hi,I do recall that a few MMFs were at risk of breaking the buck back then but I seriously doubt VAN or Fido would have. For those with an interest, "" Product summary
Vanguard Federal Money Market Fund's investment objective is to seek to provide current income while maintaining liquidity and a stable share price of $1. The fund invests at least 99.5% of its total assets in cash, U.S. government securities, and/or repurchase agreements that are collateralized solely by U.S. government securities or cash (collectively, government securities). As such it is considered one of the most conservative investment options offered by Vanguard. Although the fund invests in short-term U.S. government securities, the amount of income that a shareholder may receive will be largely dependent on the current interest rate environment. Investors who have a short-term savings goal and are interested in a fund that invests in securities issued by the U.S. government or its agencies may wish to consider this option.""