THOPX vs. DFAIX
Compare and contrast key facts about Thompson Bond Fund (THOPX) and DFA Short-Duration Real Return Portfolio (DFAIX).
THOPX is managed by Thompson IM. It was launched on Feb 10, 1992. DFAIX is managed by Dimensional. It was launched on Nov 5, 2013.
Performance
THOPX vs. DFAIX - Performance Comparison
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THOPX vs. DFAIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
THOPX Thompson Bond Fund | 0.09% | 7.98% | 11.54% | 6.98% | -7.28% | 5.75% | -1.71% | 5.56% | 1.80% | 4.75% |
DFAIX DFA Short-Duration Real Return Portfolio | 0.86% | 4.86% | 6.38% | 5.64% | -2.77% | 5.40% | 2.75% | 5.63% | 0.11% | 1.71% |
Returns By Period
In the year-to-date period, THOPX achieves a 0.09% return, which is significantly lower than DFAIX's 0.86% return. Over the past 10 years, THOPX has outperformed DFAIX with an annualized return of 4.39%, while DFAIX has yielded a comparatively lower 3.20% annualized return.
THOPX
- 1D
- 0.29%
- 1M
- -1.20%
- YTD
- 0.09%
- 6M
- 1.68%
- 1Y
- 5.54%
- 3Y*
- 8.48%
- 5Y*
- 4.13%
- 10Y*
- 4.39%
DFAIX
- 1D
- 0.19%
- 1M
- -0.09%
- YTD
- 0.86%
- 6M
- 1.22%
- 1Y
- 3.68%
- 3Y*
- 5.27%
- 5Y*
- 3.82%
- 10Y*
- 3.20%
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THOPX vs. DFAIX - Expense Ratio Comparison
THOPX has a 0.71% expense ratio, which is higher than DFAIX's 0.22% expense ratio.
Return for Risk
THOPX vs. DFAIX — Risk / Return Rank
THOPX
DFAIX
THOPX vs. DFAIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Thompson Bond Fund (THOPX) and DFA Short-Duration Real Return Portfolio (DFAIX). 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.
| THOPX | DFAIX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 2.67 | 3.57 | -0.90 |
Sortino ratioReturn per unit of downside risk | 3.79 | 5.96 | -2.17 |
Omega ratioGain probability vs. loss probability | 1.58 | 2.07 | -0.49 |
Calmar ratioReturn relative to maximum drawdown | 3.56 | 8.64 | -5.08 |
Martin ratioReturn relative to average drawdown | 14.40 | 34.01 | -19.62 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| THOPX | DFAIX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 2.67 | 3.57 | -0.90 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 1.95 | 1.21 | +0.75 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 2.00 | 1.26 | +0.74 |
Sharpe Ratio (All Time)Calculated using the full available price history | 1.25 | 1.08 | +0.16 |
Correlation
The correlation between THOPX and DFAIX is 0.27, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.
Dividends
THOPX vs. DFAIX - Dividend Comparison
THOPX's dividend yield for the trailing twelve months is around 5.15%, more than DFAIX's 4.61% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
THOPX Thompson Bond Fund | 5.15% | 4.90% | 5.34% | 5.88% | 3.93% | 3.59% | 5.16% | 3.48% | 3.07% | 3.06% | 4.24% | 4.58% |
DFAIX DFA Short-Duration Real Return Portfolio | 4.61% | 4.65% | 4.14% | 3.66% | 1.68% | 0.98% | 0.82% | 2.53% | 2.72% | 1.71% | 1.41% | 1.29% |
Drawdowns
THOPX vs. DFAIX - Drawdown Comparison
The maximum THOPX drawdown since its inception was -19.45%, which is greater than DFAIX's maximum drawdown of -5.63%. Use the drawdown chart below to compare losses from any high point for THOPX and DFAIX.
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Drawdown Indicators
| THOPX | DFAIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -19.45% | -5.63% | -13.82% |
Max Drawdown (1Y)Largest decline over 1 year | -1.61% | -0.47% | -1.14% |
Max Drawdown (5Y)Largest decline over 5 years | -8.00% | -5.46% | -2.54% |
Max Drawdown (10Y)Largest decline over 10 years | -11.74% | -5.63% | -6.11% |
Current DrawdownCurrent decline from peak | -1.20% | -0.28% | -0.92% |
Average DrawdownAverage peak-to-trough decline | -1.87% | -0.95% | -0.92% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.40% | 0.12% | +0.28% |
Volatility
THOPX vs. DFAIX - Volatility Comparison
Thompson Bond Fund (THOPX) has a higher volatility of 0.83% compared to DFA Short-Duration Real Return Portfolio (DFAIX) at 0.50%. This indicates that THOPX's price experiences larger fluctuations and is considered to be riskier than DFAIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| THOPX | DFAIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.83% | 0.50% | +0.33% |
Volatility (6M)Calculated over the trailing 6-month period | 1.36% | 0.75% | +0.61% |
Volatility (1Y)Calculated over the trailing 1-year period | 2.09% | 1.07% | +1.02% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 2.12% | 3.18% | -1.06% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 2.20% | 2.56% | -0.36% |