The past week in announced M&A activity is comparatively light, with only three billion-dollar-plus deals. And none of those were megadeals (more than $5 billion in value), which had become a weekly occurrence for most of 2024. 

Dealmakers say the regulatory environment—in particular antitrust enforcement—is mitigating factor in the current deal market, with clients evaluating whether potential mergers and acquisitions would clear antitrust approval by global governments.