Corporate Bond Sales Hit $3.37 Trillion Year-to-Date in 2026

The scale of issuance points to corporates locking in funding at a pace well ahead of last year, which matters for anyone tracking how much duration the market is absorbing and how underwriting concentration is evolving. The gap between JPMorgan's share and the next bank shows a lead that is wide but not dominant, leaving room for rivalry at the top. Microsoft's single-month total illustrates how much a handful of large issuers can move the aggregate. Whether supply stays this heavy into the rest of the year is the open question, along with whether underwriting share consolidates further.