ETF Evaluator:
F/m Ultrshrt Trs Infl-Protd Sec TIPS ETF ()
Follow This ETF
(as of Aug 26)
Best Performing in Short-Term Inflation-Protected Bond Over the Last Year
| 4.1% | F/m Ultrshrt Trs Infl-Protd Sec TIPS ETF (RBIL) |
| 3.5% | Vanguard Short-Term Infl-Prot Secs ETF (VTIP) |
| 3.5% | iShares 0-5 Year TIPS Bond ETF (STIP) |
| 3.4% | Invesco 0-5 Yr US TIPS ETF (PBTP) |
| 3.4% | iShares iBonds 1-5 Year TIPS Ladder ETF (LDRI) |
Risk
Index
Risk
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ETF Details
F/m Ultrshrt Trs Infl-Protd Sec TIPS ETF Overview
F/m Ultrshrt Trs Infl-Protd Sec TIPS ETF (RBIL) is a passively managed Taxable Bond Short-Term Inflation-Protected Bond exchange-traded fund (ETF). F/m investments, LLC launched the ETF in 2025.
The investment seeks investment results that correspond (before fees and expenses) generally to the price and yield performance of the Bloomberg U.S. Ultrashort TIPS 1-13 Months Total Return Unhedged USD Index (I39232US).
The index measures the performance of U.S. Treasury Inflation-Protected Securities (“TIPS”) with maturities from 1 month up to (but not including) 13 months. Under normal market conditions, F/m Investments LLC seeks to achieve the fund’s investment objective by investing at least 80% of the fund’s net assets in TIPS with maturities of 1-13 months. The fund is non-diversified.
About F/m Ultrshrt Trs Infl-Protd Sec TIPS ETF (RBIL)
There are 3 members of the management team with an average tenure of 1.43 years: Peter Baden (2025), Alexander Morris (2025) and Marcin Zdunek (2025). Management tenure is more important for actively managed ETFs than passive index ETFs.
The ETF has 1 primary benchmark: Bloomberg US US TIPS 1-13M Unhgd TR USD index with a weighting of 100%. F/m Ultrshrt Trs Infl-Protd Sec TIPS ETF has 7 securities in its portfolio. The top 10 holdings constitute 100.0% of the ETF’s assets. The ETF meets the SEC requirement of being classified as a nondiversified fund. The ETF is not considered to have an ESG focus with its investment selection and management.
F/m Ultrshrt Trs Infl-Protd Sec TIPS ETF is part of the Fixed Income global asset class and is within the Taxable Bond ETF group. F/m Ultrshrt Trs Infl-Protd Sec TIPS ETF has 0.0% 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 74.3% (74.3% domestic bond, 0.0% foreign bond and 0.0% convertible bond). F/m Ultrshrt Trs Infl-Protd Sec TIPS ETF has 25.7% of the portfolio in cash.
Assets Under Management
The fund has $153 million in total assets, which is below the $3 billion average for the Short-Term Inflation-Protected 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.
RBIL 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 F/m Ultrshrt Trs Infl-Protd Sec TIPS ETF expense ratio is low compared to funds in the Short-Term Inflation-Protected Bond category. F/m Ultrshrt Trs Infl-Protd Sec TIPS ETF has an expense ratio of 0.17%, which is 28% higher than its category average, making the fund expense ratio grade a C. 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. F/m Ultrshrt Trs Infl-Protd Sec TIPS ETF has a portfolio turnover rate of 66%, which indicates that it holds its assets around / 0.0 years. By way of comparison, the average portfolio turnover is 38% for the Short-Term Inflation-Protected Bond category.
Recently, in the month of July 2026, F/m Ultrshrt Trs Infl-Protd Sec TIPS ETF returned 0.3%, which earned it a grade of A, as the Short-Term Inflation-Protected Bond category had an average return of 0.2%. 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 ETFs in that category.
F/m Ultrshrt Trs Infl-Protd Sec TIPS ETF has a trailing yield of 4.16%, which is below the 4.76% category average.
The fund normally distributes its income monthly and its capital gains annually.
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.
F/m Ultrshrt Trs Infl-Protd Sec TIPS ETF Grades
Year to date, the ETF has returned 2.7%, 0.8 percentage points better than the category, which translates into a grade of A. The fund has returned 4.1% over the past year (grade of A).
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RBIL 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 |
|
| RBIL Return (NAV) | 0.3% | 0.6% | 4.1% | na | na | na |
| RBIL Return (Price) | 0.3% | 0.5% | 4.1% | na | na | na |
| NAV +/- Price Return | -0.006% | 0.014% | 0.014% | na | na | na |
| Short-Term Inflation-Protected Bond Avg | 0.2% | -0.0% | 3.4% | 4.9% | 2.7% | 3.0% |
| RBIL Grade (NAV) | A | A | A | na | na | na |
| +/- Category (NAV) | 0.2% | 0.6% | 0.7% | na | na | na |
| RBIL Tax-Cost Ratio | na | na | 1.7% | na | na | na |
RBIL Annual NAV Total ReturnsData as of 7/31/26
| 2026 | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | |
| RBIL Return (NAV) | 2.7% | na | na | na | na | na | na | na | na | na | na |
| RBIL Return (Price) | 2.7% | na | na | na | na | na | na | na | na | na | na |
| NAV +/- Price Ret | 0.017% | na | na | na | na | na | na | na | na | na | na |
| Short-Term Inflation-Protected Bond Avg | 1.9% | 6.3% | 4.3% | 4.5% | -4.2% | 5.4% | 6.0% | 5.3% | 0.2% | 0.9% | 3.0% |
| RBIL Grade (NAV) | A | na | na | na | na | na | na | na | na | na | na |
| +/- Category | 0.8% | na | na | na | na | na | na | na | na | na | na |
| Risk Measures | |
| Beta: | na |
| R-Squared: | na |
| Standard Deviation: | na |
| Category Risk Index: | na |
| Category Risk Rating: | |
| Total Risk Index: | na |
| Total Risk Rating: | |
| Portfolio Characteristics | |
| Yield: | 4.2% |
| Total Assets: | $ 154 Mil |
| Share Class Assets: | $ 154 Mil |
| Turnover: | 66.0% |
| Expense Ratio: | 0.17% |
| Index Fund: | Yes |
| Index Tracked: | Bloomberg US US TIPS 1-13M Unhgd TR USD |
| Index Weighting: | 100% |
| Leveraged: | No |
| Socially Responsible Fund: | No |
| Capital Gains Distribution Frequency: | Annually |
| Income Distribution Frequency: | Monthly |
Management Team
| Number of Managers: 3 | |||
| Longest Tenure: 1.4 years | |||
| Average Tenure: 1.4 years | |||
| Managers (Year): Baden Peter (2025), Morris Alexander (2025), Zdunek Marcin (2025) | |||
Portfolio Composition (as of 7/31/26)
| # of Holdings: | 7 |
| % in Top 10 Holdings: | 100.0% |
| Fund is Non-Diversified: | Yes |
| % in Foreign Issues: | 0.0% |
Portfolio Allocation |
|
| Domestic Stock: | 0.0% |
| Foreign Stock: | 0.0% |
| Preferred Stock: | 0.0% |
| Domestic Bond: | 74.3% |
| Foreign Bond: | 0.0% |
| Convertible Bond: | 0.0% |
| Other: | 0.0% |
| Cash: | 25.7% |
Purchase Information
| Legal Structure: | Open Ended Investment Company |
| Fund Family: | F/m investments, LLC |
| Phone Number: | 800-617-0004 |
| Website: | www.S1Fund.com. |
| Inception Date: | February 24, 2025 |
Expenses and Fees
| Expense Ratio (%): | 0.17% (Rating: Low) |
| Category Average Expense Ratio (%): | 0.13% |