MBBA vs. IBDR
MBBA (iShares Mortgage-Backed Securities Active ETF) and IBDR (iShares iBonds Dec 2026 Term Corporate ETF) are both exchange-traded funds - MBBA is a Mortgage Backed Securities fund actively managed by iShares, while IBDR is a Corporate Bonds fund tracking the Barclays December 2026 Maturity Corporate Index. MBBA is actively managed, while IBDR is passively managed. At a correlation of -0.03, they often move in opposite directions. MBBA charges 0.25%/yr vs 0.10%/yr for IBDR.
Performance
MBBA vs. IBDR - Performance Comparison
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Returns By Period
MBBA
- 1D
- 0.38%
- 1M
- 1.26%
- YTD
- —
- 6M
- —
- 1Y
- —
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
IBDR
- 1D
- -0.04%
- 1M
- 0.25%
- YTD
- 1.65%
- 6M
- 1.77%
- 1Y
- 4.21%
- 3Y*
- 5.16%
- 5Y*
- 1.58%
- 10Y*
- —
MBBA vs. IBDR - Yearly Performance Comparison
| 2026 (YTD) | |
|---|---|
MBBA iShares Mortgage-Backed Securities Active ETF | 1.27% |
IBDR iShares iBonds Dec 2026 Term Corporate ETF | 1.48% |
Correlation
The correlation between MBBA and IBDR is -0.03, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.
| Correlation | |
|---|---|
Correlation (All Time) Calculated using the full available price history since Jan 26, 2026 | -0.03 |
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Return for Risk
MBBA vs. IBDR — Risk / Return Rank
MBBA
Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.
IBDR
MBBA vs. IBDR - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Mortgage-Backed Securities Active ETF (MBBA) and iShares iBonds Dec 2026 Term Corporate ETF (IBDR). 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.
| MBBA | IBDR | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | — | — | |
| Sortino ratioReturn per unit of downside risk | — | — | |
| Omega ratioGain probability vs. loss probability | — | 3.26 | — |
| Calmar ratioReturn relative to maximum drawdown | — | 51.18 | — |
| Martin ratioReturn relative to average drawdown | — | 177.95 | — |
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Drawdowns
MBBA vs. IBDR - Drawdown Comparison
The maximum MBBA drawdown since its inception was -2.83%, smaller than the maximum IBDR drawdown of -16.06%. Use the drawdown chart below to compare losses from any high point for MBBA and IBDR.
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Drawdown Indicators
| MBBA | IBDR | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -2.83% | -16.06% | +13.23% |
Max Drawdown (1Y)Largest decline over 1 year | — | -0.08% | — |
Max Drawdown (3Y)Largest decline over 3 years | — | -1.08% | — |
Max Drawdown (5Y)Largest decline over 5 years | — | -13.13% | — |
Current DrawdownCurrent decline from peak | -0.72% | -0.04% | -0.68% |
Average DrawdownAverage peak-to-trough decline | -1.12% | -2.82% | +1.70% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | — | 0.02% | — |
Volatility
MBBA vs. IBDR - Volatility Comparison
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Volatility by Period
| MBBA | IBDR | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | — | 0.18% | — |
Volatility (6M)Calculated over the trailing 6-month period | — | 0.35% | — |
Volatility (1Y)Calculated over the trailing 1-year period | 4.55% | 0.63% | +3.92% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 4.55% | 3.39% | +1.16% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.55% | 4.85% | -0.30% |
MBBA vs. IBDR - Expense Ratio Comparison
MBBA has a 0.25% expense ratio, which is higher than IBDR's 0.10% 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%.
Dividends
MBBA vs. IBDR - Dividend Comparison
MBBA's dividend yield for the trailing twelve months is around 1.83%, less than IBDR's 4.13% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|---|---|---|---|---|---|---|---|---|---|---|---|
IBDR iShares iBonds Dec 2026 Term Corporate ETF | 4.13% | 4.20% | 4.13% | 3.41% | 2.44% | 2.11% | 2.61% | 3.25% | 3.56% | 3.22% | 0.86% |
MBBA iShares Mortgage-Backed Securities Active ETF | 1.83% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
MBBA and IBDR have a correlation of -0.03, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
On fees, IBDR is cheaper at 0.10% per year. The better choice depends on whether you care most about return, fees, risk, or income.
IBDR is cheaper with a 0.10% expense ratio, compared with 0.25% for MBBA.
IBDR has the higher dividend yield at 4.13%, compared with 1.83% for MBBA.
MBBA is categorized as Mortgage Backed Securities, while IBDR is Corporate Bonds. Their fees differ too: 0.25% for MBBA and 0.10% for IBDR.
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