SPMBvsMBBAETF Comparison
State Street State Street SPDR Portfolio Mortgage Backed Bond ETF
State Street State Street SPDR Portfolio Mortgage Backed Bond ETF (SPMB) and iShares Mortgage-Backed Securities Active ETF (MBBA) belong to the same industry segment: MBS & ABS. SPMB's top 3 sector exposures are Industrials, Finance and Government Agencies. In contrast, MBBA's top sector exposures are Industrials and Non-Corporate. SPMB is less expensive with a Total Expense Ratio (TER) of 0.04%, versus 0.26% for MBBA. Run a side-by-side ETF comparison of SPMB and MBBA below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
SPMB vs MBBA performance and flow charts
Performance
Cumulative Flows
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | SPMB MBBA | +2.09%+1.96% | -1.45%-1.76% | -1.06%n/a | -1.13%n/a | +19.19%n/a | +0.25%n/a |
| Flows | SPMB MBBA | +$35M+$43M | +$152M+$596M | +$609M- | +$795M- | +$2.47B- | +$3.60B- |
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | SPMB MBBA | +5.97%+5.98% | +4.74%n/a | +5.73%n/a | +6.79%n/a |
| Max drawdown | SPMB MBBA | -4.41%-4.67% | -5.57%n/a | -5.57%n/a | -17.04%n/a |
| Max drawdown duration | SPMB MBBA | 64d64d | 241dn/a | 241dn/a | 1436dn/a |
SPMB | MBBA | |
Last sale 10/29/2026 at 1:30 PM | $21.61 | $48.00 |
| Previous close 10/28/2026 | $21.55 | $47.90 |
| Consolidated volume 10/28/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
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SPMB | MBBA | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
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SPMB | MBBA | |
|---|---|---|
| Last price | $21.61 | $48.00 |
| 1D performance | +0.28% | +0.21% |
| AuM | $6.97 B | $749.33 M |
| E/R | 0.04% | 0.26% |
SPMB | MBBA | |
|---|---|---|
| Management strategy | Passive | Active |
| Provider | State Street Investment Management | iShares |
| Benchmark | Bloomberg U.S. MBS Index | - |
| N° of holdings | 566 | 26 |
| Asset class | Bonds | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | January 15, 2009 | January 23, 2026 |
| ESG | No | No |
Countries
Sectors
Diversification
Total weight of top 15 holdings out of 15
