Short-dated U.S. Treasury debt yields risk turning negative as the U.S. government curbs sales of Treasury bills, but analysts are looking at the progress of the stimulus bill to assess whether any dip in yields could be a temporary issue.Bill yields last turned negative in March 2020 amid market turmoil prompted by the pandemic spreading to the United States. If borrowing rates fall too far it could disrupt key funding markets and hurt the almost $5 trillion money market fund industry, making funds hesitant to accept new investments. The U.S. Treasury Department, slashing its cash balance after amassing liquidity to … (full story)