DFTIX vs. VWIUX

Last updated Jun 3, 2026

DFTIX (DFA Intermediate-Term Municipal Bond Portfolio) and VWIUX (Vanguard Intermediate-Term Tax-Exempt Fund Admiral Shares) are both Municipal Bonds funds. Over the past 10 years, DFTIX returned 1.56%/yr vs 2.46%/yr for VWIUX. A 0.75 correlation means they provide meaningful diversification when combined. DFTIX charges 0.20%/yr vs 0.09%/yr for VWIUX.

Performance

DFTIX vs. VWIUX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in DFA Intermediate-Term Municipal Bond Portfolio (DFTIX) and Vanguard Intermediate-Term Tax-Exempt Fund Admiral Shares (VWIUX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, DFTIX achieves a 1.08% return, which is significantly lower than VWIUX's 1.19% return. Over the past 10 years, DFTIX has underperformed VWIUX with an annualized return of 1.56%, while VWIUX has yielded a comparatively higher 2.46% annualized return.

DFTIX

• 1D: 0.00%
• 1M: 0.23%
• YTD: 1.08%
• 6M: 1.53%
• 1Y: 5.01%
• 3Y*: 3.20%
• 5Y*: 1.22%
• 10Y*: 1.56%

VWIUX

• 1D: 0.00%
• 1M: 0.43%
• YTD: 1.19%
• 6M: 1.69%
• 1Y: 6.83%
• 3Y*: 4.51%
• 5Y*: 1.69%
• 10Y*: 2.46%

*Multi-year figures are annualized to reflect compound growth (CAGR)

DFTIX vs. VWIUX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
DFTIX DFA Intermediate-Term Municipal Bond Portfolio	1.08%	3.70%	1.12%	4.29%	-3.69%	-0.50%	3.66%	4.59%	1.34%	2.14%
VWIUX Vanguard Intermediate-Term Tax-Exempt Fund Admiral Shares	1.19%	5.99%	2.34%	5.90%	-6.83%	0.81%	5.23%	7.10%	1.34%	4.65%

Correlation

The correlation between DFTIX and VWIUX is 0.67, 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	0.67
Correlation (3Y) Calculated over the trailing 3-year period	0.78
Correlation (5Y) Calculated over the trailing 5-year period	0.79
Correlation (10Y) Calculated over the trailing 10-year period	0.74
Correlation (All Time) Calculated using the full available price history since Aug 6, 2012	0.75

The correlation between DFTIX and VWIUX shifts across timeframes, from 0.67 (1 year) to 0.79 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

DFTIX vs. VWIUX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

DFTIX

DFTIX Risk / Return Rank: 75
DFTIX Sharpe Ratio Rank: 91
DFTIX Sortino Ratio Rank: 93
DFTIX Omega Ratio Rank: 97
DFTIX Calmar Ratio Rank: 48
DFTIX Martin Ratio Rank: 44

VWIUX

VWIUX Risk / Return Rank: 68
VWIUX Sharpe Ratio Rank: 88
VWIUX Sortino Ratio Rank: 91
VWIUX Omega Ratio Rank: 94
VWIUX Calmar Ratio Rank: 36
VWIUX Martin Ratio Rank: 33

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

DFTIX vs. VWIUX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for DFA Intermediate-Term Municipal Bond Portfolio (DFTIX) and Vanguard Intermediate-Term Tax-Exempt Fund Admiral Shares (VWIUX). 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.

	DFTIX	VWIUX	Difference
Sharpe ratio Return per unit of total volatility	3.06	2.85	+0.21
Sortino ratio Return per unit of downside risk	4.80	4.56	+0.24
Omega ratio Gain probability vs. loss probability	1.95	1.76	+0.19
Calmar ratio Return relative to maximum drawdown	2.67	2.30	+0.37
Martin ratio Return relative to average drawdown	9.26	7.70	+1.56
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

DFTIX vs. VWIUX - Sharpe Ratio Comparison

The current DFTIX Sharpe Ratio is 3.06, which is comparable to the VWIUX Sharpe Ratio of 2.85. The chart below compares the historical Sharpe Ratios of DFTIX and VWIUX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	DFTIX	VWIUX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	3.06	2.85	+0.21
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.55	0.52	+0.03
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.64	0.72	-0.08
Sharpe Ratio (All Time) Calculated using the full available price history	0.73	1.13	-0.39

Drawdowns

DFTIX vs. VWIUX - Drawdown Comparison

The maximum DFTIX drawdown since its inception was -8.02%, smaller than the maximum VWIUX drawdown of -11.38%. Use the drawdown chart below to compare losses from any high point for DFTIX and VWIUX.

Drawdown Indicators

	DFTIX	VWIUX	Difference
Max Drawdown Largest peak-to-trough decline	-8.02%	-11.38%	+3.36%
Max Drawdown (1Y) Largest decline over 1 year	-1.85%	-2.99%	+1.14%
Max Drawdown (3Y) Largest decline over 3 years	-3.08%	-4.40%	+1.32%
Max Drawdown (5Y) Largest decline over 5 years	-7.09%	-11.38%	+4.29%
Max Drawdown (10Y) Largest decline over 10 years	-8.02%	-11.38%	+3.36%
Current Drawdown Current decline from peak	-0.63%	-1.02%	+0.39%
Average Drawdown Average peak-to-trough decline	-1.31%	-1.44%	+0.13%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.53%	0.89%	-0.36%

Volatility

DFTIX vs. VWIUX - Volatility Comparison

The current volatility for DFA Intermediate-Term Municipal Bond Portfolio (DFTIX) is 0.56%, while Vanguard Intermediate-Term Tax-Exempt Fund Admiral Shares (VWIUX) has a volatility of 0.88%. This indicates that DFTIX experiences smaller price fluctuations and is considered to be less risky than VWIUX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	DFTIX	VWIUX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.56%	0.88%	-0.32%
Volatility (6M) Calculated over the trailing 6-month period	1.26%	1.88%	-0.62%
Volatility (1Y) Calculated over the trailing 1-year period	1.62%	2.35%	-0.73%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	2.22%	3.27%	-1.05%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	2.44%	3.43%	-0.99%

DFTIX vs. VWIUX - Expense Ratio Comparison

DFTIX has a 0.20% expense ratio, which is higher than VWIUX's 0.09% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

DFTIX vs. VWIUX - Dividend Comparison

DFTIX's dividend yield for the trailing twelve months is around 2.78%, less than VWIUX's 3.33% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DFTIX DFA Intermediate-Term Municipal Bond Portfolio	2.78%	2.32%	2.22%	1.76%	1.47%	1.31%	1.49%	1.55%	1.52%	1.33%	1.36%	1.47%
VWIUX Vanguard Intermediate-Term Tax-Exempt Fund Admiral Shares	3.33%	4.06%	3.63%	2.78%	2.51%	1.89%	2.40%	2.88%	2.89%	2.82%	2.91%	2.96%

Frequently Asked Questions

Can I hold both DFTIX and VWIUX in my portfolio?

DFTIX and VWIUX have a correlation of 0.67, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, DFTIX or VWIUX?

VWIUX has higher volatility (0.88%) compared to DFTIX (0.56%). In terms of maximum drawdown, DFTIX dropped -8.02% vs VWIUX's -11.38%.

Which has better risk-adjusted returns?

DFTIX currently has the higher Sharpe Ratio (3.06 vs 2.85), 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.