Robust M&A activity in 2026, with U.S. deal value reaching $1.2 trillion in the first five months—nearly double the prior-year period—reflects resilient strategic and private equity interest despite tariffs, geopolitical volatility, and uneven growth. Megadeals above $5 billion have surged, with roughly one-quarter AI-motivated or tied to data centers, power infrastructure, and technology ecosystems; recent examples include large transactions in real estate, healthcare, and energy. Traders price in continued momentum through year-end as boards pursue scale, capability acquisition, and market expansion, though regulatory scrutiny on antitrust and cross-border deals plus any shifts in interest rates or credit conditions could alter closing timelines before 2027. Key near-term catalysts include pending approvals for announced megadeals and corporate earnings that often precede strategic bids.