In a remarkable year for corporate mergers and acquisitions, Goldman Sachs emerged as the dominant force in global dealmaking in 2025, while the airline industry witnessed a major consolidation with Allegiant’s acquisition of Sun Country Airlines.
According to the latest industry data, Goldman Sachs topped the global M&A rankings for 2025 by advising on approximately $1.48 trillion worth of transactions, capturing roughly 32 % of total market share and marking the strongest performance for mega-deals since records began in 1980. This surge in activity was driven by a notable increase in large transactions — including 68 deals valued above $10 billion — as corporations across sectors such as technology, media, rail, and industrials pursued strategic growth initiatives amid abundant capital and favorable regulatory conditions. Goldman’s advisory portfolio not only reflects its deep relationships with corporate leaders worldwide but also highlights how investment banks play a central role in shaping the global corporate landscape.
Meanwhile, in the aviation sector, Allegiant Travel Company announced an agreement to acquire fellow U.S. low-cost carrier Sun Country Airlines in a transaction valued at around $1.5 billion, including debt. Under the terms of the deal, Sun Country shareholders will receive a mix of Allegiant stock and cash, valuing each Sun Country share at approximately $18.89 — a nearly 20 % premium over its previous closing price. Once completed, the combined airline — headquartered in Las Vegas — will operate a fleet of nearly 195 aircraft, expanding its domestic and international footprint and targeting around $140 million in annual synergies within three years of closing. Allegiant shareholders will own around 67 % of the merged airline, with Sun Country shareholders holding 33 %. The transaction is expected to close in the second half of 2026 after regulatory and shareholder approvals.
The dual developments — a banner year for global M&A driven by financial advisory leadership, and a strategic consolidation in the airline industry — underscore the continuing dynamism of corporate dealmaking. As companies seek scale and competitive advantage in a rapidly evolving market environment, such transactions reflect broader trends of consolidation, growth ambition, and cross-sector collaboration in the global economy.
References:
Goldman Sachs tops global M&A rankings with $1.48 trillion in deals (Reuters)
Allegiant to acquire Sun Country Airlines for ~$1.5 billion (Reuters)
