TSAMX — Thornburg Summit Fund
Data updated: 2026-05-26
TSAMX — Thornburg Summit Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Balanced Allocation · $105.66M AUM · 0.96% expense ratio · 21.5% 1-yr return. From SEC regulatory filings.
TSAMX Fund Overview
TSAMX — Thornburg Summit Fund is a US mutual fund managed by Thornburg Investment Trust, categorised as Balanced Allocation. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: Thornburg Investment Trust
- Category: Balanced Allocation
- Assets under management: $105.66M
- 1-year return: 21.5%
- Ticker: TSAMX
- SEC CIK: 0000816153
- SEC series ID: S000064930
- Share class ID: C000210187
TSAMX Holdings
Top 10 holdings of Thornburg Summit Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Zegona Communications plc | 3.72% |
| Samsung Electronics Co Ltd | 3.19% |
| Taiwan Semiconductor Manufacturing Co Ltd | 2.94% |
| United States Treasury | 2.59% |
| Orange SA | 2.32% |
| Citigroup Inc | 2.13% |
| Amazon.com Inc | 2.12% |
| Shell PLC | 1.94% |
| Colliers International Group Inc | 1.89% |
| Alphabet Inc | 1.79% |
TSAMX Portfolio Allocation
Asset-class allocation of Thornburg Summit Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 64.4% |
| Fixed Income | 17.9% |
| Securitized | 16.9% |
| Cash & Equivalents | 0.2% |
| Loans | 0.2% |
TSAMX Performance
Total returns for TSAMX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 1.5% |
| 1 year | 21.5% |
| 3 years (annualised) | 13.5% |
TSAMX Risk Information
Risk metrics for TSAMX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 7.8%
TSAMX Costs and Fees
TSAMX costs about $96 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.96%
- Gross expense ratio: 1.81%
- Portfolio turnover: 33%
- Brokerage commissions: 2.06 bps of average net assets (SEC N-CEN)
TSAMX Cashflows
Over the 12 months to 2026-03, Thornburg Summit Fund had net outflows of $31.40K, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-03 | $1.05M |
| 2026-02 | −$1.59M |
| 2026-01 | $3.21M |
| 2025-12 | $2.75M |
| 2025-11 | $3.52M |
| 2025-10 | $255.99K |
TSAMX Debt Constituents
Largest debt holdings of Thornburg Summit Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| United States Treasury | 2.59% |
| United States Treasury | 1.63% |
| United States Treasury | 1.49% |
| United States Treasury | 1.02% |
| United States Treasury | 0.91% |
| Cco Hldgs Llc/cap Corp. | 0.44% |
| Uzbekistan Intl Bond | 0.37% |
| Empresa Gen Elec Haina | 0.32% |
| United States Treasury | 0.30% |
| United States Treasury | 0.30% |
TSAMX Prospectus and SEC Filings
Official Thornburg Summit Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Balanced Allocation 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.