DFIHX vs. USIAX

Last updated Jun 4, 2026

DFIHX (DFA One Year Fixed Income Portfolio) and USIAX (UBS Ultra Short Income Fund) are both Ultrashort Bond funds. With a 1.00 correlation, they move nearly in lockstep. DFIHX charges 0.13%/yr vs 0.35%/yr for USIAX.

Performance

DFIHX vs. USIAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in DFA One Year Fixed Income Portfolio (DFIHX) and UBS Ultra Short Income Fund (USIAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

DFIHX

• 1D: 0.00%
• 1M: 0.30%
• YTD: 1.52%
• 6M: 1.83%
• 1Y: 3.65%
• 3Y*: 4.46%
• 5Y*: 2.76%
• 10Y*: 1.98%

USIAX

• 1D: 0.00%
• 1M: —
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

DFIHX vs. USIAX - Yearly Performance Comparison

	2026 (YTD)
DFIHX DFA One Year Fixed Income Portfolio	0.10%
USIAX UBS Ultra Short Income Fund	0.32%

Correlation

The correlation between DFIHX and USIAX is 1.00 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (All Time) Calculated using the full available price history since May 29, 2026	1.00

Return for Risk

DFIHX vs. USIAX — Risk / Return Rank

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

DFIHX

DFIHX Risk / Return Rank: 99
DFIHX Sharpe Ratio Rank: 99
DFIHX Sortino Ratio Rank: 99
DFIHX Omega Ratio Rank: 100
DFIHX Calmar Ratio Rank: 98
DFIHX Martin Ratio Rank: 99

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.

DFIHX vs. USIAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for DFA One Year Fixed Income Portfolio (DFIHX) and UBS Ultra Short Income Fund (USIAX). 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.

	DFIHX	USIAX	Difference
Sharpe ratio: Return per unit of total volatility	5.17	—	—
Sortino ratio: Return per unit of downside risk	8.94	—	—
Omega ratio: Gain probability vs. loss probability	7.53	—	—
Calmar ratio: Return relative to maximum drawdown	9.49	—	—
Martin ratio: Return relative to average drawdown	57.84	—	—
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

Sharpe Ratios by Period

	DFIHX	USIAX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	5.17	—	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	2.78	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	2.50	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.52	12.88	-11.36

Drawdowns

DFIHX vs. USIAX - Drawdown Comparison

The maximum DFIHX drawdown since its inception was -2.53%, which is greater than USIAX's maximum drawdown of 0.00%. Use the drawdown chart below to compare losses from any high point for DFIHX and USIAX.

Drawdown Indicators

	DFIHX	USIAX	Difference
Max Drawdown Largest peak-to-trough decline	-2.53%	0.00%	-2.53%
Max Drawdown (1Y) Largest decline over 1 year	-0.39%	—	—
Max Drawdown (3Y) Largest decline over 3 years	-0.49%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-2.26%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-2.26%	—	—
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-0.15%	0.00%	-0.15%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.06%	—	—

Volatility

Volatility by Period

	DFIHX	USIAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.16%	—	—
Volatility (6M) Calculated over the trailing 6-month period	0.43%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	0.72%	2.98%	-2.26%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	1.00%	2.98%	-1.98%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	0.80%	2.98%	-2.18%

DFIHX vs. USIAX - Expense Ratio Comparison

DFIHX has a 0.13% expense ratio, which is lower than USIAX's 0.35% expense ratio.

Dividends

DFIHX vs. USIAX - Dividend Comparison

DFIHX's dividend yield for the trailing twelve months is around 3.58%, more than USIAX's 0.32% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DFIHX DFA One Year Fixed Income Portfolio	3.58%	3.26%	4.99%	3.37%	1.07%	0.00%	0.62%	2.12%	1.85%	1.13%	0.66%	0.51%
USIAX UBS Ultra Short Income Fund	0.32%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both DFIHX and USIAX in my portfolio?

With a correlation of 1.00, DFIHX and USIAX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.