Munis were little changed while long UST improved and equities ended in the red after the FOMC raised the fed funds rate target 75bps to a range of 3% to 3.25% and members are leaning toward a rate of 4.4% by yearend.

Short triple-A yields have risen more than 30 basis points over the past eight sessions while the long bond has risen 19, per Refinitiv MMD data.

While a full basis point increase will be discussed, analysts see the Fed increasing 75 basis points to a 3% to 3.25% range, with a split between those who say inflation is worsening and those that believe it peaked.

A whopping 91% of Bond Buyer California Public Finance Conference survey respondents expect municipal interest rates will end the year higher than current rates and 73% said rates will have the largest impact on the public finance industry in the next two quarters

The newly installed Fed vice chair for supervision outlined his vision for his role in his debut policy speech last week. Advocacy groups are happy, but have some unanswered questions.

"The Fed is going to need great skill and also some good luck to achieve what we sometimes call a soft landing," Yellen said.

Federal Reserve Governor Christopher Waller said he favors "another significant" increase in interest rates when the central bank meets later this month, signaling his backing for a 75 basis-point move.

"I think that we've got a good plan in place. We could very well do 75 in September," he said.

"We need to act now, forthrightly, strongly as we have been doing," Powell said Thursday in remarks at the Cato Institute's monetary policy conference.

"The outlook for future economic growth remained generally weak, with contacts noting expectations for further softening of demand over the next six to twelve months," the Fed said Wednesday in its Beige Book report.

Federal Reserve Bank of Cleveland President Loretta Mester also reiterated that she does not expect the Fed to cut rates next year, noting that policy makers need to keep inflation expectations from becoming unanchored.

A shift is underway at the Federal Reserve in how to describe neutral — the interest rate level that neither stimulates nor restrains growth — as it debates how much higher to hike.

Investors will be greeted Tuesday with a larger new-issue calendar, estimated at $6.087 billion, up from total sales of $5.551 billion in the week of Aug. 29.

The Investment Company Institute reported $755 million of outflows from muni bond mutual funds in the week ending August 24 compared to $320 million of inflows the previous week.

The Federal Reserve needs to raise its benchmark rate above 4% by early next year and leave it there for some time to help cool inflation, Cleveland Fed President Loretta Mester reiterated on Wednesday.

Federal Reserve officials, picking up where they left off over the weekend in Jackson Hole, stressed their commitment to defeating inflation while remaining vague on how big their policy move will be next month.

The Federal Reserve's balance-sheet unwind is set to ramp up this week, which means the central bank will finally begin unloading the Treasury bills it started amassing almost three years ago.

Investors will be greeted Monday with decreased supply with the new-issue calendar estimated at $5.882 billion, down from total sales of $6.134 billion in the week of Aug. 22.

Federal Reserve chair Jerome Powell said the central bank will remain aggressive in fighting inflation despite promising economic data.

Outflows from municipal bond mutual funds continued as investors pulled $1.180 billion out of funds in the latest week, according to Refinitiv Lipper data.