MBDFX Performance — AMG GW&K Core Bond ESG Fund, Class I
Data updated: 2026-09-25
MBDFX returned −0.84% year to date and +2.38% over one year to Jul 2026. Annualised returns are +3.62% over 3 years and −0.67% over 5 years. The fund trailed its Intermediate Core Bond category average: $100 invested three years ago grew to $111, against $113 for the category, and to $102 over one year, against $103. Volatility over the past three years was 5.95% a year. In the 12 months to Jul 2026 the fund lost a net $12.0M, and assets reached $98.96M.
MBDFX Growth of $100
What $100 invested in AMG GW&K Core Bond ESG Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Intermediate Core Bond category average over the same months.
| Period | MBDFX | Category average |
|---|---|---|
| 1 year (Aug 2025 – Jul 2026) | $102 | $103 |
| 3 years (Aug 2023 – Jul 2026) | $111 | $113 |
| 5 years (Aug 2021 – Jul 2026) | $97 | $100 |
| Since data start (Aug 2019 – Jul 2026) | $106 | $110 |
MBDFX Trailing Returns
Total returns to Jul 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | −0.84% |
| 1 year | +2.38% |
| 3 years (annualised) | +3.62% |
| 5 years (annualised) | −0.67% |
MBDFX Annual Returns
Calendar-year total returns of AMG GW&K Core Bond ESG Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jul) | −0.84% |
| 2025 | +7.29% |
| 2024 | +1.23% |
| 2023 | +5.73% |
| 2022 | −13.86% |
| 2021 | −1.83% |
| 2020 | +7.34% |
| 2019 (Aug–Dec) | +2.20% |
MBDFX 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 | +0.3% | +1.5% | −2.1% | +0.3% | +0.4% | +0.2% | −1.4% | — | — | — | — | — |
| 2025 | +0.5% | +2.3% | −0.1% | +0.1% | −0.5% | +1.7% | −0.1% | +1.1% | +1.2% | +0.7% | +0.6% | −0.3% |
| 2024 | −0.1% | −1.5% | +0.9% | −2.4% | +1.7% | +0.9% | +2.5% | +1.3% | +1.5% | −2.6% | +1.2% | −1.8% |
| 2023 | +3.9% | −2.7% | +2.3% | +0.7% | −1.2% | −0.2% | −0.2% | −0.7% | −2.8% | −1.8% | +5.0% | +3.9% |
| 2022 | −2.1% | −1.2% | −2.6% | −4.2% | +0.4% | −1.8% | +2.6% | −2.9% | −4.7% | −1.4% | +4.2% | −0.8% |
| 2021 | −0.5% | −1.6% | −1.1% | +0.9% | +0.1% | +1.0% | +0.9% | −0.2% | −0.7% | −0.1% | −0.1% | −0.3% |
| 2020 | +2.2% | +1.6% | −3.3% | +2.9% | +0.9% | +1.2% | +1.5% | −0.4% | −0.2% | −0.7% | +1.2% | +0.4% |
| 2019 | — | — | — | — | — | — | — | +2.6% | −0.7% | +0.3% | −0.1% | 0.0% |
MBDFX Risk
Risk measures from monthly returns over Aug 2023 – Jul 2026.
- 3-year volatility (annualised): 5.95%
- 3-year Sharpe ratio: -0.15 (vs 4.5% risk-free rate)
- Best month: +4.97% (Nov 2023)
- Worst month: −2.82% (Sep 2023)
MBDFX Fund Flows
Monthly money in and out of AMG GW&K Core Bond ESG Fund, from SEC Form N-PORT.
- 12-month net flow: −$12.0M
- 12-month gross sales (incl. reinvestments): $12.6M
- Sales ÷ redemptions: 0.51×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jul 2026 | $1.5M | $1.5M | $41K |
| Jun 2026 | $717K | $2.7M | −$1.9M |
| May 2026 | $2.1M | $2.1M | $40K |
| Apr 2026 | $1.1M | $2.0M | −$853K |
| Mar 2026 | $565K | $1.7M | −$1.2M |
| Feb 2026 | $656K | $1.1M | −$480K |
| Jan 2026 | $955K | $2.3M | −$1.3M |
| Dec 2025 | $1.3M | $1.6M | −$331K |
| Nov 2025 | $412K | $2.4M | −$2.0M |
| Oct 2025 | $736K | $4.0M | −$3.3M |
| Sep 2025 | $1.5M | $1.8M | −$276K |
| Aug 2025 | $1.0M | $1.4M | −$373K |
MBDFX Assets Under Management
Net assets of AMG GW&K Core Bond ESG Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-07-31 | $98.96M |
| 2026-04-30 | $102.53M |
| 2026-01-30 | $106.39M |
| 2025-10-31 | $110.44M |
| 2025-07-31 | $112.21M |
| 2025-04-30 | $113.32M |
| 2025-01-31 | $113.52M |
| 2024-10-31 | $118.85M |
| 2024-07-31 | $122.04M |
| 2024-04-30 | $120.13M |
| 2024-01-31 | $127.56M |
| 2023-10-31 | $122.47M |
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.