Government debt holdings soar as deposits outpace loan demand.

Quest for yield creates interest in ultra-short-term bond funds.

Quest for yield creates interest in ultra-short-term bond funds.

Money fund reforms triggered a big migration out of prime funds into government funds.

Money fund reforms triggered a big migration out of prime funds into government funds.

Approach of the Oct. 14 implementation of money fund reforms magnifies pressures.

Approach of the Oct. 14 implementation of money fund reforms magnifies pressures.

Mid-October implementation of new rules is triggering exodus from prime funds.