LWSTX Performance — Western Asset Short-Term Bond Fund, Class IS
Data updated: 2026-08-26
LWSTX returned +0.88% year to date and +3.47% over one year to Jun 2026. Annualised returns are +5.06% over 3 years and +2.25% over 5 years. The fund trailed its Short-Term Corporate Bond category average: $100 invested three years ago grew to $116, against $121 for the category, and to $103 over one year, against $105. Volatility over the past three years was 1.80% a year. In the 12 months to Jun 2026 the fund lost a net $21.5M, and assets reached $234.59M.
LWSTX Growth of $100
What $100 invested in Western Asset Short-Term Bond Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Short-Term Corporate Bond category average over the same months.
| Period | LWSTX | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $103 | $105 |
| 3 years (Jul 2023 – Jun 2026) | $116 | $121 |
| 5 years (Jul 2021 – Jun 2026) | $112 | $117 |
| Since data start (Jul 2019 – Jun 2026) | $118 | $128 |
LWSTX Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +0.88% |
| 1 year | +3.47% |
| 3 years (annualised) | +5.06% |
| 5 years (annualised) | +2.25% |
LWSTX Annual Returns
Calendar-year total returns of Western Asset Short-Term Bond Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +0.88% |
| 2025 | +5.70% |
| 2024 | +4.88% |
| 2023 | +5.29% |
| 2022 | −4.72% |
| 2021 | −0.23% |
| 2020 | +4.05% |
| 2019 (Jul–Dec) | +1.43% |
LWSTX Monthly Returns
Monthly total returns as reported on SEC Form N-PORT.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | +0.4% | +0.6% | −0.7% | +0.4% | +0.1% | +0.1% | — | — | — | — | — | — |
| 2025 | +0.4% | +0.9% | +0.4% | +0.6% | +0.1% | +0.6% | +0.1% | +0.9% | +0.4% | +0.4% | +0.4% | +0.4% |
| 2024 | +0.6% | −0.5% | +0.6% | −0.5% | +0.6% | +0.6% | +1.2% | +1.2% | +0.9% | −0.7% | +0.4% | +0.4% |
| 2023 | +1.4% | −0.8% | +1.1% | +0.6% | −0.2% | −0.5% | +0.6% | +0.3% | −0.2% | +0.1% | +1.5% | +1.4% |
| 2022 | −0.9% | −0.9% | −1.4% | −0.9% | +0.4% | −1.2% | +1.0% | −0.9% | −1.4% | −0.3% | +1.4% | +0.3% |
| 2021 | −0.1% | −0.1% | −0.1% | +0.4% | +0.1% | −0.1% | +0.4% | −0.1% | +0.1% | −0.4% | −0.3% | −0.1% |
| 2020 | +0.8% | +0.4% | −2.6% | +1.8% | +1.0% | +0.7% | +0.4% | +0.4% | −0.1% | +0.2% | +0.6% | +0.4% |
| 2019 | — | — | — | — | — | — | 0.0% | +0.8% | +0.2% | +0.2% | 0.0% | +0.2% |
LWSTX Risk
Risk measures from monthly returns over Jul 2023 – Jun 2026.
- 3-year volatility (annualised): 1.80%
- 3-year Sharpe ratio: 0.31 (vs 4.5% risk-free rate)
- Best month: +1.45% (Nov 2023)
- Worst month: −0.72% (Oct 2024)
LWSTX Fund Flows
Monthly money in and out of Western Asset Short-Term Bond Fund, from SEC Form N-PORT.
- 12-month net flow: −$21.5M
- 12-month gross sales (incl. reinvestments): $68.7M
- Sales ÷ redemptions: 0.76×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $4.2M | $5.7M | −$1.5M |
| May 2026 | $5.0M | $6.0M | −$984K |
| Apr 2026 | $4.1M | $6.2M | −$2.1M |
| Mar 2026 | $5.1M | $5.9M | −$871K |
| Feb 2026 | $3.3M | $4.6M | −$1.3M |
| Jan 2026 | $5.3M | $6.3M | −$1.1M |
| Dec 2025 | $3.1M | $7.5M | −$4.4M |
| Nov 2025 | $3.6M | $8.1M | −$4.5M |
| Oct 2025 | $5.4M | $7.0M | −$1.7M |
| Sep 2025 | $20.3M | $20.6M | −$328K |
| Aug 2025 | $4.8M | $6.1M | −$1.3M |
| Jul 2025 | $4.6M | $6.1M | −$1.5M |
LWSTX Assets Under Management
Net assets of Western Asset Short-Term Bond Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $234.59M |
| 2026-03-31 | $240.14M |
| 2025-12-31 | $245.31M |
| 2025-09-30 | $255.82M |
| 2025-06-30 | $258.64M |
| 2025-03-31 | $264.08M |
| 2024-12-31 | $276.24M |
| 2024-09-30 | $374.56M |
| 2024-06-28 | $592.22M |
| 2024-03-28 | $589.03M |
| 2023-12-29 | $597.15M |
| 2023-09-29 | $719.36M |
For information only. Not investment advice: figures are as reported in SEC filings and may contain errors or be out of date. Past performance does not guarantee future results.