Vanguard will be merging the $6.7 billion Vanguard Treasury Money Market Fund into the $21.8 billion Vanguard Admiral Treasury Money Market Fund in August, and it has already closed the Vanguard Federal Money Market Fund to new accounts and additional purchases.

“Taking these preventative measures will protect fund shareholders and will help ensure that the yields of the funds remain competitive,” said Bill McNabb, chief executive officer of Vanguard. “It is quite possible that yields on government-backed securities, and consequently the Vanguard funds, will remain quite low for the foreseeable future. Shareholders may wish to consider switching to alternative Vanguard fund options that are consistent with their goals and risk tolerance.”

Vanguard noted that the high demand for government-backed securities as a safe haven, coupled with cuts to interest rates by the Federal Reserve, has driven yields of government-backed securities to record lows. One- and three-month Treasury bills now yield less than 20 basis points.

Subscribe Now

Access to premium content including in-depth coverage of mutual funds, hedge funds, 401(K)s, 529 plans, and more.

3-Week Free Trial

Insight and analysis into the management, marketing, operations and technology of the asset management industry.