GNMA vs SPMB
iShares GNMA Bond ETF compared with State Street SPDR Portfolio Mortgage Backed Bond ETF on yield, payout growth, payment schedule, cost and risk.
GNMA
iShares GNMA Bond ETF
TTM yield · Monthly
SPMB
State Street SPDR Portfolio Mortgage Backed Bond ETF
TTM yield · Monthly
Quick take
- GNMA yields more today: 4.32% vs 4.19% (forward).
- Both pay every month.
- Over the last year SPMB delivered the higher total return: +2.4% vs +2.2% (price change plus payouts).
- SPMB is cheaper to own: 0.04% vs 0.10% expense ratio.
- GNMA has the steadier distribution: consistency 98/100 vs 74/100.
Generated from the latest data on both pages. Not a recommendation.
Side by side
| Metric | GNMA | SPMB |
|---|---|---|
| Share price | $43.37 | $21.84 |
| TTM yield | 4.32% | 4.19% |
| Forward yield | 4.32% | 4.19% |
| Annual payout per share | $1.872 | $0.915 |
| Payment frequency | Monthly | Monthly |
| Next ex-date | Oct 1, 2026 (est.) | Oct 1, 2026 (est.) |
| Expense ratio | 0.10% | 0.04% |
| 1-year payout growth | — | — |
| 5-year payout CAGR | — | — |
| Consecutive years of increases | — | — |
| Payout consistency (last 12) | 98/100 | 74/100 |
| 1-year total return | +2.2% | +2.4% |
| 1-year price return | -2.0% | -1.8% |
| Size (market cap / AUM) | 434.8M | 7.1B |
| Years paying | 14.4 | 17.5 |
| Sector / category | Government Mortgage-Backed Bond | Government Mortgage-Backed Bond |
✓ marks the more favourable figure where one exists (higher yield, growth, streak, consistency, return and size; lower cost, payout ratio and risk).
$10,000 invested today
| GNMA | SPMB | |
|---|---|---|
| Shares | 230.6 | 457.9 |
| Income per year | $432 | $419 |
| Income per month (avg) | $36 | $35 |
At forward yields, before taxes. Model GNMA · Model SPMB
Next payments
| Ex-date | Pay date | Per share | Status |
|---|---|---|---|
| GNMA Oct 1, 2026 | Oct 4, 2026 | $0.156 | Est. |
| GNMA Oct 31, 2026 | Nov 3, 2026 | $0.156 | Est. |
| GNMA Nov 30, 2026 | Dec 3, 2026 | $0.156 | Est. |
| SPMB Oct 1, 2026 | Oct 15, 2026 | $0.0762 | Est. |
| SPMB Oct 31, 2026 | Nov 14, 2026 | $0.0762 | Est. |
| SPMB Nov 30, 2026 | Dec 14, 2026 | $0.0762 | Est. |
Annual payouts per share
GNMASPMB
Regular payments only; the current year is year to date. Per-share amounts are not directly comparable when share prices differ, so read this chart for growth trends.
FAQ
Which has the higher dividend yield, GNMA or SPMB?
GNMA currently has the higher trailing yield: GNMA yields 4.32% and SPMB yields 4.19%. Yield changes daily with price, so check the live figures above.
How often do GNMA and SPMB pay?
GNMA pays every month and SPMB pays every month. GNMA's next ex-date is Oct 1, 2026 and SPMB's is Oct 1, 2026.
Is GNMA or SPMB better for income?
It depends on what you are optimising for. GNMA and SPMB differ in yield, growth, payment schedule and risk profile; the table above puts every metric side by side so you can weigh them for your own goals. This page is data, not advice.