LUBYX vs. LLDYX

Last updated Jun 5, 2026

LUBYX (Lord Abbett Ultra Short Bond Fund) and LLDYX (Lord Abbett Short Duration Income Fund) are both mutual funds - LUBYX is a Ultrashort Bond fund managed by Lord Abbett, while LLDYX is a Total Bond Market fund managed by Lord Abbett. Over the past 5 years, LUBYX returned 3.35%/yr vs 2.33%/yr for LLDYX. A 0.52 correlation means they provide meaningful diversification when combined. LUBYX charges 0.28%/yr vs 0.38%/yr for LLDYX.

Performance

LUBYX vs. LLDYX - Performance Comparison

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

Returns By Period

In the year-to-date period, LUBYX achieves a 1.44% return, which is significantly higher than LLDYX's 0.78% return.

LUBYX

• 1D: 0.00%
• 1M: 0.34%
• YTD: 1.44%
• 6M: 1.81%
• 1Y: 4.40%
• 3Y*: 5.15%
• 5Y*: 3.35%
• 10Y*: —

LLDYX

• 1D: 0.00%
• 1M: 0.16%
• YTD: 0.78%
• 6M: 1.21%
• 1Y: 4.44%
• 3Y*: 5.19%
• 5Y*: 2.33%
• 10Y*: 2.72%

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

LUBYX vs. LLDYX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
LUBYX Lord Abbett Ultra Short Bond Fund	1.44%	4.99%	5.70%	5.16%	-0.38%	0.07%	1.27%	3.00%	2.09%	0.73%
LLDYX Lord Abbett Short Duration Income Fund	0.78%	6.19%	5.13%	5.41%	-5.35%	1.07%	3.17%	5.64%	1.47%	2.74%

Correlation

The correlation between LUBYX and LLDYX is 0.50, 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	0.50
Correlation (3Y) Calculated over the trailing 3-year period	0.50
Correlation (5Y) Calculated over the trailing 5-year period	0.53
Correlation (All Time) Calculated using the full available price history since Oct 28, 2016	0.52

The correlation between LUBYX and LLDYX has been stable across timeframes, ranging from 0.50 to 0.53 - a consistent structural relationship.

Return for Risk

LUBYX vs. LLDYX — Risk / Return Rank

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

LUBYX

LUBYX Risk / Return Rank: 98
LUBYX Sharpe Ratio Rank: 94
LUBYX Sortino Ratio Rank: 99
LUBYX Omega Ratio Rank: 99
LUBYX Calmar Ratio Rank: 99
LUBYX Martin Ratio Rank: 99

LLDYX

LLDYX Risk / Return Rank: 69
LLDYX Sharpe Ratio Rank: 41
LLDYX Sortino Ratio Rank: 63
LLDYX Omega Ratio Rank: 89
LLDYX Calmar Ratio Rank: 77
LLDYX Martin Ratio Rank: 74

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. LLDYX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Lord Abbett Ultra Short Bond Fund (LUBYX) and Lord Abbett Short Duration Income Fund (LLDYX). 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.

	LUBYX	LLDYX	Difference
Sharpe ratio: Return per unit of total volatility	3.28	1.86	+1.43
Sortino ratio: Return per unit of downside risk	10.78	3.33	+7.45
Omega ratio: Gain probability vs. loss probability	3.61	1.65	+1.96
Calmar ratio: Return relative to maximum drawdown	11.37	3.47	+7.91
Martin ratio: Return relative to average drawdown	53.56	13.94	+39.62
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

LUBYX vs. LLDYX - Sharpe Ratio Comparison

The current LUBYX Sharpe Ratio is 3.28, which is higher than the LLDYX Sharpe Ratio of 1.86. The chart below compares the historical Sharpe Ratios of LUBYX and LLDYX, 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

	LUBYX	LLDYX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	3.28	1.86	+1.43
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	2.46	0.86	+1.60
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	1.05	—
Sharpe Ratio (All Time) Calculated using the full available price history	2.22	1.09	+1.13

Drawdowns

LUBYX vs. LLDYX - Drawdown Comparison

The maximum LUBYX drawdown since its inception was -2.59%, smaller than the maximum LLDYX drawdown of -10.54%. Use the drawdown chart below to compare losses from any high point for LUBYX and LLDYX.

Drawdown Indicators

	LUBYX	LLDYX	Difference
Max Drawdown Largest peak-to-trough decline	-2.59%	-10.54%	+7.95%
Max Drawdown (1Y) Largest decline over 1 year	-0.40%	-1.29%	+0.89%
Max Drawdown (3Y) Largest decline over 3 years	-0.50%	-1.29%	+0.79%
Max Drawdown (5Y) Largest decline over 5 years	-1.86%	-7.43%	+5.57%
Max Drawdown (10Y) Largest decline over 10 years	—	-9.67%	—
Current Drawdown Current decline from peak	0.00%	-0.26%	+0.26%
Average Drawdown Average peak-to-trough decline	-0.17%	-1.20%	+1.03%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.08%	0.32%	-0.24%

Volatility

LUBYX vs. LLDYX - Volatility Comparison

The current volatility for Lord Abbett Ultra Short Bond Fund (LUBYX) is 0.40%, while Lord Abbett Short Duration Income Fund (LLDYX) has a volatility of 0.73%. This indicates that LUBYX experiences smaller price fluctuations and is considered to be less risky than LLDYX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	LUBYX	LLDYX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.40%	0.73%	-0.33%
Volatility (6M) Calculated over the trailing 6-month period	0.95%	1.68%	-0.73%
Volatility (1Y) Calculated over the trailing 1-year period	1.38%	2.40%	-1.02%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	1.37%	2.74%	-1.37%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	1.12%	2.59%	-1.47%

LUBYX vs. LLDYX - Expense Ratio Comparison

LUBYX has a 0.28% expense ratio, which is lower than LLDYX's 0.38% expense ratio.

Dividends

LUBYX vs. LLDYX - Dividend Comparison

LUBYX's dividend yield for the trailing twelve months is around 4.41%, less than LLDYX's 5.16% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
LLDYX Lord Abbett Short Duration Income Fund	5.16%	5.21%	4.73%	4.71%	2.58%	2.52%	3.06%	3.79%	4.11%	3.90%	4.15%	4.15%
LUBYX Lord Abbett Ultra Short Bond Fund	4.41%	4.66%	4.72%	3.69%	1.33%	0.57%	1.16%	2.55%	2.27%	0.52%	0.00%	0.00%

Frequently Asked Questions

Can I hold both LUBYX and LLDYX in my portfolio?

LUBYX and LLDYX have a correlation of 0.50, 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 LLDYX?

LLDYX has higher volatility (0.73%) compared to LUBYX (0.40%). In terms of maximum drawdown, LUBYX dropped -2.59% vs LLDYX's -10.54%.

Which has better risk-adjusted returns?

LUBYX currently has the higher Sharpe Ratio (3.28 vs 1.86), 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.