2025 M&A activity surged nearly 50% to $4.5 trillion, the highest since 2021, driven by cheap financing, strong markets, and lighter U.S. regulations under President Donald Trump. Record 68 megadeals over $10 billion fueled the boom, with investment banks earning $135 billion in fees. 68 megadeals exceeding $10 billion each, the most ever recorded. U.S. [...]