DUSB vs. BOXX

Last updated Apr 1, 2026

Compare and contrast key facts about Dimensional Ultrashort Fixed Income ETF (DUSB) and Alpha Architect 1-3 Month Box ETF (BOXX).

DUSB and BOXX are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. DUSB is an actively managed fund by Dimensional. It was launched on Sep 26, 2023. BOXX is a passively managed fund by Alpha Architect that tracks the performance of the Solactive 1-3 Month US T-Bill Index. It was launched on Dec 27, 2022.

Performance

DUSB vs. BOXX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Dimensional Ultrashort Fixed Income ETF (DUSB) and Alpha Architect 1-3 Month Box ETF (BOXX). The values are adjusted to include any dividend payments, if applicable.

DUSB vs. BOXX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
DUSB Dimensional Ultrashort Fixed Income ETF	0.88%	4.53%	5.60%	1.79%
BOXX Alpha Architect 1-3 Month Box ETF	1.03%	4.37%	5.16%	1.49%

Returns By Period

In the year-to-date period, DUSB achieves a 0.88% return, which is significantly lower than BOXX's 1.03% return.

DUSB

• 1D: 0.08%
• 1M: 0.28%
• YTD: 0.88%
• 6M: 1.92%
• 1Y: 4.28%
• 3Y*: —
• 5Y*: —
• 10Y*: —

BOXX

• 1D: 0.11%
• 1M: 0.40%
• YTD: 1.03%
• 6M: 2.13%
• 1Y: 4.31%
• 3Y*: 4.83%
• 5Y*: —
• 10Y*: —

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

DUSB vs. BOXX - Expense Ratio Comparison

DUSB has a 0.15% expense ratio, which is lower than BOXX's 0.19% 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%.

BOXX

Alpha Architect 1-3 Month Box ETF

DUSB

Dimensional Ultrashort Fixed Income ETF

Return for Risk

DUSB vs. BOXX — Risk / Return Rank

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

DUSB

DUSB Risk / Return Rank: 99
DUSB Sharpe Ratio Rank: 99
DUSB Sortino Ratio Rank: 99
DUSB Omega Ratio Rank: 99
DUSB Calmar Ratio Rank: 99
DUSB Martin Ratio Rank: 99

BOXX

BOXX Risk / Return Rank: 100
BOXX Sharpe Ratio Rank: 100
BOXX Sortino Ratio Rank: 100
BOXX Omega Ratio Rank: 100
BOXX Calmar Ratio Rank: 100
BOXX Martin Ratio Rank: 100

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.

DUSB vs. BOXX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Dimensional Ultrashort Fixed Income ETF (DUSB) and Alpha Architect 1-3 Month Box ETF (BOXX). 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.

	DUSB	BOXX	Difference
Sharpe ratio Return per unit of total volatility	8.00	13.56	-5.57
Sortino ratio Return per unit of downside risk	14.78	47.23	-32.45
Omega ratio Gain probability vs. loss probability	3.84	10.69	-6.85
Calmar ratio Return relative to maximum drawdown	15.07	120.87	-105.79
Martin ratio Return relative to average drawdown	127.12	720.99	-593.87
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

DUSB vs. BOXX - Sharpe Ratio Comparison

The current DUSB Sharpe Ratio is 8.00, which is lower than the BOXX Sharpe Ratio of 13.56. The chart below compares the historical Sharpe Ratios of DUSB and BOXX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	DUSB	BOXX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	8.00	13.56	-5.57
Sharpe Ratio (All Time) Calculated using the full available price history	9.79	13.15	-3.35

Correlation

The correlation between DUSB and BOXX is 0.09, 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

DUSB vs. BOXX - Dividend Comparison

DUSB's dividend yield for the trailing twelve months is around 4.23%, while BOXX has not paid dividends to shareholders.

	TTM	2025	2024	2023
DUSB Dimensional Ultrashort Fixed Income ETF	4.23%	4.32%	4.92%	1.23%
BOXX Alpha Architect 1-3 Month Box ETF	0.00%	0.00%	0.26%	0.00%

Drawdowns

DUSB vs. BOXX - Drawdown Comparison

The maximum DUSB drawdown since its inception was -0.29%, which is greater than BOXX's maximum drawdown of -0.12%. Use the drawdown chart below to compare losses from any high point for DUSB and BOXX.

Drawdown Indicators

	DUSB	BOXX	Difference
Max Drawdown Largest peak-to-trough decline	-0.29%	-0.12%	-0.17%
Max Drawdown (1Y) Largest decline over 1 year	-0.29%	-0.04%	-0.25%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-0.01%	0.00%	-0.01%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.03%	0.01%	+0.02%

Volatility

DUSB vs. BOXX - Volatility Comparison

Dimensional Ultrashort Fixed Income ETF (DUSB) has a higher volatility of 0.14% compared to Alpha Architect 1-3 Month Box ETF (BOXX) at 0.13%. This indicates that DUSB's price experiences larger fluctuations and is considered to be riskier than BOXX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	DUSB	BOXX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.14%	0.13%	+0.01%
Volatility (6M) Calculated over the trailing 6-month period	0.33%	0.24%	+0.09%
Volatility (1Y) Calculated over the trailing 1-year period	0.54%	0.32%	+0.22%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	0.53%	0.37%	+0.16%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	0.53%	0.37%	+0.16%