Impax Sustainable Allocation Fund
IMPAX FUNDS SERIES TRUST I · 2 share classes
Fund profile
As filed in the prospectus · 2026 Q2
The Sustainable Allocation Funds primary investment objective is to seek income and conservation of principal.
The fund invests through a team-managed allocation among multiple underlying Impax funds, which themselves hold companies positioned to benefit from the transition to a sustainable economy and screened using proprietary corporate and issuer resilience analysis covering governance, environmental and social risk management, climate risk, and human capital. The adviser allocates approximately 50–75% to equities and 25–50% to debt securities across underlying funds based on market outlook, valuations, and economic factors, and may adjust allocations without notice. The fund adheres to a fossil fuel policy excluding companies deriving revenues from fossil fuel exploration and production, or more than 5% from refining and distribution unless credible net-zero transition plans exist. Because the fund's returns depend on the adviser's allocation decisions among underlying funds, performance will diverge from any single benchmark.
| Share class | Expense ratio |
|---|---|
| PAXWX | 0.94% |
| PAXIX | 0.69% |
Portfolio turnover 13.00% · as of 2026 Q2
Allocation
Asset groups · long / short shown separately, never netted · 2026 Q2
| Other | 96.01% |
| Cash & short-term | 3.94% |
Latest quarter
What changed since the fund's previous filing
Return profile
Total return as filed — price change plus distributions reinvested · trailing figures to Apr 2026
| Share class | 1-year | 3-year | 5-year | Vol | Worst fall |
|---|---|---|---|---|---|
| +15.38% | +27.22% | +26.97% | 8.33% | -7.66% | |
| +15.68% | +28.24% | +28.59% | 8.32% | -7.51% |
These classes hold the same portfolio, so the 1.62pp spread over 5 years is the cost difference between them — roughly 0.32pp a year — not a difference in what they own.
May 2026 and Jun 2026 have been filed since the trailing figures were struck, so they are not in the table above or the curve — every figure here shares one cut-off, which is what makes them comparable with other funds.
Holdings
By % of NAV · equity positions carry filed share counts · every resolvable issuer links to its company page
| Ticker | Issuer | %NAV | Value | Shares |
|---|---|---|---|---|
| PXBIX | Impax Core Bond FundPXBIX | 32.22% | $772.55M | — |
| — | Impax US Sustainable Economy Fund | 26.04% | $624.27M | — |
| PXLIX | Impax Large Cap FundPXLIX | 10.35% | $248.04M | — |
| — | Impax International Sustainable Economy Fund | 8.81% | $211.19M | — |
| — | Impax Small Cap Fund | 6.16% | $147.70M | — |
| PXHIX | Impax High Yield Bond FundPXHIX | 5.06% | $121.33M | — |
| — | JPMorgan U.S. Treasury Plus Money Market Fund | 3.94% | $94.45M | — |
| — | Impax Global Sustainable Infrastructure ETF | 3.00% | $71.81M | — |
| — | Impax Global Environmental Markets Fund | 2.27% | $54.51M | — |
| PXGOX | Impax Global Opportunities FundPXGOX | 2.11% | $50.61M | — |
Top 10 positions are 99.95% of net assets, top 25 99.95%, across 10 issuers.
See more of this fund's book
More positions with filed share counts, and the quarter-over-quarter change list rather than the largest few — free with an account, no card required.
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