Major US investment banks are poised to report their highest second-quarter investment banking fees in four and a half years, driven by a surge in large-scale mergers and the blockbuster initial public offering of SpaceX.

The resurgence in deal-making activity marks a significant turnaround for the sector, which has faced headwinds from higher interest rates and regulatory scrutiny in recent quarters.

According to reports from Expansion, citing Financial Times analysis, the collective underwriting fees from the SpaceX IPO alone reached approximately $500 million.

According to reports from Expansion, citing Financial Times analysis, the collective underwriting fees from the SpaceX IPO alone reached approximately $500 million.

This single transaction has been a primary catalyst for the broader uptick in revenue, alongside a renewed wave of mega-mergers that have kept deal pipelines full.

The uniformity of the fee structure in the SpaceX deal has drawn some criticism, but the sheer volume of capital raised underscores the strong demand for equity issuance.

The rebound in fee income provides a crucial counterbalance to potential pressures in net interest income, which has been a focal point for major lenders like JPMorgan Chase and Bank of America in recent earnings previews.