NMBAX — Nuveen Intermediate Duration Municipal Bond Fund
Data updated: 2026-06-12
NMBAX — Nuveen Intermediate Duration Municipal Bond Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Long Municipal - National Bond · $8.75B AUM · 0.64% expense ratio · 4.1% 1-yr return. From SEC regulatory filings.
NMBAX Fund Overview
NMBAX — Nuveen Intermediate Duration Municipal Bond Fund is a US mutual fund managed by Nuveen Municipal Trust/ma, 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: Nuveen Municipal Trust/ma
- Category: Long Municipal - National Bond
- Assets under management: $8.75B
- 1-year return: 4.1%
- Ticker: NMBAX
- SEC CIK: 0001020660
- SEC series ID: S000000285
- Share class ID: C000000699
NMBAX Holdings
Top 10 holdings of Nuveen Intermediate Duration Municipal Bond Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Puerto Rico Sales Tax Financing Corporation, Sales Tax Revenue Bonds, Restructured 2018A-1 | 0.60% |
| Washington State Housing Finance Commission, Social Municipal Certificates Multifamily Revenue Bonds, Series 2021-1 Class A | 0.43% |
| New Jersey Economic Development Authority, Water Facilities Revenue Bonds, New Jersey-American Water Company Inc. Project, Refunding Series 2019A | 0.40% |
| Colorado Health Facilities Authority, Colorado, Revenue Bonds, CommonSpirit Health, Series 2019B-2 | 0.38% |
| Richmond Hospital Authority, Indiana, Revenue Bonds, Reid Hospital Project, Refunding Series 2018B | 0.38% |
| District of Columbia Tobacco Settlement Corporation, Tobacco Settlement Asset-Backed Bonds, Series 2006A | 0.38% |
| New York Transportation Development Corporation, New York, Special Facilities Bonds, LaGuardia Airport Terminal B Redevelopment Project, Series 2016A | 0.34% |
| Illinois Finance Authority, Revenue Bonds, Ascension Health Alliance, Series 2016C | 0.32% |
| Sweetwater County, Wyoming, Pollution Control Revenue Refunding Bonds, Idaho Power Company Project, Series 2006 | 0.32% |
| Berks County Municipal Authority, Pennsylvania, Revenue Bonds, Tower Health Project, Series 2024A-3 | 0.29% |
NMBAX Portfolio Allocation
Asset-class allocation of Nuveen Intermediate Duration Municipal Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 98.3% |
| Securitized | 0.4% |
| Equity | 0.1% |
NMBAX Performance
Total returns for NMBAX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | -0.3% |
| 1 year | 4.1% |
| 3 years (annualised) | 3.1% |
| 5 years (annualised) | 0.9% |
NMBAX Risk Information
Risk metrics for NMBAX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 3.6%
NMBAX Costs and Fees
NMBAX costs about $64 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.64%
- Gross expense ratio: 0.64%
- Portfolio turnover: 27%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
NMBAX Cashflows
Over the 12 months to 2026-03, Nuveen Intermediate Duration Municipal Bond Fund had net inflows of $1.04B, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-03 | $138.80M |
| 2026-02 | $117.82M |
| 2026-01 | $67.36M |
| 2025-12 | $89.78M |
| 2025-11 | $68.34M |
| 2025-10 | $83.19M |
NMBAX Debt Constituents
Largest debt holdings of Nuveen Intermediate Duration Municipal Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| Puerto Rico Sales Tax Financing Corporation, Sales Tax Revenue Bonds, Restructured 2018A-1 | 0.60% |
| Washington State Housing Finance Commission, Social Municipal Certificates Multifamily Revenue Bonds, Series 2021-1 Class A | 0.43% |
| New Jersey Economic Development Authority, Water Facilities Revenue Bonds, New Jersey-American Water Company Inc. Project, Refunding Series 2019A | 0.40% |
| Colorado Health Facilities Authority, Colorado, Revenue Bonds, CommonSpirit Health, Series 2019B-2 | 0.38% |
| Richmond Hospital Authority, Indiana, Revenue Bonds, Reid Hospital Project, Refunding Series 2018B | 0.38% |
| District of Columbia Tobacco Settlement Corporation, Tobacco Settlement Asset-Backed Bonds, Series 2006A | 0.38% |
| New York Transportation Development Corporation, New York, Special Facilities Bonds, LaGuardia Airport Terminal B Redevelopment Project, Series 2016A | 0.34% |
| Illinois Finance Authority, Revenue Bonds, Ascension Health Alliance, Series 2016C | 0.32% |
| Sweetwater County, Wyoming, Pollution Control Revenue Refunding Bonds, Idaho Power Company Project, Series 2006 | 0.32% |
| Berks County Municipal Authority, Pennsylvania, Revenue Bonds, Tower Health Project, Series 2024A-3 | 0.29% |
NMBAX Prospectus and SEC Filings
Official Nuveen Intermediate Duration Municipal Bond 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.