ICI's latest weekly "Money Market Mutual Fund Assets" report shows assets rising by $15.5 billion to $3.789 trillion in the latest week ended Wednesday, May 27. Institutional funds accounted for the move, rising $22.74 billion to $2.521 trillion, while retail funds declined by $7.29 billion to $1.268 trillion. ICI says, "Taxable government money market fund assets in the retail category decreased by $1.39 billion to $219.25 billion, taxable non-government money market fund assets decreased by $4.53 billion to $775.49 billion, and tax-exempt fund assets decreased by $1.37 billion to $273.49 billion.... Among institutional funds, taxable government money market fund assets increased by $18.09 billion to $1.111 trillion, taxable non-government money market fund assets increased by $4.87 billion to $1.220 trillion, and tax-exempt fund assets decreased by $217 million to $190.04 billion." Year-to-date, money fund assets have declined by $41.1 billion, or 1.1%. Over the past 52 weeks, money fund assets have increased by $262 billion, or 7.4%, and since the end of August 2007 money fund assets have increased by over $1.0 trillion. ICI also released its monthly mutual fund asset series for April 2009, which showed money fund assets declining by $21.9 billion, or 0.57%, to $3.792 trillion last month. Liquid assets of stock mutual funds as a percent of total assets fell from 5.5% to 5.2%, though they remain up from 4.3% a year ago.