GMBYX Performance — Impact Bond Fund, Institutional Class
Data updated: 2026-08-27
GMBYX returned +0.13% year to date and +2.26% over one year to Jun 2026. The annualised 3-year return is +3.39%. The fund trailed its Intermediate Core Bond category average: $100 invested three years ago grew to $111, against $115 for the category, and to $102 over one year, against $104. Volatility over the past three years was 5.32% a year. In the 12 months to Jun 2026 the fund took in a net $8.2M, and assets reached $95.89M.
GMBYX Growth of $100
What $100 invested in Impact Bond 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 | GMBYX | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $102 | $104 |
| 3 years (Jul 2023 – Jun 2026) | $111 | $115 |
| Since data start (Jan 2023 – Jun 2026) | $110 | $118 |
GMBYX Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +0.13% |
| 1 year | +2.26% |
| 3 years (annualised) | +3.39% |
GMBYX Annual Returns
Calendar-year total returns of Impact Bond Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +0.13% |
| 2025 | +5.46% |
| 2024 | +1.45% |
| 2023 | +2.52% |
GMBYX 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 | +0.2% | +1.5% | −2.0% | +0.1% | +0.1% | +0.2% | — | — | — | — | — | — |
| 2025 | +0.5% | +2.3% | 0.0% | −0.1% | −1.0% | +1.5% | −0.4% | +1.1% | +0.1% | +0.8% | +0.6% | −0.2% |
| 2024 | −0.1% | −1.3% | +0.9% | −2.3% | +1.3% | +0.9% | +2.2% | +1.5% | +1.2% | −2.4% | +1.1% | −1.5% |
| 2023 | +0.1% | −2.2% | +2.1% | +0.6% | −0.9% | −0.4% | −0.1% | −0.8% | −2.3% | −1.4% | +4.4% | +3.5% |
GMBYX Risk
Risk measures from monthly returns over Jul 2023 – Jun 2026.
- 3-year volatility (annualised): 5.32%
- 3-year Sharpe ratio: -0.21 (vs 4.5% risk-free rate)
- Best month: +4.39% (Nov 2023)
- Worst month: −2.36% (Oct 2024)
GMBYX Fund Flows
Monthly money in and out of Impact Bond Fund, from SEC Form N-PORT.
- 12-month net flow: $8.2M
- 12-month gross sales (incl. reinvestments): $15.5M
- Sales ÷ redemptions: 2.13×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $603K | $248K | $354K |
| May 2026 | $2.4M | $618K | $1.8M |
| Apr 2026 | $2.4M | $743K | $1.6M |
| Mar 2026 | $412K | $1.2M | −$833K |
| Feb 2026 | $1.1M | $177K | $971K |
| Jan 2026 | $718K | $976K | −$258K |
| Dec 2025 | $1.1M | $671K | $458K |
| Nov 2025 | $1.1M | $738K | $394K |
| Oct 2025 | $900K | $341K | $559K |
| Sep 2025 | $2.0M | $61K | $1.9M |
| Aug 2025 | $1.0M | $1.4M | −$380K |
| Jul 2025 | $1.7M | $51K | $1.6M |
GMBYX Assets Under Management
Net assets of Impact Bond Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $95.89M |
| 2026-03-31 | $92.71M |
| 2025-12-31 | $93.85M |
| 2025-09-30 | $92.57M |
| 2025-06-30 | $89.59M |
| 2025-03-31 | $87.41M |
| 2024-12-31 | $86.20M |
| 2024-09-30 | $88.64M |
| 2024-06-28 | $83.89M |
| 2024-03-28 | $84.57M |
| 2023-12-29 | $81.87M |
| 2023-09-29 | $79.22M |
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.