give factual details that would make the below-cost claim plausible (759 Fed. Appx. at *247). The court said just labeling discounts as “below cost” without supporting factual content didn’t meet the heightened pleading standard for antitrust claims. This decision shows plaintiffs can’t just recite the elements of a claim. They need to plead facts enough to raise a reasonable expectation that discovery will reveal evidence of each element.

BanxCorp v. Bankrate

BanxCorp v. Bankrate, Inc., 2019 U.S. Dist. LEXIS 48118 (D.N.J. Mar. 21, 2019), ended in summary judgment for the defendant when the plaintiff claimed only that the defendant’s prices were “underpriced relative to value” or below competitors’ average prices. The court said this framing was legally insufficient because predatory pricing requires proof the defendant priced below its own costs, not below some other benchmark like market value or rivals’ pricing (opinion at 21–22). The plaintiff presented no evidence tying the defendant’s prices to average variable cost, marginal cost, or any other appropriate cost measure tied to the defendant’s operations. This case shows comparative pricing evidence alone (showing a defendant undercut competitors) doesn’t establish predatory pricing without a direct cost-price comparison.

SC Innovations v. Uber Technologies

SC Innovations (Sidecar) v. Uber Technologies, Inc., 2020 U.S. Dist. LEXIS 77397 (May 1, 2020), stands as a rare example of a predatory pricing claim surviving early dismissal. Sidecar claimed Uber charged riders below-cost fares while paying drivers commissions exceeding fare revenues, effectively subsidizing rides to drive Sidecar and other competitors from the market. The complaint included detailed claims about Uber’s cost structure, the magnitude and duration of losses, and a plausible recoupment strategy: once rivals exited, Uber would raise rider prices and reduce driver commission rates, exploiting high barriers to entry and powerful network effects that lock in both riders and drivers (opinion at *30–31). The court found these claims sufficiently detailed and economically coherent to proceed past the pleading stage, noting that network effects and switching costs created a plausible path to recoupment.

Antitrust Remedies and Potential Liability for Predatory Pricing

Plaintiffs who successfully prove predatory pricing under Section 2 of the Sherman Act can pursue several forms of relief. Injunctive relief is common in predatory pricing cases because the primary goal is often stopping ongoing exclusionary conduct before rivals get forced from the market. Courts can order the defendant to stop below-cost pricing, implement compliance monitoring, or take affirmative steps to restore competitive conditions. Damages are also available: private plaintiffs can recover treble damages under federal antitrust law, calculated based on lost profits, market share erosion, or reduced firm value caused by the predation. Damages models often need complex economic testimony to separate harm caused by predation from harm caused by legitimate competition or other market forces.

State-level below-cost pricing statutes, like the Florida Motor Fuel Marketing Practices Act or the Alabama Motor Fuel Marketing Act, provide additional remedies including civil penalties, declaratory relief, and actual damages without the treble multiplier. In Sun Gas Marketing & Petroleum LLC v. BJ’s Wholesale Club Inc. (filed late November 2019), the plaintiff sought injunctive relief and damages under Florida law, claiming BJ’s sold motor fuel “well below cost” for months to injure competitors. While the trial court granted summary judgment for the defendant on statutory interpretation grounds, the case shows state enforcement can run parallel to federal claims and may have different procedural paths and remedies.

Criminal prosecution for predatory pricing is rare and typically comes up only when below-cost pricing overlaps with price-fixing conspiracies or other Sherman Act Section 1 violations. In pure predatory pricing cases under Section 2, enforcement is civil. Federal and state enforcement agencies can also seek civil penalties, consent decrees, or structural relief like divestiture in monopolization cases where predatory pricing is part of a broader exclusionary strategy.

Available remedies in predatory pricing cases include:

1. Injunctive relief ordering cessation of below-cost pricing and ongoing compliance monitoring
2. Treble damages for private plaintiffs under federal law (actual damages × 3)
3. Civil penalties and single damages under state below-cost pricing statutes
4. Declaratory relief establishing the legality or illegality of pricing practices

International and Comparative Approaches to Predatory Pricing Law

European Union competition law takes a more hands-on approach to predatory pricing than the United States. Under Article 102 of the Treaty on the Functioning of the European Union (TFEU), any abuse of a dominant position is banned, and below-cost pricing by a dominant firm can be abuse without needing the same rigorous proof of recoupment demanded by U.S. courts. The European Commission and EU courts apply cost benchmarks similar to those in U.S. law (average variable cost and average total cost) but the legal framework presumes harm when a dominant firm prices below AVC. Pricing between AVC and ATC can also be abusive if the firm can’t show objective justification or if exclusionary intent is evident. The Commission’s approach focuses on protecting the competitive process and smaller rivals, not just on showing consumer harm through recoupment.

The United Kingdom, post-Brexit, continues applying principles mostly aligned with EU law through the Competition Act 1998, which mirrors Article 102. UK enforcement authorities look at cost tests and dominance but also consider market structure and the likelihood of exclusion. EU and UK enforcers have brought predatory pricing cases more often than their U.S. counterparts, particularly against large firms in telecommunications, transport, and digital platforms. This reflects different policy priorities: European systems emphasize fairness and market structure. U.S. law emphasizes consumer welfare and economic efficiency.

Compliance Strategies to Avoid Predatory Pricing Antitrust Risk

Businesses operating in competitive markets (especially those with significant market share or facing antitrust scrutiny) should put compliance programs in place to reduce predatory pricing risk. The foundation of any compliance effort is contemporaneous cost documentation. Companies need to keep detailed, product-level cost accounting that tracks average variable cost, fixed overhead allocation, and marginal cost in real time. When pricing decisions get made, those decisions should be documented with supporting cost analyses showing prices meet or exceed appropriate cost benchmarks. Internal pricing memos should skip language suggesting intent to exclude rivals or “drive competitors out.” Focus instead on legitimate business justifications like inventory clearance, promotional strategies, or meeting competitive offers.

Retailers subject to state-level below-cost pricing statutes (particularly those selling motor fuel, dairy, alcohol, tobacco, or eggs) face additional exposure. The Oasis Travel Center LLC v. Buc-ee’s case (early 2019) involved claims that Buc-ee’s sold gasoline in Alabama at less than $2.00 per gallon in violation of the Alabama Motor Fuel Marketing Act. State statutes vary widely in their cost definitions, covered products, and enforcement mechanisms, so multi-state operators should conduct jurisdiction-specific risk assessments and tailor compliance programs accordingly. Pandemic-era market conditions have heightened enforcement risk, as many small competitors have been weakened and are more vulnerable to exclusionary pricing campaigns.

Practical compliance steps to reduce predatory pricing risk:

1. Maintain real-time cost accounting at the product and SKU level, with clear documentation of variable and fixed cost components
2. Require written justification and management approval for any pricing below average variable cost, supported by legitimate business rationales
3. Train sales, marketing, and pricing teams on antitrust risks and the importance of avoiding exclusionary language in internal communications
4. Conduct periodic legal and economic reviews of pricing strategies, especially during promotions, market entry, or competitive response campaigns
5. Preserve contemporaneous records of competitor pricing, market conditions, and strategic objectives to support any future litigation defense
6. Establish a cross-functional antitrust compliance committee to review high-risk pricing decisions and coordinate with legal counsel before implementation

Final Words

In the action, this article defined predatory pricing, set out the Brooke Group two-part test, explained below-cost benchmarks like AVC, and dug into recoupment, market power, leading cases, remedies, international contrasts, and practical compliance steps.

It showed why courts are skeptical, why recoupment is usually the hardest element to prove, and what evidence helps a claim survive.

Keep documentation, training, and periodic reviews current—those steps help teams stay compliant with predatory pricing antitrust law and avoid costly disputes.

FAQ

Q: What is predatory pricing under U.S. antitrust law?

A: Predatory pricing is pricing below an appropriate measure of cost aimed at driving competitors out short-term and reducing competition long-term, as courts describe when evaluating exclusionary conduct.

Q: Which statute governs predatory pricing claims?

A: Sherman Act Section 2 governs predatory pricing claims, addressing monopolization and attempts to monopolize through exclusionary conduct like below-cost pricing intended to harm rivals.

Q: What is the legal standard from Brooke Group v. Brown & Williamson?

A: The Brooke Group test requires proof that (1) prices were below an appropriate measure of cost and (2) there was a dangerous probability the defendant could recoup losses later.

Q: How do courts determine whether prices are “below cost”?

A: Courts typically use average variable cost or marginal cost benchmarks; Brooke Group left “appropriate measure” open, so plaintiffs should tie alleged prices to a specific cost standard.

Q: What must plaintiffs show to prove likely recoupment?

A: Plaintiffs must show the defendant can both eliminate rivals and later raise prices—using evidence on market structure, duration of losses, financial strength, barriers to entry, and network effects.

Q: Why are predatory pricing claims rarely successful?

A: Predatory pricing claims are rare because courts are skeptical, demanding strong economic proof and plausible recoupment, making successful pleading and proof difficult in most markets.

Q: What evidence tends to show market power or exclusionary intent?

A: Evidence includes internal pricing memos, strategic plans, sustained below-cost losses correlated with exclusionary goals, market-share data, and structural barriers that enable long-term dominance.

Q: What remedies are available for predatory pricing violations?

A: Remedies can include injunctive relief, actual damages, disgorgement or lost-profit awards, civil penalties, and state-law claims; criminal enforcement is uncommon and fact-specific.

Q: How do U.S. and EU approaches to predatory pricing differ?

A: The U.S. requires proof of recoupment and is more skeptical; the EU treats below-cost pricing by dominant firms as abusive without the same recoupment requirement, applying Article 102 TFEU.

Q: What practical steps should companies take to avoid predatory pricing risk?

A: Companies should keep contemporaneous cost records, adopt clear pricing policies, run antitrust risk assessments, train sales teams, document pricing decisions, and monitor relevant state laws.