OWSBX — Old Westbury Short-Term Bond Fund
Data updated: 2026-06-26
OWSBX — Old Westbury Short-Term Bond Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Short Treasury / Sovereign Bond · $161.44M AUM · 0.37% expense ratio · 3.4% 1-yr return. From SEC regulatory filings.
OWSBX Fund Overview
OWSBX — Old Westbury Short-Term Bond Fund is a US mutual fund managed by Old Westbury Funds INC, categorised as Short Treasury / Sovereign Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: Old Westbury Funds INC
- Category: Short Treasury / Sovereign Bond
- Assets under management: $161.44M
- 1-year return: 3.4%
- Ticker: OWSBX
- SEC CIK: 0000909994
- SEC series ID: S000083937
- Share class ID: C000248048
OWSBX Holdings
Top 10 holdings of Old Westbury Short-Term Bond Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| United States Of America - Bureau Of The Public Debt | 4.75% |
| United States Of America - Bureau Of The Public Debt | 4.74% |
| United States Of America - Bureau Of The Public Debt | 4.09% |
| United States Of America - Bureau Of The Public Debt | 3.88% |
| United States Of America - Bureau Of The Public Debt | 3.34% |
| United States Of America - Bureau Of The Public Debt | 3.26% |
| United States Of America - Bureau Of The Public Debt | 3.14% |
| United States Of America - Bureau Of The Public Debt | 3.05% |
| United States Of America - Bureau Of The Public Debt | 2.97% |
| United States Of America - Bureau Of The Public Debt | 2.48% |
OWSBX Portfolio Allocation
Asset-class allocation of Old Westbury Short-Term Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 94.6% |
| Securitized | 3.8% |
| Cash & Equivalents | 1.4% |
OWSBX Performance
Total returns for OWSBX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 0.5% |
| 1 year | 3.4% |
| 3 years (annualised) | 4.6% |
OWSBX Risk Information
Risk metrics for OWSBX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 1.3%
OWSBX Costs and Fees
OWSBX costs about $37 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.37%
- Gross expense ratio: 0.74%
- Portfolio turnover: 28%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
OWSBX Cashflows
Over the 12 months to 2026-04, Old Westbury Short-Term Bond Fund had net inflows of $68.48M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-04 | $5.05M |
| 2026-03 | $1.47M |
| 2026-02 | $10.92M |
| 2026-01 | $37.21M |
| 2025-12 | $472.53K |
| 2025-11 | $4.20M |
OWSBX Debt Constituents
Largest debt holdings of Old Westbury Short-Term Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| United States Of America - Bureau Of The Public Debt | 4.75% |
| United States Of America - Bureau Of The Public Debt | 4.74% |
| United States Of America - Bureau Of The Public Debt | 4.09% |
| United States Of America - Bureau Of The Public Debt | 3.88% |
| United States Of America - Bureau Of The Public Debt | 3.34% |
| United States Of America - Bureau Of The Public Debt | 3.26% |
| United States Of America - Bureau Of The Public Debt | 3.14% |
| United States Of America - Bureau Of The Public Debt | 3.05% |
| United States Of America - Bureau Of The Public Debt | 2.97% |
| United States Of America - Bureau Of The Public Debt | 2.48% |
OWSBX Prospectus and SEC Filings
Official Old Westbury Short-Term Bond Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Short Treasury / Sovereign Bond 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.