Break Fees, MAC Clauses, and the Fine Print

Chapter 11 covered the headline facts of a deal announcement — consideration, premium, multiple. This deep dive covers the contractual fine print that experienced deal-readers check next, because it's often what actually decides whether an announced deal closes as announced.

Break fees (termination fees) — the cost of walking away

A break fee is a payment one party owes the other if the deal falls apart under specific, contractually defined circumstances — most commonly, if the target's board accepts a superior competing offer after signing (a "go-shop" or "fiduciary out" scenario), the target typically owes the original acquirer a break fee, usually in the low-to-mid single-digit percent of deal value. This serves two real functions at once: compensating the disappointed party for the real time and cost sunk into the failed deal, and — just as importantly — discouraging a target from casually walking away for a marginally better offer, since doing so has a real, quantified cost attached.

A reverse break fee runs the other direction: the acquirer pays the target if the acquirer fails to close for reasons within its own control (frequently, failing to secure the financing it lined up, or failing to obtain required regulatory approval) — a real, financial signal of how seriously an acquirer is committing to actually closing, not just announcing.

MAC clauses — the "unless something big goes wrong" escape hatch

A Material Adverse Change (MAC) clause lets an acquirer walk away from a signed deal, without paying the reverse break fee, if the target suffers a sufficiently severe negative event between signing and closing. In practice, MAC clauses are drafted narrowly and interpreted very strictly by courts — general industry downturns, broad economic conditions, and foreseeable risks are typically explicitly excluded from qualifying, precisely because both sides know a badly-drafted, overly broad MAC clause would make the entire signed agreement meaningless (an acquirer could invoke almost anything as an excuse to walk). A real, successfully invoked MAC claim is genuinely rare — most disputes over a deteriorating target end up settled or renegotiated rather than fully litigated on MAC grounds.

Financing conditionality — is the deal actually funded?

Reading the merger agreement (not just the press release) for whether the acquirer's obligation to close is conditioned on successfully obtaining financing is a real, material fact the headline announcement often doesn't spell out clearly. A deal with a financing-out condition is meaningfully less certain to close than one where the acquirer has already fully committed the funds (or is using cash on hand) — this is exactly the kind of detail that widens or narrows the real "deal spread" discussed in Chapter 11, beyond just regulatory risk.

Why this is worth knowing beyond trivia

An analyst or investor who only reads the press release sees the story a company's PR team chose to tell. An analyst who reads the actual merger agreement's break fee, MAC clause, and financing conditions sees the real, negotiated allocation of risk between the two parties — genuinely more informative about how confident both sides actually are that the deal closes as announced, which is precisely the judgment a merger arbitrage investor (from the very first deep dive in this course) is making with real capital.