IBTF vs. MBB
Compare and contrast key facts about iShares iBonds Dec 2025 Term Treasury ETF (IBTF) and iShares MBS Bond ETF (MBB).
IBTF and MBB are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. IBTF is a passively managed fund by iShares that tracks the performance of the ICE 2025 Maturity US Treasury Index. It was launched on Feb 25, 2020. MBB is a passively managed fund by iShares that tracks the performance of the Barclays Capital U.S. MBS Index. It was launched on Mar 16, 2007. Both IBTF and MBB are passive ETFs, meaning that they are not actively managed but aim to replicate the performance of the underlying index as closely as possible.
Scroll down to visually compare performance, riskiness, drawdowns, and other indicators and decide which better suits your portfolio: IBTF or MBB.
Key characteristics
| IBTF | MBB | |
|---|---|---|
| YTD Return | 3.87% | 1.39% |
| 1Y Return | 5.41% | 7.60% |
| 3Y Return (Ann) | 0.41% | -2.04% |
| Sharpe Ratio | 4.58 | 1.02 |
| Sortino Ratio | 7.91 | 1.50 |
| Omega Ratio | 2.20 | 1.18 |
| Calmar Ratio | 0.79 | 0.48 |
| Martin Ratio | 47.61 | 3.39 |
| Ulcer Index | 0.11% | 2.01% |
| Daily Std Dev | 1.14% | 6.65% |
| Max Drawdown | -10.45% | -17.65% |
| Current Drawdown | -1.53% | -7.62% |
Correlation
The correlation between IBTF and MBB is 0.67, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.
Performance
IBTF vs. MBB - Performance Comparison
In the year-to-date period, IBTF achieves a 3.87% return, which is significantly higher than MBB's 1.39% return. The chart below displays the growth of a $10,000 investment in both assets, with all prices adjusted for splits and dividends.
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IBTF vs. MBB - Expense Ratio Comparison
IBTF has a 0.07% expense ratio, which is higher than MBB's 0.06% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Risk-Adjusted Performance
IBTF vs. MBB - Risk-Adjusted Performance Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares iBonds Dec 2025 Term Treasury ETF (IBTF) and iShares MBS Bond ETF (MBB). 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.
Dividends
IBTF vs. MBB - Dividend Comparison
IBTF's dividend yield for the trailing twelve months is around 4.30%, more than MBB's 3.86% yield.
| TTM | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
IBTF iShares iBonds Dec 2025 Term Treasury ETF | 4.30% | 4.03% | 1.92% | 0.57% | 0.59% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
MBB iShares MBS Bond ETF | 3.86% | 3.40% | 2.31% | 1.05% | 2.10% | 2.77% | 2.63% | 2.23% | 2.58% | 2.66% | 1.72% | 1.27% |
Drawdowns
IBTF vs. MBB - Drawdown Comparison
The maximum IBTF drawdown since its inception was -10.45%, smaller than the maximum MBB drawdown of -17.65%. Use the drawdown chart below to compare losses from any high point for IBTF and MBB. For additional features, visit the drawdowns tool.
Volatility
IBTF vs. MBB - Volatility Comparison
The current volatility for iShares iBonds Dec 2025 Term Treasury ETF (IBTF) is 0.25%, while iShares MBS Bond ETF (MBB) has a volatility of 1.99%. This indicates that IBTF experiences smaller price fluctuations and is considered to be less risky than MBB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.