ICI's weekly money market mutual fund statistics series shows assets declining slightly, down $4.28 billion, to $3.505 trillion in the week ended May 28. Retail money fund assets declined by $3.99 billion to $1.223 trillion and institutional money fund assets declined by $290 million to $2.282 trillion. Money fund assets are declining ahead of quarter-end, but they should rebound strongly as dividend and bond coupon payments hit next week. ICI also reported monthly mutual fund assets for April 2007.