Primary bond market

Among those approved is a $117 million variable rate demand bond expected to be marketed late this year.

Earlier Thursday, the market was "chugging along, doing OK, just kind of nothing, in between slight strength to modest upticks, but the narrative changed when that bank news came out. The market really ran pretty quickly," said Chris Brigati, managing director and CIO at SWBC.

"In theory at least, municipal yields should be able to stabilize here; levels remain attractive for pure income buyers while more sustainable constructive fund inflows are just enough to speak for rising issuance in the absence of meaningful reinvestment," said Matt Fabian, president of Municipal Market Analytics.

"If I wanted to target municipal finance, this would be a really good place for me to start," said Omid Rahmani, public finance cybersecurity lead at Fitch Ratings.

As the technical picture tends to turn "more favorable" during November and December, Birch Creek strategists believe "the wider new issue concessions brought about via the heavy new issue calendar will likely be rewarded."

The average weekly issuance is at least $10 billion, said John Flahive, head of investment solutions and co-head of municipal bonds at Insight Investment.

The county awarded $215 million of general obligation limited tax bonds for a jail project with uncertain future funding to lowest bidder BofA Securities.

The Fayetteville Public Works Commission bonds are to be priced competivitely Oct. 21.

Municipals are impacted by fluctuating supply and demand influences more than most other markets, said Jeff Timlin, a partner at Sage Advisory.

Carving up risk allows buyers who normally shy away from junk bonds to buy the pooled securities.