MBBA vs. FTSD
MBBA (iShares Mortgage-Backed Securities Active ETF) and FTSD (Franklin Short Duration U.S. Government ETF) are both Mortgage Backed Securities funds. Both are actively managed. A 0.52 correlation means they provide meaningful diversification when combined. Both charge a 0.25% expense ratio.
Performance
MBBA vs. FTSD - Performance Comparison
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Returns By Period
MBBA
- 1D
- 0.38%
- 1M
- 1.26%
- YTD
- —
- 6M
- —
- 1Y
- —
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
FTSD
- 1D
- 0.11%
- 1M
- 0.55%
- YTD
- 1.03%
- 6M
- 1.11%
- 1Y
- 4.17%
- 3Y*
- 5.02%
- 5Y*
- 2.56%
- 10Y*
- 2.07%
MBBA vs. FTSD - Yearly Performance Comparison
| 2026 (YTD) | |
|---|---|
MBBA iShares Mortgage-Backed Securities Active ETF | 1.27% |
FTSD Franklin Short Duration U.S. Government ETF | 1.05% |
Correlation
The correlation between MBBA and FTSD is 0.52, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (All Time) Calculated using the full available price history since Jan 26, 2026 | 0.52 |
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Return for Risk
MBBA vs. FTSD — Risk / Return Rank
MBBA
Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.
FTSD
MBBA vs. FTSD - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Mortgage-Backed Securities Active ETF (MBBA) and Franklin Short Duration U.S. Government ETF (FTSD). 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 | FTSD | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | — | — | |
| Sortino ratioReturn per unit of downside risk | — | — | |
| Omega ratioGain probability vs. loss probability | — | 1.64 | — |
| Calmar ratioReturn relative to maximum drawdown | — | 9.28 | — |
| Martin ratioReturn relative to average drawdown | — | 35.89 | — |
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Drawdowns
MBBA vs. FTSD - Drawdown Comparison
The maximum MBBA drawdown since its inception was -2.83%, smaller than the maximum FTSD drawdown of -5.32%. Use the drawdown chart below to compare losses from any high point for MBBA and FTSD.
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Drawdown Indicators
| MBBA | FTSD | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -2.83% | -5.32% | +2.49% |
Max Drawdown (1Y)Largest decline over 1 year | — | -0.45% | — |
Max Drawdown (3Y)Largest decline over 3 years | — | -0.93% | — |
Max Drawdown (5Y)Largest decline over 5 years | — | -4.96% | — |
Max Drawdown (10Y)Largest decline over 10 years | — | -5.32% | — |
Current DrawdownCurrent decline from peak | -0.72% | -0.10% | -0.62% |
Average DrawdownAverage peak-to-trough decline | -1.12% | -0.60% | -0.52% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | — | 0.12% | — |
Volatility
MBBA vs. FTSD - Volatility Comparison
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Volatility by Period
| MBBA | FTSD | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | — | 0.56% | — |
Volatility (6M)Calculated over the trailing 6-month period | — | 1.09% | — |
Volatility (1Y)Calculated over the trailing 1-year period | 4.55% | 1.36% | +3.19% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 4.55% | 1.86% | +2.69% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.55% | 1.76% | +2.79% |
MBBA vs. FTSD - Expense Ratio Comparison
Both MBBA and FTSD have an expense ratio of 0.25%, making them cost-effective options compared to the broader market, where average expense ratios typically range from 0.3% to 0.9%.
Dividends
MBBA vs. FTSD - Dividend Comparison
MBBA's dividend yield for the trailing twelve months is around 1.83%, less than FTSD's 4.49% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
FTSD Franklin Short Duration U.S. Government ETF | 4.49% | 4.67% | 4.75% | 4.14% | 1.73% | 1.01% | 1.54% | 2.90% | 2.63% | 2.24% | 1.92% | 1.52% |
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 FTSD have a correlation of 0.52, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
Both ETFs have the same 0.25% expense ratio. The better choice depends on whether you care most about return, fees, risk, or income.
MBBA and FTSD have the same expense ratio: 0.25% per year.
FTSD has the higher dividend yield at 4.49%, compared with 1.83% for MBBA.
They also come from different issuers: iShares and Franklin Templeton.
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