The investment seeks to provide current income that is exempt from federal income taxes, while maintaining a stable share price of $1. The fund invests in a variety of high-quality, short-term municipal securities. To be considered high-quality, a security generally must be rated in one of the two highest credit-quality categories for short-term securities. The fund invests in securities with effective maturities of 397 days or less, and seeks to maintain a dollar-weighted average maturity of 90 days or less.
Fund filings (PDF) »

Asset manager:
Pam Wisehaupt-Tynan (Started: Jan 1, 1988)

Advisor Company:
The Vanguard Group, Inc.
Fund family reports on Morningstar »

	1 year	3 years	5 years	10 years
Alpha*	-	-1.03	-	-
Beta*	-	1.08	-	-
Mean annual return	0.05	0.19	0.20	0.19
R-squared*	-	65.14	-	-
Standard deviation	0.11	0.39	0.33	0.34
Sharpe ratio	3.96	-0.42	-1.91	-2.48
* Against standard index

Risk measurement details »