Weekly reporting municipal bond mutual funds had a net outflow of $848 million during the period ending Sept. 24, AMG Data Services reported.
The results were down from a $398 million outflow the previous week, and represents the second straight outflow after 27 consecutive inflows, according to the Arcata, Calif.-based fund tracker.
The four-week moving average for all muni bond funds - which includes the monthly reporters - fell to a $159.7 million outflow from a $484.1 billion inflow.
Taxable bond funds that report weekly had a $5.4 billion net outflow, after a $4.3 billion outflow the week before.
Weekly reporting equity funds had an inflow of $9.1 billion, after a $13.9 billion inflow the previous week.
High-yield municipal bond fund net outflows for the week ended Oct. 1 were $161.1 million.
Overall municipal assets total $376.9 billion as of the week ended Oct. 1.