Muni Market Braces for ‘Mega Calendar’ of Fresh Supply Next Week

The municipal-bond market is gearing up for a surge of supply in the coming week, adding to the onslaught of issuance seen in 2025.

JPMorgan Chase & Co. strategists are calling for $17.7 billion of tax-exempt bond sales next week, which would be the third-largest amount on record. They dubbed it a “mega calendar.”

“It’s a big week,” said Christopher Lanouette, a Boston-based managing director and portfolio manager at CIBC Private Wealth Group LLC.

Another issuance metric shows June shaping up to be a big month for supply, too. About $24 billion of municipal-bond sales are scheduled over ...