Tax-free money market funds had a short-lived period of positive inflows last week, and returned to negative territory this week as they lost $1.32 billion and ended the week of July 14 with $513.48 billion in total assets, according to the Money Fund Report, a service of iMoneyNet of Westborough, Mass.

Last week, the funds gained $11.77 billion and settled at $514.80 billion.

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