The Investment Company Institute released its latest monthly "Money Market Fund Holdings" summary (with data as of April 27, 2018) Friday. This monthly update reviews the aggregate daily and weekly liquid assets, regional exposure, and maturities (WAM and WAL) for Prime and Government money market funds. (See also Crane Data's May 10 News, "May Money Fund Portfolio Holdings: Treasury Surge Ends; Repo Rebound.") The MMF Holdings release says, "The Investment Company Institute (ICI) reports that, as of the final Friday in April, prime money market funds held 25.4 percent of their portfolios in daily liquid assets and 41.9 percent in weekly liquid assets, while government money market funds held 60.1 percent of their portfolios in daily liquid assets and 77.1 percent in weekly liquid assets." Prime DLA decreased from 27.1% last month and Prime WLA decreased from 43.2% last month. Govt MMFs' DLA decreased from 61.8% last month and Govt WLA decreased from 77.2% last month. ICI explains, "At the end of April, prime funds had a weighted average maturity (WAM) of 28 days and a weighted average life (WAL) of 64 days. Average WAMs and WALs are asset-weighted. Government money market funds had a WAM of 31 days and a WAL of 89 days." Prime WAMs were down three days from last month, and WALs were down by four days. Govt WAMs were down three days from March and Govt WALs were down by three days from last month. Regarding Holdings By Region of Issuer, ICI's release tells us, "Prime money market funds’ holdings attributable to the Americas declined from $194.68 billion in March to $181.75 billion in April. Government money market funds’ holdings attributable to the Americas declined from $1,781.36 billion in March to $1,709.08 billion in April." The Prime Money Market Funds by Region of Issuer table shows Americas-related holdings at $181.8 billion, or 39.8%; Asia and Pacific at $86.6 billion, or 18.9%; Europe at $183.2 billion, or 40.1%; and, Other (including Supranational) at $5.7 billion, or 1.3%. The Government Money Market Funds by Region of Issuer table shows Americas at $1.709 trillion, or 77.3%; Asia and Pacific at $112.9 billion, or 5.1%; and Europe at $387.2 billion, or 17.5%.