TMB — Thornburg Multi Sector Bond ETF
Data updated: 2026-07-24
TMB — Thornburg Multi Sector Bond ETF data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Intermediate Total / Aggregate Bond · $184.67M AUM · 0.55% expense ratio · 5.3% 1-yr return. From SEC regulatory filings.
TMB Fund Overview
TMB — Thornburg Multi Sector Bond ETF is a US ETF managed by Thornburg ETF Trust, categorised as Intermediate Total / Aggregate Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US ETF
- Manager: Thornburg ETF Trust
- Category: Intermediate Total / Aggregate Bond
- Assets under management: $184.67M
- 1-year return: 5.3%
- Ticker: TMB
- SEC CIK: 0002038383
- SEC series ID: S000089220
- Share class ID: C000255735
TMB Holdings
Top 10 holdings of Thornburg Multi Sector Bond ETF by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| United States Treasury | 4.49% |
| United States Treasury | 3.94% |
| United States Treasury | 3.67% |
| United States Treasury | 1.62% |
| Fannie Mae | 1.38% |
| Fannie Mae | 1.34% |
| Thornburg Capital Management Fund | 1.11% |
| United States Treasury | 1.09% |
| United States Treasury | 1.02% |
| Freddie Mac | 0.97% |
TMB Portfolio Allocation
Asset-class allocation of Thornburg Multi Sector Bond ETF by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 64.8% |
| Securitized | 32.4% |
| Equity | 1.6% |
| Loans | 0.5% |
| Cash & Equivalents | 0.2% |
TMB Performance
Total returns for TMB (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 0.8% |
| 1 year | 5.3% |
TMB Risk Information
Risk metrics for TMB, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 2.3%
TMB Costs and Fees
TMB costs about $55 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.55%
- Gross expense ratio: 0.55%
- Portfolio turnover: 23%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
TMB Cashflows
Over the 12 months to 2026-02, Thornburg Multi Sector Bond ETF had net inflows of $54.66M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-02 | $12.88M |
| 2026-01 | $815 |
| 2025-12 | −$3.85M |
| 2025-11 | $0 |
| 2025-10 | $1.28M |
| 2025-09 | $3.83M |
TMB Debt Constituents
Largest debt holdings of Thornburg Multi Sector Bond ETF by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| United States Treasury | 4.49% |
| United States Treasury | 3.94% |
| United States Treasury | 3.67% |
| United States Treasury | 1.62% |
| United States Treasury | 1.09% |
| United States Treasury | 1.02% |
| United States Treasury | 0.87% |
| United States Treasury | 0.56% |
| United States Treasury | 0.44% |
| United States Treasury | 0.32% |
TMB Prospectus and SEC Filings
Official Thornburg Multi Sector Bond ETF filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Intermediate Total / Aggregate 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.