WACSX — Western Asset Core Bond Fund
Data updated: 2026-05-28
WACSX — Western Asset Core Bond Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Long Total / Aggregate Bond · $1.77B AUM · 0.42% expense ratio · 4.8% 1-yr return. From SEC regulatory filings.
WACSX Fund Overview
WACSX — Western Asset Core Bond Fund is a US mutual fund managed by Western Asset Funds INC, categorised as Long Total / Aggregate Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: Western Asset Funds INC
- Category: Long Total / Aggregate Bond
- Assets under management: $1.77B
- 1-year return: 4.8%
- Ticker: WACSX
- SEC CIK: 0000863520
- SEC series ID: S000000713
- Share class ID: C000066988
WACSX Holdings
Top 10 holdings of Western Asset Core Bond Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| United States Treasury Bonds | 6.73% |
| United States Treasury Bonds | 5.46% |
| United States Treasury Notes | 1.58% |
| Federal National Mortgage Association | 0.90% |
| Government National Mortgage Association | 0.80% |
| Tsmc Arizona Corp. | 0.78% |
| United States Treasury Notes | 0.77% |
| Federal National Mortgage Association | 0.71% |
| Federal National Mortgage Association | 0.68% |
| Government National Mortgage Association | 0.63% |
WACSX Portfolio Allocation
Asset-class allocation of Western Asset Core Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Securitized | 52.4% |
| Fixed Income | 50.5% |
| Derivatives | 0.2% |
WACSX Performance
Total returns for WACSX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | -0.2% |
| 1 year | 4.8% |
| 3 years (annualised) | 3.5% |
| 5 years (annualised) | -0.5% |
WACSX Risk Information
Risk metrics for WACSX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 3.7%
WACSX Costs and Fees
WACSX costs about $42 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.42%
- Gross expense ratio: 0.44%
- Portfolio turnover: 93%
- Brokerage commissions: 0.73 bps of average net assets (SEC N-CEN)
WACSX Cashflows
Over the 12 months to 2026-03, Western Asset Core Bond Fund had net outflows of $810.73M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-03 | −$27.87M |
| 2026-02 | −$29.71M |
| 2026-01 | −$25.07M |
| 2025-12 | −$35.52M |
| 2025-11 | −$26.21M |
| 2025-10 | −$39.89M |
WACSX Debt Constituents
Largest debt holdings of Western Asset Core Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| United States Treasury Bonds | 6.73% |
| United States Treasury Bonds | 5.46% |
| United States Treasury Notes | 1.58% |
| Tsmc Arizona Corp. | 0.78% |
| United States Treasury Notes | 0.77% |
| United States Treasury Notes | 0.59% |
| JSC National Company KazMunayGas | 0.59% |
| Tsmc Arizona Corp. | 0.40% |
| Wells Fargo & Co. | 0.39% |
| Comision Federal de Electricidad | 0.36% |
WACSX Prospectus and SEC Filings
Official Western Asset Core Bond Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Long Total / Aggregate 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.