The tax-exempt money market sector saw a moderate decrease in cash in the week ended June 18 as $801.2 million exited the funds and total net assets settled at $271.40 billion, according to the Money Fund Report, a service of iMoneyNet.com.

It was the second week of outflows that contrasted a positive start to June. Last week, the funds lost $1.45 billion and settled with $272.20 billion — on the heels of $1.19 billion of inflows in the week ended June 4 that saw total net assets rise to $273.64 billion.

The average seven-day simple yield for the 442 reporting tax-exempt funds remained at 0.01% for the third week straight, while the average maturity increased by one day to 28 days compared to last week.

The 1,084 taxable money market funds, meanwhile, lost $27.4 billion and ended the week of June 19 with $2.245 trillion in total net assets.

In the previous week, the funds gained a modest $952.3 million and total net assets finished at $2.273 trillion.

The average seven-day simple yield for the taxable funds remained unchanged at 0.03% for the 20th consecutive week, while the average maturity increased to 46 days from 45 last week.

Overall, the combined assets of the 1,526 reporting money funds fell by $28.20 billion and settled at $2.517 trillion in the week ended June 19.

That compares to last week, when the reporting funds dipped by $492.9 million and total net assets ended at $2.544 trillion.