USIAX vs. NUSIX

Last updated Apr 1, 2026

Compare and contrast key facts about UBS Ultra Short Income Fund (USIAX) and Navigator Ultra Short Term Bond Fund (NUSIX).

USIAX is managed by UBS. It was launched on May 29, 2018. NUSIX is managed by Navigator Funds. It was launched on Mar 21, 2019.

Performance

USIAX vs. NUSIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in UBS Ultra Short Income Fund (USIAX) and Navigator Ultra Short Term Bond Fund (NUSIX). The values are adjusted to include any dividend payments, if applicable.

USIAX vs. NUSIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
USIAX UBS Ultra Short Income Fund	0.13%	4.54%	5.35%	4.47%	-0.38%	-0.18%	0.84%	1.08%
NUSIX Navigator Ultra Short Term Bond Fund	0.76%	4.63%	5.54%	5.64%	1.14%	0.36%	1.49%	1.60%

Returns By Period

In the year-to-date period, USIAX achieves a 0.13% return, which is significantly lower than NUSIX's 0.76% return.

USIAX

• 1D: 0.00%
• 1M: -0.20%
• YTD: 0.13%
• 6M: 1.10%
• 1Y: 3.49%
• 3Y*: 4.57%
• 5Y*: 2.77%
• 10Y*: —

NUSIX

• 1D: 0.06%
• 1M: 0.16%
• YTD: 0.76%
• 6M: 1.88%
• 1Y: 4.27%
• 3Y*: 5.11%
• 5Y*: 3.54%
• 10Y*: —

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

USIAX vs. NUSIX - Expense Ratio Comparison

USIAX has a 0.35% expense ratio, which is lower than NUSIX's 0.71% expense ratio.

NUSIX

Navigator Ultra Short Term Bond Fund

USIAX

UBS Ultra Short Income Fund

Return for Risk

USIAX vs. NUSIX — Risk / Return Rank

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

USIAX

USIAX Risk / Return Rank: 98
USIAX Sharpe Ratio Rank: 97
USIAX Sortino Ratio Rank: 98
USIAX Omega Ratio Rank: 99
USIAX Calmar Ratio Rank: 98
USIAX Martin Ratio Rank: 99

NUSIX

NUSIX Risk / Return Rank: 100
NUSIX Sharpe Ratio Rank: 100
NUSIX Sortino Ratio Rank: 100
NUSIX Omega Ratio Rank: 100
NUSIX Calmar Ratio Rank: 100
NUSIX 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.

USIAX vs. NUSIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for UBS Ultra Short Income Fund (USIAX) and Navigator Ultra Short Term Bond Fund (NUSIX). 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.

	USIAX	NUSIX	Difference
Sharpe ratio Return per unit of total volatility	2.57	6.58	-4.01
Sortino ratio Return per unit of downside risk	5.39	20.79	-15.40
Omega ratio Gain probability vs. loss probability	3.22	10.67	-7.45
Calmar ratio Return relative to maximum drawdown	4.91	43.05	-38.14
Martin ratio Return relative to average drawdown	47.04	277.18	-230.13
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

USIAX vs. NUSIX - Sharpe Ratio Comparison

The current USIAX Sharpe Ratio is 2.57, which is lower than the NUSIX Sharpe Ratio of 6.58. The chart below compares the historical Sharpe Ratios of USIAX and NUSIX, 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

	USIAX	NUSIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.57	6.58	-4.01
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.50	4.68	-4.18
Sharpe Ratio (All Time) Calculated using the full available price history	0.46	3.67	-3.21

Correlation

The correlation between USIAX and NUSIX is 0.13, 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

USIAX vs. NUSIX - Dividend Comparison

USIAX's dividend yield for the trailing twelve months is around 3.63%, less than NUSIX's 4.20% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019
USIAX UBS Ultra Short Income Fund	3.63%	4.43%	5.10%	3.74%	1.44%	0.12%	0.93%	1.07%
NUSIX Navigator Ultra Short Term Bond Fund	4.20%	4.25%	5.23%	4.92%	1.74%	0.66%	1.08%	1.99%

Drawdowns

USIAX vs. NUSIX - Drawdown Comparison

The maximum USIAX drawdown since its inception was -4.88%, which is greater than NUSIX's maximum drawdown of -2.69%. Use the drawdown chart below to compare losses from any high point for USIAX and NUSIX.

Drawdown Indicators

	USIAX	NUSIX	Difference
Max Drawdown Largest peak-to-trough decline	-4.88%	-2.69%	-2.19%
Max Drawdown (1Y) Largest decline over 1 year	-0.81%	-0.10%	-0.71%
Max Drawdown (5Y) Largest decline over 5 years	-4.88%	-0.80%	-4.08%
Current Drawdown Current decline from peak	-0.20%	0.00%	-0.20%
Average Drawdown Average peak-to-trough decline	-0.22%	-0.08%	-0.14%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.08%	0.02%	+0.06%

Volatility

USIAX vs. NUSIX - Volatility Comparison

The current volatility for UBS Ultra Short Income Fund (USIAX) is 0.14%, while Navigator Ultra Short Term Bond Fund (NUSIX) has a volatility of 0.18%. This indicates that USIAX experiences smaller price fluctuations and is considered to be less risky than NUSIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	USIAX	NUSIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.14%	0.18%	-0.04%
Volatility (6M) Calculated over the trailing 6-month period	0.86%	0.44%	+0.42%
Volatility (1Y) Calculated over the trailing 1-year period	1.65%	0.65%	+1.00%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.63%	0.76%	+4.87%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.50%	0.83%	+3.67%