BOSOX Performance — Boston Trust Walden Small Cap Fund
Data updated: 2026-08-26
BOSOX returned +14.77% year to date and +14.37% over one year to Jun 2026. Annualised returns are +9.52% over 3 years and +6.46% over 5 years. The fund trailed its US Small Blend category average: $100 invested three years ago grew to $131, against $156 for the category, and to $114 over one year, against $133. Volatility over the past three years was 16.35% a year. In the 12 months to Jun 2026 the fund lost a net $359.0M, and assets reached $1.06B.
BOSOX Growth of $100
What $100 invested in Boston Trust Walden Small Cap Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the US Small Blend category average over the same months.
| Period | BOSOX | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $114 | $133 |
| 3 years (Jul 2023 – Jun 2026) | $131 | $156 |
| 5 years (Jul 2021 – Jun 2026) | $137 | $141 |
| Since data start (Jul 2019 – Jun 2026) | $185 | $209 |
BOSOX Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +14.77% |
| 1 year | +14.37% |
| 3 years (annualised) | +9.52% |
| 5 years (annualised) | +6.46% |
BOSOX Annual Returns
Calendar-year total returns of Boston Trust Walden Small Cap Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +14.77% |
| 2025 | −4.01% |
| 2024 | +12.54% |
| 2023 | +10.08% |
| 2022 | −9.05% |
| 2021 | +28.13% |
| 2020 | +8.17% |
| 2019 (Jul–Dec) | +7.70% |
BOSOX 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 | +3.9% | +0.6% | −6.5% | +7.5% | +1.1% | +8.1% | — | — | — | — | — | — |
| 2025 | +2.6% | −3.0% | −3.6% | −3.6% | +3.1% | +1.1% | −1.3% | +3.1% | −1.5% | −3.3% | +4.6% | −1.7% |
| 2024 | −2.5% | +3.9% | +3.3% | −5.0% | +3.3% | −1.0% | +9.7% | −1.8% | +2.4% | −1.5% | +10.7% | −8.0% |
| 2023 | +7.8% | −1.7% | −2.6% | −1.7% | −4.2% | +6.8% | +4.4% | −3.0% | −5.3% | −3.5% | +5.5% | +8.6% |
| 2022 | −6.9% | +1.1% | +1.2% | −5.6% | +0.5% | −5.9% | +8.8% | −4.8% | −7.2% | +12.7% | +3.6% | −4.8% |
| 2021 | +0.3% | +7.9% | +3.0% | +3.2% | +0.3% | +0.8% | +1.1% | +3.5% | −2.1% | +5.4% | −3.2% | +5.5% |
| 2020 | −2.5% | −10.8% | −14.9% | +10.5% | +4.3% | −0.5% | +2.4% | +3.5% | −4.6% | +4.7% | +12.5% | +7.1% |
| 2019 | — | — | — | — | — | — | +2.6% | −2.4% | +1.2% | +1.8% | +2.6% | +1.8% |
BOSOX Risk
Risk measures from monthly returns over Jul 2023 – Jun 2026.
- 3-year volatility (annualised): 16.35%
- 3-year Sharpe ratio: 0.31 (vs 4.5% risk-free rate)
- Best month: +10.71% (Nov 2024)
- Worst month: −7.98% (Dec 2024)
BOSOX Fund Flows
Monthly money in and out of Boston Trust Walden Small Cap Fund, from SEC Form N-PORT.
- 12-month net flow: −$359.0M
- 12-month gross sales (incl. reinvestments): $170.1M
- Sales ÷ redemptions: 0.32×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $7.2M | $50.5M | −$43.4M |
| May 2026 | $5.3M | $34.6M | −$29.3M |
| Apr 2026 | $5.7M | $32.5M | −$26.8M |
| Mar 2026 | $12.4M | $46.7M | −$34.3M |
| Feb 2026 | $13.8M | $26.4M | −$12.6M |
| Jan 2026 | $10.3M | $64.6M | −$54.2M |
| Dec 2025 | $53.4M | $46.5M | $6.9M |
| Nov 2025 | $6.6M | $52.8M | −$46.2M |
| Oct 2025 | $18.3M | $92.8M | −$74.6M |
| Sep 2025 | $9.5M | $40.1M | −$30.7M |
| Aug 2025 | $12.9M | $21.4M | −$8.5M |
| Jul 2025 | $14.8M | $20.0M | −$5.3M |
BOSOX Assets Under Management
Net assets of Boston Trust Walden Small Cap Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $1.06B |
| 2026-03-31 | $991.45M |
| 2025-12-31 | $1.11B |
| 2025-09-30 | $1.28B |
| 2025-06-30 | $1.32B |
| 2025-03-31 | $1.34B |
| 2024-12-31 | $1.41B |
| 2024-09-30 | $1.44B |
| 2024-06-28 | $1.31B |
| 2024-03-28 | $1.33B |
| 2023-12-29 | $1.29B |
| 2023-09-30 | $1.18B |
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.