Material Adverse Change

A business can change between signing a contract and completing it, and a material adverse change clause addresses what happens if a significant negative event occurs during that period. It may also appear in a loan agreement.

MAC is sometimes called material adverse effect, or MAE, but neither label alone tells you what remedy exists. Read the definition in the actual contract first, because some clauses focus on the company's financial condition or operations while others cover its ability to perform obligations or the enforceability of documents.

The events, time horizon and exceptions can differ, and a lender's MAC definition may not work like a buyer's acquisition condition. In a purchase agreement, the buyer may have a condition that no defined MAE has occurred before completion, and a breach may allow the buyer not to close, but only under the contract and applicable law.

It is not a free option to abandon a deal when the price later seems unattractive, and disputes can be costly and fact-specific. An agreement may carve out economic recessions, changes in law, wars or industry-wide shocks, then bring an event back within the definition if it harms the target disproportionately compared with peers.

A headline about a global crisis does not answer how the target was affected relative to its competitors, and a share-price decline alone does not establish a MAC. Duration matters, since a temporary sales dip may differ from lasting damage to earnings capacity.

Evidence about the cause and expected persistence is important, and budget variance alone does not necessarily prove materiality. Investigate whether forecasts were reliable and whether the issue was known or disclosed when the parties signed.

The Delaware Supreme Court's Akorn opinion illustrates a rare successful MAE finding in a merger dispute, one that depended on the agreement, severe company-specific deterioration and detailed evidence. It does not establish that every fall in profits permits a buyer to walk away, and other jurisdictions may take different approaches.

In lending, a MAC clause might be a representation made on drawdown, a condition precedent to funding or an event of default; these are different triggers, so check notice requirements and cure provisions rather than assuming automatic acceleration. Negotiation should narrow uncertainty: the borrower may seek a definition tied to ability to meet payment obligations, while a lender may want protection against wider deterioration in business, assets or prospects, and commercial parties should have counsel review any vague phrase such as "in the lender's opinion." A practical checklist starts with the definition, the triggering provision, exceptions, evidence standard and available remedy, and asks who decides whether a MAC occurred, who must prove it, and whether a dispute delays closing or funding.

For example, assume an acquisition target has a one-month 10% revenue shortfall: the buyer should not treat that number as an automatic MAC, whereas a lasting collapse at the target while comparable firms remain stable may present a different case but still needs legal analysis.