"Total money market mutual fund assets decreased by $16.45 billion to $2.633 trillion for the week ended Wednesday, September 14, the Investment Company Institute reported today. Taxable government funds decreased by $3.38 billion, taxable non-government funds decreased by $9.98 billion, and tax-exempt funds decreased by $3.09 billion.

Retail: Assets of retail money market funds decreased by $4.84 billion to $939.03 billion. Taxable government money market fund assets in the retail category decreased by $310 million to $192.76 billion, taxable non-government money market fund assets decreased by $3.11 billion to $552.62 billion, and tax-exempt fund assets decreased by $1.43 billion to $193.65 billion.

Institutional: Assets of institutional money market funds decreased by $11.61 billion to $1.694 trillion. Among institutional funds, taxable government money market fund assets decreased by $3.07 billion to $663.45 billion, taxable non-government money market fund assets decreased by $6.87 billion to $930.51 billion, and tax-exempt fund assets decreased by $1.67 billion to $100.00 billion.

ICI reports money market fund assets to the Federal Reserve each week. Revisions are due to data adjustments, reclassifications, and changes in the number of funds reporting. Historical weekly money market data back to January 2008 are available on the ICI website."

Copyright Reuters, 2011