Columbia Ultra Short Duration Municipal Bond Fund (USMDX) - Muni National Short fund managed by Columbia Threadneedle. The fund allocates 26.73% of its portfolio to its top 10 holdings.
The largest holding in the fund is State of California at 3.39% of total assets. This is followed by BlackRock Liquidity Funds MuniCash (2.98%) and Louisiana Public Facilities Authority (2.91%).