GCBUX Performance — Green Century Balanced Fund, Institutional Class
Data updated: 2026-10-09
GCBUX returned +6.68% year to date and +11.39% over one year to Jul 2026. Annualised returns are +9.47% over 3 years and +4.71% over 5 years. The fund trailed its Moderate Allocation category average: $100 invested three years ago grew to $131, against $138 for the category, and to $111 over one year, against $115. Volatility over the past three years was 9.51% a year. In the 12 months to Jul 2026 the fund lost a net $26.0M, and assets reached $373.94M.
GCBUX Growth of $100
What $100 invested in Green Century Balanced Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Moderate Allocation category average over the same months.
| Period | GCBUX | Category average |
|---|---|---|
| 1 year (Aug 2025 – Jul 2026) | $111 | $115 |
| 3 years (Aug 2023 – Jul 2026) | $131 | $138 |
| 5 years (Aug 2021 – Jul 2026) | $126 | $133 |
| Since data start (Nov 2020 – Jul 2026) | $145 | $160 |
GCBUX Trailing Returns
Total returns to Jul 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +6.68% |
| 1 year | +11.39% |
| 3 years (annualised) | +9.47% |
| 5 years (annualised) | +4.71% |
GCBUX Annual Returns
Calendar-year total returns of Green Century Balanced Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jul) | +6.68% |
| 2025 | +8.91% |
| 2024 | +10.04% |
| 2023 | +12.10% |
| 2022 | −15.93% |
| 2021 | +16.74% |
| 2020 (Nov–Dec) | +2.83% |
GCBUX 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 | +0.8% | −0.1% | −4.0% | +7.0% | +3.5% | −0.1% | −0.3% | — | — | — | — | — |
| 2025 | +1.3% | −0.3% | −3.9% | +0.9% | +3.7% | +2.9% | −0.1% | +2.2% | +1.5% | +0.7% | +0.1% | −0.1% |
| 2024 | +0.8% | +2.3% | +1.9% | −2.8% | +4.5% | +1.4% | +1.1% | +2.0% | +0.7% | −2.0% | +3.4% | −3.3% |
| 2023 | +5.3% | −2.3% | +1.3% | +0.7% | −1.2% | +3.5% | +1.9% | −2.2% | −4.0% | −1.9% | +7.0% | +4.1% |
| 2022 | −4.8% | −1.9% | +0.6% | −6.8% | −0.8% | −5.2% | +7.2% | −2.9% | −7.2% | +4.4% | +5.3% | −4.0% |
| 2021 | −0.7% | +1.4% | +1.7% | +3.7% | +0.5% | +2.2% | +2.4% | +2.0% | −3.4% | +5.4% | −1.1% | +1.8% |
| 2020 | — | — | — | — | — | — | — | — | — | — | 0.0% | +2.8% |
GCBUX Risk
Risk measures from monthly returns over Aug 2023 – Jul 2026.
- 3-year volatility (annualised): 9.51%
- 3-year Sharpe ratio: 0.52 (vs 4.5% risk-free rate)
- Best month: +7.04% (Apr 2026)
- Worst month: −4.02% (Mar 2026)
GCBUX Fund Flows
Monthly money in and out of Green Century Balanced Fund, from SEC Form N-PORT.
- 12-month net flow: −$26.0M
- 12-month gross sales (incl. reinvestments): $45.4M
- Sales ÷ redemptions: 0.64×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jul 2026 | $2.6M | $3.6M | −$1.0M |
| Jun 2026 | $4.3M | $11.8M | −$7.6M |
| May 2026 | $1.9M | $5.7M | −$3.8M |
| Apr 2026 | $2.8M | $6.1M | −$3.4M |
| Mar 2026 | $2.7M | $6.8M | −$4.2M |
| Feb 2026 | $2.2M | $6.9M | −$4.7M |
| Jan 2026 | $2.1M | $4.8M | −$2.8M |
| Dec 2025 | $18.6M | $6.8M | $11.9M |
| Nov 2025 | $2.7M | $4.9M | −$2.2M |
| Oct 2025 | $2.1M | $4.7M | −$2.6M |
| Sep 2025 | $1.5M | $3.8M | −$2.3M |
| Aug 2025 | $1.9M | $5.3M | −$3.4M |
GCBUX Assets Under Management
Net assets of Green Century Balanced Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-07-31 | $373.94M |
| 2026-04-30 | $377.22M |
| 2026-01-31 | $379.80M |
| 2025-10-31 | $387.01M |
| 2025-07-31 | $378.90M |
| 2025-04-30 | $364.19M |
| 2025-01-31 | $398.64M |
| 2024-10-31 | $404.58M |
| 2024-07-31 | $405.08M |
| 2024-04-30 | $378.77M |
| 2024-01-31 | $381.81M |
| 2023-10-31 | $356.29M |
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.