PAXIX Performance — Impax Sustainable Allocation Fund, Institutional Class
Data updated: 2026-08-19
PAXIX returned +5.33% year to date and +11.26% over one year to Jun 2026. Annualised returns are +9.98% over 3 years and +4.77% over 5 years. Against its Alternative category average the fund came out behind over three years but ahead over one: $100 invested three years ago grew to $133, against $170 for the category, and to $111 over one year, against $110. Volatility over the past three years was 9.45% a year. In the 12 months to Jun 2026 the fund took in a net $63.1M, and assets reached $2.40B.
PAXIX Growth of $100
What $100 invested in Impax Sustainable Allocation Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Alternative category average over the same months.
| Period | PAXIX | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $111 | $110 |
| 3 years (Jul 2023 – Jun 2026) | $133 | $170 |
| 5 years (Jul 2021 – Jun 2026) | $126 | $159 |
| Since data start (Jul 2019 – Jun 2026) | $174 | $190 |
PAXIX Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +5.33% |
| 1 year | +11.26% |
| 3 years (annualised) | +9.98% |
| 5 years (annualised) | +4.77% |
PAXIX Annual Returns
Calendar-year total returns of Impax Sustainable Allocation Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +5.33% |
| 2025 | +11.15% |
| 2024 | +7.78% |
| 2023 | +13.44% |
| 2022 | −16.23% |
| 2021 | +15.64% |
| 2020 | +16.50% |
| 2019 (Jul–Dec) | +7.66% |
PAXIX 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 | +0.6% | +0.4% | −4.1% | +5.7% | +2.5% | +0.3% | — | — | — | — | — | — |
| 2025 | +1.9% | −0.3% | −3.5% | +0.4% | +3.3% | +3.5% | +1.5% | +1.3% | +1.9% | +1.1% | −0.2% | 0.0% |
| 2024 | +0.5% | +1.9% | +2.3% | −3.6% | +2.8% | +0.6% | +2.4% | +1.9% | +1.8% | −3.0% | +2.9% | −2.8% |
| 2023 | +1.6% | −2.7% | +6.1% | +3.5% | −2.0% | +1.2% | −4.0% | −2.0% | +1.8% | −2.5% | +7.7% | +4.9% |
| 2022 | −0.1% | −2.1% | −4.1% | −5.4% | −0.1% | −5.6% | −7.3% | −3.8% | +5.9% | −3.5% | +5.3% | +4.2% |
| 2021 | +2.4% | +1.6% | 0.0% | +0.9% | +1.2% | +3.5% | −3.5% | +1.8% | +1.8% | +3.1% | −1.5% | +3.6% |
| 2020 | −7.4% | −3.9% | +0.3% | +2.1% | +3.4% | +7.1% | −1.6% | +3.8% | +3.8% | +2.5% | +7.8% | −1.4% |
| 2019 | — | — | — | — | — | — | +1.3% | 0.0% | +0.7% | +1.9% | +1.9% | +1.6% |
PAXIX Risk
Risk measures from monthly returns over Jul 2023 – Jun 2026.
- 3-year volatility (annualised): 9.45%
- 3-year Sharpe ratio: 0.58 (vs 4.5% risk-free rate)
- Best month: +7.70% (Nov 2023)
- Worst month: −4.10% (Mar 2026)
PAXIX Fund Flows
Monthly money in and out of Impax Sustainable Allocation Fund, from SEC Form N-PORT.
- 12-month net flow: $63.1M
- 12-month gross sales (incl. reinvestments): $399.3M
- Sales ÷ redemptions: 1.19×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $81.8M | $57.6M | $24.3M |
| May 2026 | $4.3M | $31.3M | −$27.0M |
| Apr 2026 | $8.5M | $30.5M | −$21.9M |
| Mar 2026 | $9.2M | $23.1M | −$13.9M |
| Feb 2026 | $7.2M | $27.5M | −$20.3M |
| Jan 2026 | $22.8M | $25.2M | −$2.5M |
| Dec 2025 | $218.9M | $32.0M | $186.9M |
| Nov 2025 | $13.2M | $23.3M | −$10.0M |
| Oct 2025 | $9.2M | $22.0M | −$12.8M |
| Sep 2025 | $5.9M | $17.7M | −$11.8M |
| Aug 2025 | $11.7M | $20.5M | −$8.8M |
| Jul 2025 | $6.5M | $25.7M | −$19.2M |
PAXIX Assets Under Management
Net assets of Impax Sustainable Allocation Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $2.40B |
| 2026-03-31 | $2.27B |
| 2025-12-31 | $2.38B |
| 2025-09-30 | $2.37B |
| 2025-06-30 | $2.30B |
| 2025-03-31 | $2.21B |
| 2024-12-31 | $2.30B |
| 2024-09-30 | $2.40B |
| 2024-06-30 | $2.31B |
| 2024-03-31 | $2.36B |
| 2023-12-31 | $2.30B |
| 2023-09-30 | $2.13B |
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.