U.S. money market fund assets fell this week but held above $3 trillion as investors shifted some cash back into stock and bond funds away from ultrasafe assets, the Money Fund Report said on Wednesday. Money funds, which are seen as alternatives to bank accounts, recorded $8.40 billion in outflows, totaling $3.007 trillion in the week ended Jan. 29, according to the report, published by iMoneyNet. Earlier this month, money fun.