Fund Evaluator:
Lord Abbett Ultra Short Bond I (LUBYX)
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Fund Details
Lord Abbett Ultra Short Bond I Overview
Lord Abbett Ultra Short Bond I (LUBYX) is an actively managed Taxable Bond Ultrashort Bond fund. Lord Abbett launched the fund in 2016.
The investment seeks current income consistent with the preservation of capital. Under normal conditions, the fund pursues its investment objective by investing at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in investment grade debt securities of various types. It invests only in debt securities rated investment grade at the time of purchase or determined by Lord Abbett to be of comparable quality.
About Lord Abbett Ultra Short Bond I (LUBYX)
There are 3 members of the management team with an average tenure of 8.82 years: Adam Castle (2018), Yoana Koleva (2018), Andrew O'Brien (2016). Management tenure is more important for actively managed funds than passive index funds.
The fund has 2 primary benchmarks: Bloomberg US Agg Bond TR USD index with a weighting of 100% and ICE BofA US Treasury Bill TR USD index with a weighting of 100%. Lord Abbett Ultra Short Bond I has 636 securities in its portfolio. The top 10 holdings constitute 8.8% of the fund’s assets. The fund meets the SEC requirement of being classified as a diversified fund. The fund is not considered to have an ESG focus with its investment selection and management.
Lord Abbett Ultra Short Bond I is part of the Fixed Income global asset class and is within the Taxable Bond fund group. Lord Abbett Ultra Short Bond I has 17.8% of its portfolio invested in foreign issues. The overall assets allocated to domestic stock is 0.0%. There is 0.0% allocated to foreign stock, and 0.0% is allocated to preferred stocks. The bond allocation as a percentage of total assets is 84.3% (66.5% domestic bond, 17.8% foreign bond and 0.0% convertible bond). Lord Abbett Ultra Short Bond I has 15.7% of the portfolio in cash.
Assets Under Management
The fund has $5 billion in total assets, which is above the $950 million average for the Ultrashort Bond category. Normally, lower assets under management translates to higher average expense ratios, and greater total assets are desired. However, for some investment categories, such as small-cap investing, it may be difficult for the manager to fully employ the desired active strategy if assets grow too large or too quickly.
LUBYX Performance and Fees
The expense ratio measures how much of a fund’s assets are used for administrative expenses and operating expenses, including adviser fees and fees for the transfer agent and custodial services. The Lord Abbett Ultra Short Bond I expense ratio is below average compared to funds in the Ultrashort Bond category. Lord Abbett Ultra Short Bond I has an expense ratio of 0.29%, which is 35% lower than its category average, making the fund expense ratio grade a B. While it is difficult to predict returns, it is known that high annual expense ratios reduce your rate of return, and excessive fees are difficult to overcome. Active management normally comes with higher expense ratios than passive index management. Certain investment categories such as small company and foreign also normally have higher expense ratios. It is best to compare fund expense ratios against the category averages for meaningful assessments.
High portfolio turnover can translate to higher expenses and lower aftertax returns. Lord Abbett Ultra Short Bond I has a portfolio turnover rate of 72%, indicating that holds its assets around 0.0 years. By way of comparison, the average portfolio turnover is 77% for the Ultrashort Bond category.
Recently, in the month of July 2026, Lord Abbett Ultra Short Bond I returned 0.3%, which earned it a grade of B, as the Ultrashort Bond category had an average return of 0.3%. The letter grades of A, B, C, D and F are based upon relative rankings within the investment category. A grade of A, for example, would indicate that the return is in the highest 20% for that time period compared to all funds in that category.
Lord Abbett Ultra Short Bond I has a trailing yield of 4.32%, which is above the 4.21% category average. The fund normally distributes its income monthly.
It’s natural to seek the best-performing investments, but you must consider the relationship between risk and return and the impact of costs and taxes on your realized returns.
Lord Abbett Ultra Short Bond I Grades
Year to date, the fund has returned 2.0%, 0.0 percentage points worse than the category, which translates into a grade of C. The fund has returned 4.2% over the past year (grade of C), 5.3% over the past three years (grade of B) and 3.8% per year over the past five years (grade of C).
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LUBYX Trailing NAV Total Returns Data as of 7/31/26
| Last Month |
Last Quarter |
Ann'l. 1Yr |
Ann'l. 3Yr |
Ann'l. 5Yr |
Ann'l. 10Yr |
|
| LUBYX Return (NAV) | 0.3% | 0.9% | 4.2% | 5.3% | 3.8% | na |
| LUBYX Grade | B | C | C | B | C | na |
| +/- Category | 0.0% | 0.0% | 0.0% | 0.1% | 0.1% | na |
| Ultrashort Bond Avg | 0.3% | 0.9% | 4.1% | 5.2% | 3.6% | 2.7% |
| LUBYX Tax Cost Ratio | na | na | 1.7% | 1.9% | 1.5% | na |
LUBYX Annual NAV Total ReturnsData as of 7/31/26
| 2026 | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | |
| LUBYX Return (NAV) | 2.0% | 5.0% | 6.1% | 6.0% | 0.0% | 0.1% | 1.3% | 3.0% | 2.1% | 1.6% | na |
| LUBYX Grade | C | B | B | B | C | C | D | C | A | B | na |
| +/- Category | -0.0% | 0.1% | 0.3% | 0.1% | 0.2% | -0.1% | -0.3% | -0.1% | 0.4% | 0.0% | na |
| Ultrashort Bond Avg | 2.1% | 4.9% | 5.9% | 5.9% | -0.2% | 0.1% | 1.5% | 3.1% | 1.7% | 1.6% | 1.5% |
| Risk Measures | |
| Standard Deviation: | 0.5% |
| Total Risk Index: | 0.04 - Low |
| Category Risk Index: | 0.87 - Average |
| Category Risk Grade: | C (47% Rank) |
| Beta: | 0.05 |
| R-Squared: | 47% |
| Leveraged Fund: | No |
| Inverse Fund: | No |
| Portfolio Characteristics | |
| Equity Investment Style: | na |
| Bond Investment Style: | High Quality Limited Sensitivity |
| Yield: | 4.3% |
| Dividend Distribution: | Monthly |
| Cap Gains Distribution: | |
| Total Assets: | $16672 Mil |
| Fund Total Assets: | $5,117 Mil |
| Share Class Type: | Inst |
| Portfolio Turnover: | 72% |
Management Team
| Number of Managers: 3 | |||
| Longest Tenure: 9.8 years | |||
| Average Tenure: 8.8 years | |||
| Managers (Year): O'Brien Andrew (2016), Castle Adam (2018), Koleva Yoana (2018) | |||
Portfolio Composition (as of 5/31/26)
| # of Holdings: | 636 |
| % in Top 10 Holdings: | 8.8% |
| Fund is Non-Diversified: | No |
| % in Foreign Issues: | 17.8% |
Portfolio Allocation |
|
| Domestic Stock: | 0.0% |
| Foreign Stock: | 0.0% |
| Preferred Stock: | 0.0% |
| Domestic Bond: | 66.5% |
| Foreign Bond: | 17.8% |
| Convertible Bond: | 0.0% |
| Other: | 0.0% |
| Cash: | 15.7% |
Purchase Information
| Fund Family: | Lord Abbett |
| Phone Number: | 888-522-2388 |
| Website: | www.lordabbett.com |
| Status: | Open |
| Inception Date: | October 17, 2016 |
| Min. Initial Purchase: | $1,000,000 |
| Min. Initial IRA Purchase: | $ 0 |
| True No-Load: | Yes |
| Front Load Maximum: | 0.00% |
| Deferred Charge Maximum: | 0.00% |
| Redemption Charge Maximum: | 0.00% |
| 12b-1 Fee: | na |
Expenses and Fees | |
| Expense Ratio (%): | 0.29% ( Rating : Below Avg ) |
| Category Average Expense Ratio (%): | 0.45% |
| Share Class: | Lord Abbett Ultra Short Bond R6 |
| Min. Subsequent Purchase: | $ 0 |
| Min. Subsequent IRA Purchase: | $ 0 |
