Bankers Are Gearing Up for Another Onslaught of Monster Deals in 2026

Megadeals returned in full force in 2025. Wall Street is already bracing for another wave in 2026.

There were a record 68 transactions valued at $10 billion or more announced globally this year, according to data from LSEG going back to 1980. That drove the average annual deal size to a new high of nearly $227 million as of Dec. 26.