TBWIX vs. FSOSX
TBWIX (Thornburg Better World International Fund) and FSOSX (Fidelity Series Overseas Fund) are both Foreign Large Cap Equities funds. Over the past 5 years, TBWIX returned 5.23%/yr vs 5.72%/yr for FSOSX. Their correlation of 0.85 means they have usually moved in the same direction. TBWIX charges 1.21%/yr vs 0.01%/yr for FSOSX.
Performance
TBWIX vs. FSOSX - Performance Comparison
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Returns By Period
The year-to-date returns for both stocks are quite close, with TBWIX having a 7.25% return and FSOSX slightly lower at 6.97%.
TBWIX
- 1D
- 0.08%
- 1M
- 3.30%
- 6M
- 3.79%
- YTD
- 7.25%
- 1Y
- 15.69%
- 3Y*
- 12.77%
- 5Y*
- 5.23%
- 10Y*
- 10.54%
- ALL TIME*
- 10.66%
FSOSX
- 1D
- 0.95%
- 1M
- -0.44%
- 6M
- 2.70%
- YTD
- 6.97%
- 1Y
- 10.01%
- 3Y*
- 13.63%
- 5Y*
- 5.72%
- 10Y*
- —
- ALL TIME*
- 9.63%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $0.00 | $0.00 | $0.00 | |
| $0.00 | $0.00 | $0.00 |
TBWIX vs. FSOSX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|---|---|---|
TBWIX Thornburg Better World International Fund | 7.25% | 24.25% | 7.10% | 12.72% | -18.02% | 20.88% | 26.67% | 9.09% |
FSOSX Fidelity Series Overseas Fund | 6.97% | 21.29% | 5.87% | 21.49% | -23.25% | 19.59% | 16.36% | 7.78% |
Correlation
The correlation between TBWIX and FSOSX is 0.77, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.77 |
Correlation (3Y) Balances recent behavior with more history. | 0.80 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.83 |
Correlation (All Time) Calculated using the full available price history since Jun 28, 2019 | 0.85 |
The correlation between TBWIX and FSOSX has been stable across timeframes, ranging from 0.77 to 0.85 - a consistent structural relationship.
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Return for Risk
TBWIX vs. FSOSX — Risk / Return Rank
TBWIX
FSOSX
TBWIX vs. FSOSX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Thornburg Better World International Fund (TBWIX) and Fidelity Series Overseas Fund (FSOSX). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
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.
| TBWIX | FSOSX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.61 | ||
| Sortino ratioReturn per unit of downside risk | +0.78 | ||
| Omega ratioGain probability vs. loss probability | 1.23 | 1.13 | +0.10 |
| Calmar ratioReturn relative to maximum drawdown | 1.36 | 0.95 | +0.41 |
| Martin ratioReturn relative to average drawdown | 4.40 | 3.24 | +1.16 |
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Drawdowns
TBWIX vs. FSOSX - Drawdown Comparison
The maximum TBWIX drawdown since its inception was -40.11%, which is greater than FSOSX's maximum drawdown of -35.36%. Use the drawdown chart below to compare losses from any high point for TBWIX and FSOSX.
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Drawdown Indicators
| TBWIX | FSOSX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -40.11% | -35.36% | -4.75% |
Max Drawdown (1Y)Largest decline over 1 year | -12.01% | -12.39% | +0.38% |
Max Drawdown (3Y)Largest decline over 3 years | -12.49% | -14.07% | +1.58% |
Max Drawdown (5Y)Largest decline over 5 years | -40.11% | -35.36% | -4.75% |
Max Drawdown (10Y)Largest decline over 10 years | -40.11% | — | — |
Current DrawdownCurrent decline from peak | 0.00% | -2.56% | +2.56% |
Average DrawdownAverage peak-to-trough decline | -10.11% | -7.67% | -2.44% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.71% | 3.65% | +0.06% |
Volatility
TBWIX vs. FSOSX - Volatility Comparison
The current volatility for Thornburg Better World International Fund (TBWIX) is 3.04%, while Fidelity Series Overseas Fund (FSOSX) has a volatility of 6.08%. This indicates that TBWIX experiences smaller price fluctuations and is considered to be less risky than FSOSX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| TBWIX | FSOSX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 3.04% | 6.08% | -3.04% |
Volatility (6M)Calculated over the trailing 6-month period | 10.56% | 16.57% | -6.01% |
Volatility (1Y)Calculated over the trailing 1-year period | 13.15% | 18.58% | -5.43% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 17.23% | 18.06% | -0.83% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 16.78% | 19.14% | -2.36% |
TBWIX vs. FSOSX - Expense Ratio Comparison
TBWIX has a 1.21% expense ratio, which is higher than FSOSX's 0.01% expense ratio.
Dividends
TBWIX vs. FSOSX - Dividend Comparison
TBWIX's dividend yield for the trailing twelve months is around 1.42%, less than FSOSX's 8.55% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|---|---|---|---|---|---|---|---|---|---|---|---|
FSOSX Fidelity Series Overseas Fund | 8.55% | 9.15% | 2.25% | 1.63% | 1.80% | 2.92% | 1.12% | 0.37% | 0.00% | 0.00% | 0.00% |
TBWIX Thornburg Better World International Fund | 1.42% | 1.53% | 1.40% | 1.55% | 0.87% | 15.10% | 0.40% | 1.17% | 10.14% | 3.53% | 5.99% |
Frequently Asked Questions
TBWIX and FSOSX have a correlation of 0.77, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
FSOSX has higher volatility (6.08%) compared to TBWIX (3.04%). In terms of maximum drawdown, TBWIX dropped -40.11% vs FSOSX's -35.36%.
TBWIX currently has the higher Sharpe Ratio (1.25 vs 0.64), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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