- ISIN
- US8852155584
- CUSIP
- 885215558
- Issuer
- Thornburg
- Inception Date
- Dec 23, 2002
- Category
- Global Allocation
- Min. Investment
- $5,000
- Distribution Policy
- Distributing
- Asset Class
- Multi-Asset
- Asset Class Size
- Large-Cap
- Asset Class Style
- Value
Share Price Chart
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Performance
TIBAX Performance Chart
Thornburg Investment Income Builder Fund (TIBAX) is up 17.6% since the beginning of the year. TIBAX is currently trading at $38 per share. Investors who bought $1,000 worth of TIBAX shares 5 years ago would now be looking at an investment worth $2,141.
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Returns By Period
Thornburg Investment Income Builder Fund (TIBAX) has returned 17.56% so far this year and 37.19% over the past 12 months. Over the last ten years, TIBAX has returned 12.54% per year, falling short of the S&P 500 Index benchmark, which averaged 13.88% annually.
Thornburg Investment Income Builder Fund
- 1D
- 0.34%
- 1M
- 0.61%
- YTD
- 17.56%
- 6M
- 19.01%
- 1Y
- 37.19%
- 3Y*
- 25.13%
- 5Y*
- 16.45%
- 10Y*
- 12.54%
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%
TIBAX Monthly Returns History
Based on dividend-adjusted daily data since Dec 24, 2002, TIBAX's average daily return is +0.04%, while the average monthly return is +0.88%. At this rate, an investment would double in approximately 6.6 years.
Historically, 64% of months were positive and 36% were negative. The best month was Nov 2020 with a return of +13.7%, while the worst month was Mar 2020 at -18.8%. The longest winning streak lasted 15 consecutive months, and the longest losing streak was 7 months.
On a daily basis, TIBAX closed higher 54% of trading days. The best single day was Oct 13, 2008 with a return of +8.4%, while the worst single day was Mar 16, 2020 at -11.7%.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 6.20% | 6.89% | -3.26% | 4.48% | 2.00% | 0.46% | 17.56% | ||||||
| 2025 | 3.99% | 3.16% | 1.29% | 1.02% | 4.41% | 4.16% | 1.17% | 2.90% | 2.94% | 0.72% | 3.01% | 2.94% | 36.62% |
| 2024 | 0.04% | -0.13% | 5.71% | -1.64% | 3.58% | 0.66% | 3.43% | 1.98% | 0.80% | -1.95% | -0.83% | 1.11% | 13.23% |
| 2023 | 5.74% | -0.76% | 0.37% | 2.30% | -3.22% | 4.48% | 2.43% | -1.89% | -0.71% | -2.24% | 5.54% | 5.22% | 18.01% |
| 2022 | 0.25% | -3.23% | 0.82% | -4.59% | 3.38% | -7.14% | 1.59% | -3.23% | -7.19% | 5.78% | 7.87% | -1.31% | -7.95% |
| 2021 | 1.21% | 3.09% | 3.92% | 1.39% | 2.02% | -0.45% | -0.30% | 1.54% | -1.82% | 3.61% | -1.56% | 6.08% | 20.08% |
Benchmark Metrics
Thornburg Investment Income Builder Fund has an annualized alpha of 4.42%, beta of 0.59, and R2 of 0.71 versus S&P 500 Index. Calculated based on daily prices since December 24, 2002.
- This fund participates in less of S&P 500 Index's moves in both directions, but captures a larger share of gains (76.89%) than losses (68.02%) - typical of diversified or defensive assets.
- This fund generated an annualized alpha of 4.42% versus S&P 500 Index - delivering returns beyond what market exposure alone would predict.
- Beta of 0.59 indicates this fund moves significantly less than S&P 500 Index - a genuinely defensive profile with reduced participation in both market rallies and downturns.
- Alpha
- 4.42%
- Beta
- 0.59
- R²
- 0.71
- Upside Capture
- 76.89%
- Downside Capture
- 68.02%
Expense Ratio
TIBAX has a high expense ratio of 1.14%, indicating above-average management fees.
Return for Risk
Risk / Return Rank
TIBAX ranks 98 for risk / return — in the top 98% of mutual funds on our site. This means strong returns relative to risk — exactly what professional investors look for. Well-suited for investors who want to maximize return per unit of risk.
Return / Risk — by metrics
The table below present risk-adjusted performance metrics for Thornburg Investment Income Builder Fund (TIBAX) 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.
| TIBAX | Benchmark | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +2.22 | ||
| Sortino ratioReturn per unit of downside risk | +3.27 | ||
| Omega ratioGain probability vs. loss probability | 1.84 | 1.37 | +0.48 |
| Calmar ratioReturn relative to maximum drawdown | 6.85 | 2.78 | +4.06 |
| Martin ratioReturn relative to average drawdown | 26.19 | 12.44 | +13.75 |
Dividends
Dividend History
Thornburg Investment Income Builder Fund provided a 4.93% dividend yield over the last twelve months, with an annual payout of $1.88 per share. The fund has been increasing its distributions for 2 consecutive years.
| Period | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dividend | $1.88 | $1.86 | $1.39 | $1.12 | $1.19 | $1.25 | $0.88 | $0.96 | $0.90 | $0.93 | $0.77 | $0.82 |
Dividend yield | 4.93% | 5.64% | 5.44% | 4.67% | 5.62% | 5.10% | 4.11% | 4.23% | 4.49% | 4.22% | 3.83% | 4.31% |
Monthly Dividends
The table displays the monthly dividend distributions for Thornburg Investment Income Builder 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 | $0.00 | $0.00 | $0.24 | $0.00 | $0.00 | $0.27 | $0.51 | ||||||
| 2025 | $0.00 | $0.00 | $0.23 | $0.00 | $0.00 | $0.26 | $0.00 | $0.00 | $0.32 | $0.00 | $0.66 | $0.40 | $1.86 |
| 2024 | $0.00 | $0.00 | $0.23 | $0.00 | $0.00 | $0.26 | $0.00 | $0.00 | $0.29 | $0.00 | $0.22 | $0.40 | $1.39 |
| 2023 | $0.00 | $0.00 | $0.21 | $0.00 | $0.00 | $0.25 | $0.00 | $0.00 | $0.29 | $0.00 | $0.00 | $0.37 | $1.12 |
| 2022 | $0.00 | $0.00 | $0.20 | $0.07 | $0.00 | $0.25 | $0.00 | $0.00 | $0.29 | $0.00 | $0.00 | $0.39 | $1.19 |
| 2021 | $0.00 | $0.00 | $0.23 | $0.00 | $0.00 | $0.28 | $0.00 | $0.00 | $0.31 | $0.00 | $0.00 | $0.44 | $1.25 |
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 Investment Income Builder 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 Investment Income Builder Fund was 49.12%, occurring on Mar 9, 2009. Recovery took 525 trading sessions.
The current Thornburg Investment Income Builder Fund drawdown is 0.30%.
Related event | Drawdown | Fall | Recovery | Underwater |
|---|---|---|---|---|
Financial crisis2007–2009 | -49.12%Mar 2009 | 1y 4mo | 2y 28d | 3y 5moNov 2007 - Apr 2011 |
COVID crash2020 | -34.85%Mar 2020 | 2mo 2d | 9mo 19d | 11mo 21dJan 2020 - Jan 2021 |
Bear market2022 | -20.94%Oct 2022 | 8mo 4d | 11mo 7d | 1y 7moFeb 2022 - Sep 2023 |
2016 bear market2016 | -20.72%Feb 2016 | 9mo 19d | 1y 2mo | 1y 12moApr 2015 - Apr 2017 |
2011 correction2011 | -15.17%Nov 2011 | 6mo 27d | 10mo 4d | 1y 4moMay 2011 - Sep 2012 |
Drawdown Indicators
| TIBAX | Benchmark | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -49.12% | -56.78% | +7.66% |
Max Drawdown (1Y)Largest decline over 1 year | -5.43% | -9.10% | +3.67% |
Max Drawdown (3Y)Largest decline over 3 years | -9.20% | -18.90% | +9.70% |
Max Drawdown (5Y)Largest decline over 5 years | -20.94% | -25.43% | +4.49% |
Max Drawdown (10Y)Largest decline over 10 years | -34.85% | -33.92% | -0.93% |
Current DrawdownCurrent decline from peak | -0.30% | -1.80% | +1.50% |
Average DrawdownAverage peak-to-trough decline | -5.98% | -10.71% | +4.73% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.42% | 2.03% | -0.61% |
Volatility
Volatility Chart
The chart below shows the rolling one-month volatility.
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