IOMUX — Invesco Environmental Focus Municipal Fund
Data updated: 2026-01-29
IOMUX — Invesco Environmental Focus Municipal Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Long Municipal - National Bond · $81.79M AUM · 0.61% expense ratio · 1.9% 1-yr return. From SEC regulatory filings.
IOMUX Fund Overview
IOMUX — Invesco Environmental Focus Municipal Fund is a US mutual fund managed by Aim Tax-Exempt Funds (invesco Tax-Exempt Funds), categorised as Long Municipal - National Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: Aim Tax-Exempt Funds (invesco Tax-Exempt Funds)
- Category: Long Municipal - National Bond
- Assets under management: $81.79M
- 1-year return: 1.9%
- Ticker: IOMUX
- SEC CIK: 0000909466
- SEC series ID: S000064634
- Share class ID: C000209249
IOMUX Holdings
Top 10 holdings of Invesco Environmental Focus Municipal Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| New York Transportation Development Corp. (John F. Kennedy International Airport New Terminal One) (Green Bonds) | 3.82% |
| District of Columbia (Green Bonds) | 3.51% |
| Seattle (City of), WA | 2.63% |
| City of Atlanta GA Department of Aviation | 2.60% |
| Geisinger Authority (Geisinger Health System) | 2.59% |
| Washington Metropolitan Area Transit Authority | 2.59% |
| Wisconsin (State of) Public Finance Authority (Green Bonds) | 2.58% |
| Triborough Bridge & Tunnel Authority | 2.58% |
| Metropolitan Transportation Authority (Green Bonds) | 2.52% |
| New York Transportation Development Corp. (John F. Kennedy International Airport New Terminal One) (Green Bonds) | 2.50% |
IOMUX Portfolio Allocation
Asset-class allocation of Invesco Environmental Focus Municipal Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 100.5% |
IOMUX Performance
Total returns for IOMUX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| 1 year | 1.9% |
| 3 years (annualised) | 4.9% |
| 5 years (annualised) | 0.9% |
IOMUX Risk Information
Risk metrics for IOMUX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 5.0%
IOMUX Costs and Fees
IOMUX costs about $61 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.61%
- Gross expense ratio: 0.67%
- Portfolio turnover: 10%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
IOMUX Cashflows
Over the 12 months to 2025-11, Invesco Environmental Focus Municipal Fund had net outflows of $5.72M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2025-11 | $480.16K |
| 2025-10 | −$673.24K |
| 2025-09 | −$559.29K |
| 2025-08 | $309.11K |
| 2025-07 | $1.19M |
| 2025-06 | $786.27K |
IOMUX Debt Constituents
Largest debt holdings of Invesco Environmental Focus Municipal Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| New York Transportation Development Corp. (John F. Kennedy International Airport New Terminal One) (Green Bonds) | 3.82% |
| District of Columbia (Green Bonds) | 3.51% |
| Seattle (City of), WA | 2.63% |
| City of Atlanta GA Department of Aviation | 2.60% |
| Geisinger Authority (Geisinger Health System) | 2.59% |
| Washington Metropolitan Area Transit Authority | 2.59% |
| Wisconsin (State of) Public Finance Authority (Green Bonds) | 2.58% |
| Triborough Bridge & Tunnel Authority | 2.58% |
| Metropolitan Transportation Authority (Green Bonds) | 2.52% |
| New York Transportation Development Corp. (John F. Kennedy International Airport New Terminal One) (Green Bonds) | 2.50% |
IOMUX Prospectus and SEC Filings
Official Invesco Environmental Focus Municipal Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Long Municipal - National Bond funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.