Barron's "Fund of Information: Popularity Is Painful for Treasury Money Markets" writes, "Historically low interest rates may be good for the economy, but they're murder on money-market fund profits." It says, "Vanguard recently closed to new accounts its Vanguard Admiral Treasury Money Market Fund (VUSXX), which jumped by $5.4 billion in 2008 to $26 billion last month, and Vanguard Treasury Money Market (VMPXX), which grew by $1.7 billion last year to $7.9 billion. Investors poured money into them as virtually every asset class was plummeting." Barron's also cites these funds as closed to new investors: Fidelity U.S Treasury Money Market Fund (FDLXX), Fidelity Institutional Money Market Treasury Portfolio (FISXX), Fidelity Institutional Money Market Treasury Only Portfolio (FOIXX) and Fidelity Cash Management (FDUXX), and MFS Government Money Market Fund (MMGXX).
