William Blair Low Duration Fund
Data updated: 2022-05-24
C000081290 — William Blair Low Duration Fund. Money Market · $40.46M AUM · 0.35% expense ratio. Holdings, fees, performance and SEC filings.
C000081290 Fund Overview
William Blair Low Duration Fund is a US mutual fund managed by William Blair Funds, categorised as Money Market. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: William Blair Funds
- Category: Money Market
- Assets under management: $40.46M
- 1-year return: -1.3%
- SEC CIK: 0000822632
- SEC series ID: S000027022
- Share class ID: C000081290
C000081290 Investment Objective and Strategy
William Blair Low Duration Fund describes its objective and strategy as follows, from its latest prospectus filed with the SEC by William Blair Funds.
Investment objective
The William Blair Low Duration Fund seeks to maximize total return. Total return includes both income and capital appreciation.
Principal investment strategy
The Fund seeks to maximize total return by investing in a diversified portfolio of investment grade low duration debt securities. Total return includes both income and capital appreciation. The Fund seeks to outperform the Bank of America Merrill Lynch 1-Year U.S. Treasury Note Index through an actively managed diversified portfolio of securities. The Adviser emphasizes individual security selection, as well as shifts in the Funds portfolio among market sectors. The Adviser also actively manages the Funds average duration relative to the Bank of America Merrill Lynch 1-Year U.S. Treasury Note Index. The Fund invests primarily in investment grade debt securities rated in the highest three categories by at least one of the following three nationally recognized statistical rating organizations: Fitch Ratings, Moodys Investors Service, Inc.
and Standard & Poors, a division of The McGraw-Hill Companies, Inc. The Fund invests in U.S. dollar-denominated securities. The Funds assets will principally be invested in the following: (1) obligations of or guaranteed by the U.S. Government, its agencies or instrumentalities; (2) corporate debt securities issued by domestic or foreign companies; (3) mortgage-backed securities and asset-backed securities, which are debt securities issued by a corporation, trust or custodian, or by a U.S. Government agency or instrumentality, that are collateralized (i.e., secured as to payment of interest and/or principal) by a portfolio or pool of assets, such as mortgages, debit balances on credit card accounts or U.S. Government securities; and (4) money market instruments, including, but not limited to, those issued by domestic companies, the U.S.
Government and its agencies and instrumentalities, U.S. banks and municipalities. The Fund may also invest in Rule 144A securities. The anticipated weighted average duration for the Fund is between 0.5 to 2 years. The duration of an instrument is different from the maturity of an instrument in that duration measures the average period remaining until the discounted value of the amounts due (principal and interest) under the instrument are to be paid, rather than the instruments stated final maturity. In addition, portfolio duration of two years means that if interest rates increased by one percent, the value of the portfolio would decrease by approximately two percent. For purposes of calculating duration, instruments allowing prepayment will be assigned a prepayment schedule by the Adviser based upon industry experience.
The Fund may also invest in U.S. dollar-denominated money market instruments issued by foreign banks, foreign governments and multinational organizations, such as the World Bank. The Fund may also invest in Section 4(2) commercial paper.
C000081290 Performance
Total returns for C000081290 (as of 2026-10-01), from SEC filings.
| Period | Total return |
|---|---|
| 1 year | -1.3% |
| 3 years (annualised) | 0.9% |
C000081290 Risk Information
Risk metrics for C000081290, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 0.6%
C000081290 Costs and Fees
C000081290 costs about $35 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.35%
- Gross expense ratio: 0.53%
- Portfolio turnover: 72%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
C000081290 Cashflows
Over the 12 months to 2022-03, William Blair Low Duration Fund had net outflows of $122.50M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2022-03 | −$18.60M |
| 2022-02 | −$41.89M |
| 2022-01 | −$4.31M |
| 2021-12 | −$13.24M |
| 2021-11 | −$10.82M |
| 2021-10 | −$2.52M |
C000081290 Debt Constituents
No individual debt constituents are reported in William Blair Low Duration Fund's latest SEC N-PORT filing.
C000081290 Prospectus and SEC Filings
Official William Blair Low Duration Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2021-04-30
- Prospectus (485BPOS) — filed 2020-05-15
- Prospectus (485BPOS) — filed 2019-05-15
- Portfolio holdings (N-PORT) — filed 2022-05-24
- Portfolio holdings (N-PORT) — filed 2022-02-28
- Portfolio holdings (N-PORT) — filed 2021-11-29
- Annual census (N-CEN) — filed 2022-03-14
- Annual census (N-CEN) — filed 2021-03-15
Related Funds
Other Money Market funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.