LUBYX vs. MUIIX

Last updated Jun 26, 2026

LUBYX (Lord Abbett Ultra Short Bond Fund) and MUIIX (Morgan Stanley Institutional Fund Trust Ultra-Short Income Portfolio) are both Ultrashort Bond funds. Over the past 5 years, LUBYX returned 3.41%/yr vs 3.23%/yr for MUIIX. At a 0.28 correlation, their price movements are largely independent. LUBYX charges 0.28%/yr vs 0.35%/yr for MUIIX.

Performance

LUBYX vs. MUIIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Lord Abbett Ultra Short Bond Fund (LUBYX) and Morgan Stanley Institutional Fund Trust Ultra-Short Income Portfolio (MUIIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, LUBYX achieves a 1.34% return, which is significantly lower than MUIIX's 1.47% return.

LUBYX

• 1D: 0.00%
• 1M: 0.24%
• YTD: 1.34%
• 6M: 1.71%
• 1Y: 4.30%
• 3Y*: 5.26%
• 5Y*: 3.41%
• 10Y*: —

MUIIX

• 1D: 0.00%
• 1M: 0.22%
• YTD: 1.47%
• 6M: 1.81%
• 1Y: 4.02%
• 3Y*: 4.55%
• 5Y*: 3.23%
• 10Y*: —

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

LUBYX vs. MUIIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
LUBYX Lord Abbett Ultra Short Bond Fund	1.34%	4.99%	5.70%	5.60%	-0.38%	0.07%	2.40%
MUIIX Morgan Stanley Institutional Fund Trust Ultra-Short Income Portfolio	1.47%	4.47%	4.94%	4.17%	1.10%	0.10%	0.49%

Correlation

The correlation between LUBYX and MUIIX is 0.61, 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	0.61
Correlation (3Y) Calculated over the trailing 3-year period	0.35
Correlation (5Y) Calculated over the trailing 5-year period	0.27
Correlation (All Time) Calculated using the full available price history since Apr 7, 2020	0.28

Over the past year, LUBYX and MUIIX have become more correlated (0.61) than their long-term average of 0.28, meaning their price movements have been converging.

Return for Risk

LUBYX vs. MUIIX — Risk / Return Rank

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

LUBYX

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

MUIIX

MUIIX Risk / Return Rank: 99
MUIIX Sharpe Ratio Rank: 98
MUIIX Sortino Ratio Rank: 100
MUIIX Omega Ratio Rank: 100
MUIIX Calmar Ratio Rank: 100
MUIIX 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.

LUBYX vs. MUIIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Lord Abbett Ultra Short Bond Fund (LUBYX) and Morgan Stanley Institutional Fund Trust Ultra-Short Income Portfolio (MUIIX). 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.

	LUBYX	MUIIX	Difference
Sharpe ratio: Return per unit of total volatility	3.13	3.38	-0.25
Sortino ratio: Return per unit of downside risk	10.00	16.12	-6.12
Omega ratio: Gain probability vs. loss probability	3.35	7.57	-4.22
Calmar ratio: Return relative to maximum drawdown	10.85	40.28	-29.43
Martin ratio: Return relative to average drawdown	49.98	106.36	-56.38

LUBYX vs. MUIIX - Sharpe Ratio Comparison

The current LUBYX Sharpe Ratio is 3.13, which is comparable to the MUIIX Sharpe Ratio of 3.38. The chart below compares the historical Sharpe Ratios of LUBYX and MUIIX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

LUBYX vs. MUIIX - Drawdown Comparison

The maximum LUBYX drawdown since its inception was -2.59%, which is greater than MUIIX's maximum drawdown of -1.20%. Use the drawdown chart below to compare losses from any high point for LUBYX and MUIIX.

Drawdown Indicators

	LUBYX	MUIIX	Difference
Max Drawdown Largest peak-to-trough decline	-2.59%	-1.20%	-1.39%
Max Drawdown (1Y) Largest decline over 1 year	-0.40%	-0.10%	-0.30%
Max Drawdown (3Y) Largest decline over 3 years	-0.50%	-1.20%	+0.70%
Max Drawdown (5Y) Largest decline over 5 years	-1.86%	-1.20%	-0.66%
Current Drawdown Current decline from peak	-0.10%	-0.10%	0.00%
Average Drawdown Average peak-to-trough decline	-0.17%	-0.06%	-0.11%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.09%	0.04%	+0.05%

Volatility

LUBYX vs. MUIIX - Volatility Comparison

Lord Abbett Ultra Short Bond Fund (LUBYX) and Morgan Stanley Institutional Fund Trust Ultra-Short Income Portfolio (MUIIX) have volatilities of 0.40% and 0.40%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	LUBYX	MUIIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.40%	0.40%	0.00%
Volatility (6M) Calculated over the trailing 6-month period	0.96%	0.82%	+0.14%
Volatility (1Y) Calculated over the trailing 1-year period	1.38%	1.20%	+0.18%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	1.38%	1.59%	-0.21%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	1.12%	1.43%	-0.31%

LUBYX vs. MUIIX - Expense Ratio Comparison

LUBYX has a 0.28% expense ratio, which is lower than MUIIX's 0.35% expense ratio.

Dividends

LUBYX vs. MUIIX - Dividend Comparison

LUBYX's dividend yield for the trailing twelve months is around 4.41%, more than MUIIX's 4.03% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
LUBYX Lord Abbett Ultra Short Bond Fund	4.41%	4.66%	4.72%	4.10%	1.33%	0.57%	1.16%	2.55%	2.27%	0.52%
MUIIX Morgan Stanley Institutional Fund Trust Ultra-Short Income Portfolio	4.03%	4.36%	4.81%	3.88%	1.20%	0.10%	0.39%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both LUBYX and MUIIX in my portfolio?

LUBYX and MUIIX have a correlation of 0.61, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, LUBYX or MUIIX?

MUIIX has higher volatility (0.40%) compared to LUBYX (0.40%). In terms of maximum drawdown, LUBYX dropped -2.59% vs MUIIX's -1.20%.

Which has better risk-adjusted returns?

MUIIX currently has the higher Sharpe Ratio (3.38 vs 3.13), 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.