- ISIN
- US8852151948
- CUSIP
- 885215194
- Issuer
- Thornburg
- Inception Date
- Dec 18, 2007
- Category
- Multisector Bonds
- Min. Investment
- $2,500,000
- Distribution Policy
- Distributing
- Asset Class
- Bond
Share Price Chart
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Performance
TSIIX Performance Chart
Thornburg Strategic Income Fund (TSIIX) is up 0.8% since the beginning of the year. TSIIX is currently trading at $11 per share. Investors who bought $1,000 worth of TSIIX shares 5 years ago would now be looking at an investment worth $1,159.
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Returns By Period
Thornburg Strategic Income Fund (TSIIX) has returned 0.81% so far this year and 5.16% over the past 12 months. Over the last ten years, TSIIX has returned 4.28% per year, falling short of the S&P 500 Index benchmark, which averaged 13.88% annually.
Thornburg Strategic Income Fund
- 1D
- 0.09%
- 1M
- 0.78%
- YTD
- 0.81%
- 6M
- 1.23%
- 1Y
- 5.16%
- 3Y*
- 5.90%
- 5Y*
- 3.00%
- 10Y*
- 4.28%
Benchmark (S&P 500 Index)
- 1D
- -0.37%
- 1M
- -0.01%
- YTD
- 9.16%
- 6M
- 8.64%
- 1Y
- 25.22%
- 3Y*
- 19.78%
- 5Y*
- 11.99%
- 10Y*
- 13.88%
TSIIX Monthly Returns History
Based on dividend-adjusted daily data since Dec 19, 2007, TSIIX's average daily return is +0.02%, while the average monthly return is +0.49%. At this rate, an investment would double in approximately 11.8 years.
Historically, 73% of months were positive and 27% were negative. The best month was Dec 2008 with a return of +8.2%, while the worst month was Oct 2008 at -11.7%. The longest winning streak lasted 16 consecutive months, and the longest losing streak was 5 months.
On a daily basis, TSIIX closed higher 40% of trading days. The best single day was Dec 26, 2008 with a return of +5.2%, while the worst single day was Nov 21, 2008 at -2.4%.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0.33% | 1.02% | -1.30% | 0.51% | 0.34% | -0.09% | 0.81% | ||||||
| 2025 | 0.73% | 1.61% | 0.02% | 0.37% | 0.19% | 1.22% | 0.06% | 1.16% | 0.79% | 0.46% | 0.57% | 0.16% | 7.58% |
| 2024 | 0.40% | -0.40% | 0.92% | -1.29% | 1.39% | 0.86% | 1.87% | 1.14% | 1.22% | -1.35% | 0.89% | -0.84% | 4.85% |
| 2023 | 2.27% | -0.96% | 1.45% | 0.54% | -0.16% | 0.20% | 0.65% | -0.06% | -1.13% | -0.77% | 3.08% | 2.38% | 7.63% |
| 2022 | -1.03% | -1.05% | -1.23% | -1.67% | 0.12% | -2.23% | 1.65% | -0.66% | -2.49% | -0.03% | 1.90% | 0.19% | -6.44% |
| 2021 | 0.39% | 0.14% | -0.19% | 0.69% | 0.50% | 0.38% | 0.54% | 0.30% | 0.05% | -0.11% | -0.29% | 0.36% | 2.80% |
Benchmark Metrics
Thornburg Strategic Income Fund has an annualized alpha of 5.37%, beta of 0.05, and R2 of 0.06 versus S&P 500 Index. Calculated based on daily prices since December 19, 2007.
- This fund participates in less of S&P 500 Index's moves in both directions, but captures a larger share of gains (27.95%) than losses (18.93%) - typical of diversified or defensive assets.
- Beta of 0.05 may look defensive, but with R2 of 0.06 this fund is largely uncorrelated with S&P 500 Index - low beta reflects independence, not downside protection. See the Volatility section for a true picture of this fund's risk.
- R2 of 0.06 means this fund moves largely independently of S&P 500 Index - capture ratios reflect limited market correlation rather than active downside protection. Consider using a more representative benchmark.
- Alpha
- 5.37%
- Beta
- 0.05
- R²
- 0.06
- Upside Capture
- 27.95%
- Downside Capture
- 18.93%
Expense Ratio
TSIIX has an expense ratio of 0.60%, placing it in the medium range.
Return for Risk
Risk / Return Rank
TSIIX ranks 50 for risk / return — on par with similar mutual funds. You're getting a typical balance of risk and reward. Not a standout, but not a red flag either — a reasonable choice if other factors align with your goals.
Return / Risk — by metrics
The table below present risk-adjusted performance metrics for Thornburg Strategic Income Fund (TSIIX) and compare them to S&P 500 Index.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| TSIIX | Benchmark | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.14 | ||
| Sortino ratioReturn per unit of downside risk | +0.31 | ||
| Omega ratioGain probability vs. loss probability | 1.36 | 1.37 | -0.01 |
| Calmar ratioReturn relative to maximum drawdown | 2.46 | 2.78 | -0.33 |
| Martin ratioReturn relative to average drawdown | 8.46 | 12.44 | -3.98 |
Dividends
Dividend History
Thornburg Strategic Income Fund provided a 4.88% dividend yield over the last twelve months, with an annual payout of $0.56 per share.
| Period | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dividend | $0.56 | $0.58 | $0.58 | $0.51 | $0.39 | $0.51 | $0.46 | $0.46 | $0.39 | $0.42 | $0.39 | $0.50 |
Dividend yield | 4.88% | 4.99% | 5.10% | 4.50% | 3.49% | 4.17% | 3.70% | 3.82% | 3.40% | 3.59% | 3.43% | 4.51% |
Monthly Dividends
The table displays the monthly dividend distributions for Thornburg Strategic Income Fund. The dividends shown in the table have been adjusted to account for any splits that may have occurred.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | $0.05 | $0.05 | $0.05 | $0.05 | $0.05 | $0.00 | $0.24 | ||||||
| 2025 | $0.05 | $0.05 | $0.05 | $0.05 | $0.05 | $0.05 | $0.05 | $0.04 | $0.04 | $0.04 | $0.05 | $0.05 | $0.58 |
| 2024 | $0.05 | $0.04 | $0.04 | $0.04 | $0.04 | $0.05 | $0.05 | $0.05 | $0.05 | $0.05 | $0.05 | $0.05 | $0.58 |
| 2023 | $0.04 | $0.04 | $0.04 | $0.04 | $0.04 | $0.04 | $0.04 | $0.04 | $0.04 | $0.04 | $0.05 | $0.05 | $0.51 |
| 2022 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.03 | $0.04 | $0.00 | $0.04 | $0.04 | $0.04 | $0.39 |
| 2021 | $0.05 | $0.05 | $0.05 | $0.05 | $0.04 | $0.04 | $0.04 | $0.04 | $0.04 | $0.04 | $0.06 | $0.03 | $0.51 |
Drawdowns
Drawdowns Chart
The Drawdowns chart displays portfolio losses from any high point along the way. Drawdowns are calculated considering price movements and all distributions paid, if any.
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Worst Drawdowns
The table below displays the maximum drawdowns of the Thornburg Strategic Income Fund. A maximum drawdown is a measure of risk, indicating the largest reduction in portfolio value due to a series of losing trades.
The maximum drawdown for the Thornburg Strategic Income Fund was 21.98%, occurring on Nov 24, 2008. Recovery took 127 trading sessions.
The current Thornburg Strategic Income Fund drawdown is 0.54%.
Related event | Drawdown | Fall | Recovery | Underwater |
|---|---|---|---|---|
Financial crisis2007–2009 | -21.98%Nov 2008 | 4mo 27d | 6mo 6d | 11mo 3dJun 2008 - May 2009 |
COVID crash2020 | -9.58%Mar 2020 | 18d | 2mo 16d | 3mo 4dMar 2020 - Jun 2020 |
Bear market2022 | -9.40%Oct 2022 | 11mo 14d | 1y 2mo | 2y 1moNov 2021 - Dec 2023 |
2016 pullback2016 | -6.48%Feb 2016 | 1y 5mo | 3mo 26d | 1y 9moSep 2014 - Jun 2016 |
2011 pullback2011 | -6.24%Oct 2011 | 2mo 25d | 4mo 5d | 7moJul 2011 - Feb 2012 |
Drawdown Indicators
| TSIIX | Benchmark | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -21.98% | -56.78% | +34.80% |
Max Drawdown (1Y)Largest decline over 1 year | -2.14% | -9.10% | +6.96% |
Max Drawdown (3Y)Largest decline over 3 years | -2.62% | -18.90% | +16.28% |
Max Drawdown (5Y)Largest decline over 5 years | -9.40% | -25.43% | +16.03% |
Max Drawdown (10Y)Largest decline over 10 years | -9.58% | -33.92% | +24.34% |
Current DrawdownCurrent decline from peak | -0.54% | -1.80% | +1.26% |
Average DrawdownAverage peak-to-trough decline | -1.64% | -10.71% | +9.07% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.62% | 2.03% | -1.41% |
Volatility
Volatility Chart
The chart below shows the rolling one-month volatility.
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