ACWIX Performance — AMG GW&K Small/Mid Cap Growth Fund, Class I
Data updated: 2026-09-25
ACWIX returned +13.58% year to date and +24.99% over one year to Jul 2026. Annualised returns are +13.43% over 3 years and +6.34% over 5 years. The fund beat its US Mid-Cap Growth category average: $100 invested three years ago grew to $146, against $139 for the category, and to $125 over one year, against $110. Volatility over the past three years was 17.44% a year. In the 12 months to Jul 2026 the fund took in a net $1.5M, and assets reached $42.75M.
ACWIX Growth of $100
What $100 invested in AMG GW&K Small/Mid Cap Growth Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the US Mid-Cap Growth category average over the same months.
| Period | ACWIX | Category average |
|---|---|---|
| 1 year (Aug 2025 – Jul 2026) | $125 | $110 |
| 3 years (Aug 2023 – Jul 2026) | $146 | $139 |
| 5 years (Aug 2021 – Jul 2026) | $136 | $121 |
| Since data start (Aug 2019 – Jul 2026) | $216 | $189 |
ACWIX Trailing Returns
Total returns to Jul 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +13.58% |
| 1 year | +24.99% |
| 3 years (annualised) | +13.43% |
| 5 years (annualised) | +6.34% |
ACWIX Annual Returns
Calendar-year total returns of AMG GW&K Small/Mid Cap Growth Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jul) | +13.58% |
| 2025 | +11.20% |
| 2024 | +9.43% |
| 2023 | +21.35% |
| 2022 | −22.18% |
| 2021 | +14.27% |
| 2020 | +45.89% |
| 2019 (Aug–Dec) | −0.64% |
ACWIX 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% | +2.7% | −5.1% | +9.1% | +3.0% | +5.6% | −5.4% | — | — | — | — | — |
| 2025 | +4.7% | −5.2% | −8.3% | −2.3% | +5.3% | +5.1% | +2.8% | +3.7% | +2.2% | +2.8% | +2.2% | −1.2% |
| 2024 | −2.6% | +7.9% | +2.0% | −7.0% | +3.0% | +0.3% | +5.1% | +0.8% | −0.1% | −0.9% | +9.2% | −7.1% |
| 2023 | +10.2% | −1.9% | −1.2% | −1.6% | −2.5% | +8.6% | +3.2% | −1.3% | −5.1% | −5.3% | +8.8% | +9.4% |
| 2022 | −11.5% | 0.0% | 0.0% | −8.8% | −1.4% | −6.9% | +10.1% | −5.1% | −7.8% | +9.5% | +5.0% | −5.3% |
| 2021 | +2.1% | +2.3% | −4.3% | +5.7% | −1.3% | +2.7% | +2.4% | +3.8% | −3.2% | +6.5% | −5.8% | +3.4% |
| 2020 | +0.8% | −7.6% | −14.6% | +13.7% | +12.6% | +2.4% | +5.9% | +7.2% | −1.6% | +0.1% | +14.5% | +9.3% |
| 2019 | — | — | — | — | — | — | — | −4.9% | −3.4% | +1.2% | +6.9% | 0.0% |
ACWIX Risk
Risk measures from monthly returns over Aug 2023 – Jul 2026.
- 3-year volatility (annualised): 17.44%
- 3-year Sharpe ratio: 0.51 (vs 4.5% risk-free rate)
- Best month: +9.43% (Dec 2023)
- Worst month: −8.33% (Mar 2025)
ACWIX Fund Flows
Monthly money in and out of AMG GW&K Small/Mid Cap Growth Fund, from SEC Form N-PORT.
- 12-month net flow: $1.5M
- 12-month gross sales (incl. reinvestments): $5.5M
- Sales ÷ redemptions: 1.39×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jul 2026 | $281K | $203K | $78K |
| Jun 2026 | $246K | $198K | $48K |
| May 2026 | $130K | $397K | −$268K |
| Apr 2026 | $97K | $326K | −$229K |
| Mar 2026 | $215K | $369K | −$154K |
| Feb 2026 | $132K | $303K | −$171K |
| Jan 2026 | $151K | $452K | −$301K |
| Dec 2025 | $3.9M | $586K | $3.3M |
| Nov 2025 | $27K | $320K | −$293K |
| Oct 2025 | $87K | $166K | −$79K |
| Sep 2025 | $212K | $213K | −$706 |
| Aug 2025 | $47K | $438K | −$391K |
ACWIX Assets Under Management
Net assets of AMG GW&K Small/Mid Cap Growth Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-07-31 | $42.75M |
| 2026-04-30 | $41.69M |
| 2026-01-30 | $39.81M |
| 2025-10-31 | $38.96M |
| 2025-07-31 | $36.20M |
| 2025-04-30 | $32.42M |
| 2025-01-31 | $42.68M |
| 2024-10-31 | $41.84M |
| 2024-07-31 | $40.52M |
| 2024-04-30 | $39.43M |
| 2024-01-31 | $39.14M |
| 2023-10-31 | $34.70M |
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.