MCGIX Performance — AMG Montrusco Bolton Large Cap Growth Fund, Class I
Data updated: 2026-09-25
MCGIX returned +14.96% year to date and +20.08% over one year to Jul 2026. Annualised returns are +17.83% over 3 years and +9.95% over 5 years. Against its US Small Growth category average the fund came out ahead over three years but behind over one: $100 invested three years ago grew to $164, against $142 for the category, and to $120 over one year, against $123. Volatility over the past three years was 15.09% a year. In the 12 months to Jul 2026 the fund took in a net $18.7M, and assets reached $204.31M.
MCGIX Growth of $100
What $100 invested in AMG Montrusco Bolton Large Cap Growth Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the US Small Growth category average over the same months.
| Period | MCGIX | Category average |
|---|---|---|
| 1 year (Aug 2025 – Jul 2026) | $120 | $123 |
| 3 years (Aug 2023 – Jul 2026) | $164 | $142 |
| 5 years (Aug 2021 – Jul 2026) | $161 | $121 |
| Since data start (Aug 2019 – Jul 2026) | $269 | $189 |
MCGIX Trailing Returns
Total returns to Jul 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +14.96% |
| 1 year | +20.08% |
| 3 years (annualised) | +17.83% |
| 5 years (annualised) | +9.95% |
MCGIX Annual Returns
Calendar-year total returns of AMG Montrusco Bolton Large Cap Growth Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jul) | +14.96% |
| 2025 | +16.29% |
| 2024 | +14.55% |
| 2023 | +34.41% |
| 2022 | −26.72% |
| 2021 | +25.73% |
| 2020 | +32.08% |
| 2019 (Aug–Dec) | +7.39% |
MCGIX 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 | +3.3% | +1.8% | −6.5% | +11.6% | +2.2% | +7.1% | −4.2% | — | — | — | — | — |
| 2025 | +1.7% | −1.2% | −6.2% | +0.6% | +8.5% | +6.6% | +1.6% | +1.4% | +2.9% | +1.0% | −0.1% | −0.8% |
| 2024 | +2.1% | +6.4% | +0.5% | −5.5% | +5.1% | +4.6% | −1.7% | +2.7% | −0.1% | −1.9% | +4.1% | −1.8% |
| 2023 | +7.7% | −2.4% | +7.3% | +0.2% | +0.9% | +6.3% | +3.7% | −1.1% | −4.5% | −2.1% | +9.8% | +5.2% |
| 2022 | −6.3% | −4.3% | +1.9% | −12.0% | −1.2% | −9.1% | +12.6% | −4.9% | −9.4% | +4.0% | +6.6% | −5.5% |
| 2021 | −2.6% | +2.0% | +2.6% | +8.2% | −0.9% | +4.4% | +3.5% | +2.9% | −4.3% | +5.1% | −0.3% | +3.3% |
| 2020 | +1.5% | −7.5% | −9.5% | +14.5% | +7.0% | +2.1% | +7.4% | +8.3% | −3.7% | −3.2% | +10.5% | +3.7% |
| 2019 | — | — | — | — | — | — | — | −0.8% | −0.2% | +2.9% | +2.8% | +2.6% |
MCGIX Risk
Risk measures from monthly returns over Aug 2023 – Jul 2026.
- 3-year volatility (annualised): 15.09%
- 3-year Sharpe ratio: 0.88 (vs 4.5% risk-free rate)
- Best month: +11.59% (Apr 2026)
- Worst month: −6.52% (Mar 2026)
MCGIX Fund Flows
Monthly money in and out of AMG Montrusco Bolton Large Cap Growth Fund, from SEC Form N-PORT.
- 12-month net flow: $18.7M
- 12-month gross sales (incl. reinvestments): $82.5M
- Sales ÷ redemptions: 1.29×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jul 2026 | $1.1M | $3.5M | −$2.4M |
| Jun 2026 | $1.5M | $4.6M | −$3.1M |
| May 2026 | $823K | $8.9M | −$8.1M |
| Apr 2026 | $415K | $3.5M | −$3.1M |
| Mar 2026 | $2.4M | $5.0M | −$2.6M |
| Feb 2026 | $5.6M | $3.0M | $2.6M |
| Jan 2026 | $3.5M | $6.1M | −$2.6M |
| Dec 2025 | $65.0M | $10.7M | $54.2M |
| Nov 2025 | $102K | $5.4M | −$5.3M |
| Oct 2025 | $277K | $5.0M | −$4.8M |
| Sep 2025 | $889K | $5.2M | −$4.3M |
| Aug 2025 | $864K | $2.8M | −$1.9M |
MCGIX Assets Under Management
Net assets of AMG Montrusco Bolton Large Cap Growth Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-07-31 | $204.31M |
| 2026-04-30 | $207.99M |
| 2026-01-30 | $199.38M |
| 2025-10-31 | $209.91M |
| 2025-07-31 | $209.82M |
| 2025-04-30 | $184.32M |
| 2025-01-31 | $206.86M |
| 2024-10-31 | $208.48M |
| 2024-07-31 | $215.78M |
| 2024-04-30 | $206.42M |
| 2024-01-31 | $211.26M |
| 2023-10-31 | $189.42M |
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.