MBBA vs. IEZ
MBBA (iShares Mortgage-Backed Securities Active ETF) and IEZ (iShares U.S. Oil Equipment & Services ETF) are both exchange-traded funds - MBBA is a Mortgage Backed Securities fund actively managed by iShares, while IEZ is a Energy Equities fund tracking the Dow Jones U.S. Select Oil Equipment & Services Index. MBBA is actively managed, while IEZ is passively managed. At a correlation of -0.05, they often move in opposite directions. MBBA charges 0.25%/yr vs 0.42%/yr for IEZ.
Performance
MBBA vs. IEZ - Performance Comparison
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Returns By Period
MBBA
- 1D
- 0.38%
- 1M
- 1.26%
- YTD
- —
- 6M
- —
- 1Y
- —
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
IEZ
- 1D
- -3.36%
- 1M
- -15.91%
- YTD
- 28.84%
- 6M
- 29.84%
- 1Y
- 59.92%
- 3Y*
- 14.39%
- 5Y*
- 12.23%
- 10Y*
- -1.80%
MBBA vs. IEZ - Yearly Performance Comparison
| 2026 (YTD) | |
|---|---|
MBBA iShares Mortgage-Backed Securities Active ETF | 1.27% |
IEZ iShares U.S. Oil Equipment & Services ETF | 7.90% |
Correlation
The correlation between MBBA and IEZ is -0.05, 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 | -0.05 |
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Return for Risk
MBBA vs. IEZ — Risk / Return Rank
MBBA
Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.
IEZ
MBBA vs. IEZ - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Mortgage-Backed Securities Active ETF (MBBA) and iShares U.S. Oil Equipment & Services ETF (IEZ). 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 | IEZ | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | — | — | |
| Sortino ratioReturn per unit of downside risk | — | — | |
| Omega ratioGain probability vs. loss probability | — | 1.33 | — |
| Calmar ratioReturn relative to maximum drawdown | — | 3.43 | — |
| Martin ratioReturn relative to average drawdown | — | 13.63 | — |
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Drawdowns
MBBA vs. IEZ - Drawdown Comparison
The maximum MBBA drawdown since its inception was -2.83%, smaller than the maximum IEZ drawdown of -92.52%. Use the drawdown chart below to compare losses from any high point for MBBA and IEZ.
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Drawdown Indicators
| MBBA | IEZ | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -2.83% | -92.52% | +89.69% |
Max Drawdown (1Y)Largest decline over 1 year | — | -17.56% | — |
Max Drawdown (3Y)Largest decline over 3 years | — | -40.25% | — |
Max Drawdown (5Y)Largest decline over 5 years | — | -40.25% | — |
Max Drawdown (10Y)Largest decline over 10 years | — | -88.29% | — |
Current DrawdownCurrent decline from peak | -0.72% | -57.48% | +56.76% |
Average DrawdownAverage peak-to-trough decline | -1.12% | -48.26% | +47.14% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | — | 4.41% | — |
Volatility
MBBA vs. IEZ - Volatility Comparison
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Volatility by Period
| MBBA | IEZ | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | — | 10.23% | — |
Volatility (6M)Calculated over the trailing 6-month period | — | 21.15% | — |
Volatility (1Y)Calculated over the trailing 1-year period | 4.55% | 29.38% | -24.83% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 4.55% | 36.35% | -31.80% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.55% | 41.53% | -36.98% |
MBBA vs. IEZ - Expense Ratio Comparison
MBBA has a 0.25% expense ratio, which is lower than IEZ's 0.42% expense ratio.
Dividends
MBBA vs. IEZ - Dividend Comparison
MBBA's dividend yield for the trailing twelve months is around 1.83%, more than IEZ's 1.29% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
IEZ iShares U.S. Oil Equipment & Services ETF | 1.29% | 1.87% | 1.76% | 0.97% | 0.65% | 1.20% | 2.07% | 2.28% | 1.81% | 3.42% | 0.91% | 2.40% |
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% | 0.00% |
Frequently Asked Questions
MBBA and IEZ have a correlation of -0.05, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
On fees, MBBA is cheaper at 0.25% per year. The better choice depends on whether you care most about return, fees, risk, or income.
MBBA is cheaper with a 0.25% expense ratio, compared with 0.42% for IEZ.
MBBA has the higher dividend yield at 1.83%, compared with 1.29% for IEZ.
MBBA is categorized as Mortgage Backed Securities, while IEZ is Energy Equities. Their fees differ too: 0.25% for MBBA and 0.42% for IEZ.
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