CMMYX — Columbia AMT-Free Massachusetts Intermediate Muni Bond Fund
Data updated: 2026-06-25
CMMYX — Columbia AMT-Free Massachusetts Intermediate Muni Bond Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Intermediate Municipal - National Bond · $67.19M AUM · 0.47% expense ratio · 5.7% 1-yr return. From SEC regulatory filings.
CMMYX Fund Overview
CMMYX — Columbia AMT-Free Massachusetts Intermediate Muni Bond Fund is a US mutual fund managed by Columbia Funds Series Trust I, categorised as Intermediate 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: Columbia Funds Series Trust I
- Category: Intermediate Municipal - National Bond
- Assets under management: $67.19M
- 1-year return: 5.7%
- Ticker: CMMYX
- SEC CIK: 0000773757
- SEC series ID: S000012087
- Share class ID: C000184731
CMMYX Holdings
Top 10 holdings of Columbia AMT-Free Massachusetts Intermediate Muni Bond Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Massachusetts Bay Transportation Authority Sales Tax Revenue | 6.23% |
| Massachusetts St College Bldg Auth | 5.61% |
| Massachusetts St Mas 12/30 Fixed 5 | 4.52% |
| Massachusetts Bay Transportation Authority Sales Tax Revenue | 4.07% |
| Massachusetts St Dev Fin Agy R Masdev 10/36 Fixed 5 | 2.39% |
| Massachusetts Development Finance Agency | 2.30% |
| Massachusetts Development Finance Agency | 2.26% |
| Massachusetts Development Finance Agency | 2.21% |
| Massachusetts Development Finance Agency | 1.80% |
| Massachusetts St Dev Fin Agy | 1.77% |
CMMYX Portfolio Allocation
Asset-class allocation of Columbia AMT-Free Massachusetts Intermediate Muni Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 99.4% |
| Equity | 0.3% |
CMMYX Performance
Total returns for CMMYX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 0.8% |
| 1 year | 5.7% |
| 3 years (annualised) | 3.2% |
| 5 years (annualised) | 0.9% |
CMMYX Risk Information
Risk metrics for CMMYX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 2.8%
CMMYX Costs and Fees
CMMYX costs about $47 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.47%
- Gross expense ratio: 0.64%
- Portfolio turnover: 13%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
CMMYX Cashflows
Over the 12 months to 2026-04, Columbia AMT-Free Massachusetts Intermediate Muni Bond Fund had net outflows of $6.52M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-04 | −$547.19K |
| 2026-03 | −$1.21M |
| 2026-02 | $71.82K |
| 2026-01 | $122.40K |
| 2025-12 | $2.37M |
| 2025-11 | −$550.22K |
CMMYX Debt Constituents
Largest debt holdings of Columbia AMT-Free Massachusetts Intermediate Muni Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| Massachusetts Bay Transportation Authority Sales Tax Revenue | 6.23% |
| Massachusetts St College Bldg Auth | 5.61% |
| Massachusetts St Mas 12/30 Fixed 5 | 4.52% |
| Massachusetts Bay Transportation Authority Sales Tax Revenue | 4.07% |
| Massachusetts St Dev Fin Agy R Masdev 10/36 Fixed 5 | 2.39% |
| Massachusetts Development Finance Agency | 2.30% |
| Massachusetts Development Finance Agency | 2.26% |
| Massachusetts Development Finance Agency | 2.21% |
| Massachusetts Development Finance Agency | 1.80% |
| Massachusetts St Dev Fin Agy | 1.77% |
CMMYX Prospectus and SEC Filings
Official Columbia AMT-Free Massachusetts Intermediate Muni Bond Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Intermediate 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.