VWIAX vs. DGTSX
VWIAX (Vanguard Wellesley Income Fund Admiral Shares) and DGTSX (DFA Global Allocation 25/75 Portfolio) are both Diversified Portfolio funds. Over the past 10 years, VWIAX returned 5.88%/yr vs 5.28%/yr for DGTSX. Their correlation of 0.82 suggests significant overlap in exposure. VWIAX charges 0.16%/yr vs 0.24%/yr for DGTSX.
Performance
VWIAX vs. DGTSX - Performance Comparison
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Returns By Period
In the year-to-date period, VWIAX achieves a 3.19% return, which is significantly lower than DGTSX's 4.23% return. Over the past 10 years, VWIAX has outperformed DGTSX with an annualized return of 5.88%, while DGTSX has yielded a comparatively lower 5.28% annualized return.
VWIAX
- 1D
- -0.22%
- 1M
- 0.24%
- YTD
- 3.19%
- 6M
- 3.02%
- 1Y
- 9.79%
- 3Y*
- 8.73%
- 5Y*
- 4.22%
- 10Y*
- 5.88%
DGTSX
- 1D
- -0.07%
- 1M
- 0.69%
- YTD
- 4.23%
- 6M
- 4.08%
- 1Y
- 9.62%
- 3Y*
- 8.40%
- 5Y*
- 5.27%
- 10Y*
- 5.28%
VWIAX vs. DGTSX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
VWIAX Vanguard Wellesley Income Fund Admiral Shares | 3.19% | 11.08% | 5.92% | 7.07% | -9.04% | 8.55% | 8.52% | 16.47% | -2.49% | 9.37% |
DGTSX DFA Global Allocation 25/75 Portfolio | 4.23% | 8.39% | 7.43% | 8.93% | -8.06% | 10.20% | 7.29% | 9.80% | -1.85% | 5.83% |
Correlation
The correlation between VWIAX and DGTSX is 0.79, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.79 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.77 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.81 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.80 |
Correlation (All Time) Calculated using the full available price history since Dec 26, 2003 | 0.82 |
The correlation between VWIAX and DGTSX has been stable across timeframes, ranging from 0.77 to 0.82 - a consistent structural relationship.
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Return for Risk
VWIAX vs. DGTSX — Risk / Return Rank
VWIAX
DGTSX
VWIAX vs. DGTSX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Wellesley Income Fund Admiral Shares (VWIAX) and DFA Global Allocation 25/75 Portfolio (DGTSX). 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.
| VWIAX | DGTSX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.81 | ||
| Sortino ratioReturn per unit of downside risk | -1.30 | ||
| Omega ratioGain probability vs. loss probability | 1.35 | 1.57 | -0.21 |
| Calmar ratioReturn relative to maximum drawdown | 2.47 | 3.76 | -1.29 |
| Martin ratioReturn relative to average drawdown | 9.28 | 16.52 | -7.24 |
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Drawdowns
VWIAX vs. DGTSX - Drawdown Comparison
The maximum VWIAX drawdown since its inception was -21.64%, which is greater than DGTSX's maximum drawdown of -16.71%. Use the drawdown chart below to compare losses from any high point for VWIAX and DGTSX.
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Drawdown Indicators
| VWIAX | DGTSX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -21.64% | -16.71% | -4.93% |
Max Drawdown (1Y)Largest decline over 1 year | -4.15% | -2.64% | -1.51% |
Max Drawdown (3Y)Largest decline over 3 years | -6.96% | -7.46% | +0.50% |
Max Drawdown (5Y)Largest decline over 5 years | -15.26% | -11.26% | -4.00% |
Max Drawdown (10Y)Largest decline over 10 years | -17.41% | -11.26% | -6.15% |
Current DrawdownCurrent decline from peak | -0.57% | -0.20% | -0.37% |
Average DrawdownAverage peak-to-trough decline | -2.21% | -1.64% | -0.57% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.10% | 0.60% | +0.50% |
Volatility
VWIAX vs. DGTSX - Volatility Comparison
Vanguard Wellesley Income Fund Admiral Shares (VWIAX) has a higher volatility of 1.61% compared to DFA Global Allocation 25/75 Portfolio (DGTSX) at 1.38%. This indicates that VWIAX's price experiences larger fluctuations and is considered to be riskier than DGTSX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| VWIAX | DGTSX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.61% | 1.38% | +0.23% |
Volatility (6M)Calculated over the trailing 6-month period | 3.95% | 2.97% | +0.98% |
Volatility (1Y)Calculated over the trailing 1-year period | 5.24% | 3.60% | +1.64% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.99% | 5.98% | +1.01% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 6.94% | 5.24% | +1.70% |
VWIAX vs. DGTSX - Expense Ratio Comparison
VWIAX has a 0.16% expense ratio, which is lower than DGTSX's 0.24% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Dividends
VWIAX vs. DGTSX - Dividend Comparison
VWIAX's dividend yield for the trailing twelve months is around 7.87%, more than DGTSX's 5.70% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
DGTSX DFA Global Allocation 25/75 Portfolio | 5.70% | 5.54% | 7.28% | 4.75% | 2.77% | 7.62% | 2.12% | 2.57% | 2.99% | 1.25% | 1.26% | 1.50% |
VWIAX Vanguard Wellesley Income Fund Admiral Shares | 7.87% | 7.93% | 6.69% | 4.80% | 7.75% | 6.11% | 4.37% | 4.00% | 7.64% | 3.25% | 4.07% | 5.66% |
Frequently Asked Questions
VWIAX and DGTSX have a correlation of 0.79, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
VWIAX has higher volatility (1.61%) compared to DGTSX (1.38%). In terms of maximum drawdown, VWIAX dropped -21.64% vs DGTSX's -16.71%.
DGTSX currently has the higher Sharpe Ratio (2.77 vs 1.96), 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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