OWFIX — Old Westbury Fixed Income Fund
Data updated: 2026-06-26
OWFIX — Old Westbury Fixed Income Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Intermediate Treasury / Sovereign Bond · $1.63B AUM · 0.57% expense ratio · 3.1% 1-yr return. From SEC regulatory filings.
OWFIX Fund Overview
OWFIX — Old Westbury Fixed Income Fund is a US mutual fund managed by Old Westbury Funds INC, categorised as Intermediate 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: Intermediate Treasury / Sovereign Bond
- Assets under management: $1.63B
- 1-year return: 3.1%
- Ticker: OWFIX
- SEC CIK: 0000909994
- SEC series ID: S000001856
- Share class ID: C000004833
OWFIX Holdings
Top 10 holdings of Old Westbury Fixed Income 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 | 9.52% |
| United States Of America - Bureau Of The Public Debt | 9.19% |
| United States Of America - Bureau Of The Public Debt | 7.39% |
| United States Of America - Bureau Of The Public Debt | 6.88% |
| United States Of America - Bureau Of The Public Debt | 6.60% |
| United States Of America - Bureau Of The Public Debt | 5.56% |
| United States Of America - Bureau Of The Public Debt | 4.88% |
| United States Of America - Bureau Of The Public Debt | 4.84% |
| United States Of America - Bureau Of The Public Debt | 4.31% |
| United States Of America - Bureau Of The Public Debt | 4.00% |
OWFIX Portfolio Allocation
Asset-class allocation of Old Westbury Fixed Income Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 94.6% |
| Securitized | 4.1% |
| Cash & Equivalents | 0.9% |
OWFIX Performance
Total returns for OWFIX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 0.1% |
| 1 year | 3.1% |
| 3 years (annualised) | 3.4% |
| 5 years (annualised) | 0.8% |
OWFIX Risk Information
Risk metrics for OWFIX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 2.7%
OWFIX Costs and Fees
OWFIX costs about $57 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.57%
- Gross expense ratio: 0.69%
- Portfolio turnover: 84%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
OWFIX Cashflows
Over the 12 months to 2026-04, Old Westbury Fixed Income Fund had net inflows of $160.58M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-04 | $3.20M |
| 2026-03 | $10.24M |
| 2026-02 | $14.23M |
| 2026-01 | $34.62M |
| 2025-12 | $29.64M |
| 2025-11 | $13.01M |
OWFIX Debt Constituents
Largest debt holdings of Old Westbury Fixed Income 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 | 9.52% |
| United States Of America - Bureau Of The Public Debt | 9.19% |
| United States Of America - Bureau Of The Public Debt | 7.39% |
| United States Of America - Bureau Of The Public Debt | 6.88% |
| United States Of America - Bureau Of The Public Debt | 6.60% |
| United States Of America - Bureau Of The Public Debt | 5.56% |
| United States Of America - Bureau Of The Public Debt | 4.88% |
| United States Of America - Bureau Of The Public Debt | 4.84% |
| United States Of America - Bureau Of The Public Debt | 4.31% |
| United States Of America - Bureau Of The Public Debt | 4.00% |
OWFIX Prospectus and SEC Filings
Official Old Westbury Fixed Income Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Intermediate 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.