Growth of $10,000 in SPMB
State Street® SPDR® Portfolio Mortgage Backed Bond ETF · State Street (SPDR)
A $10,000 investment compounding at SPMB’s trailing 10-year annualized total return of 1.2% would reach $12,619 in 20 years. The table shows every combination of averaging period and horizon; returns include dividends and are net of the fund's 0.04% expense ratio. Past performance does not predict future results.
Projection table
| Horizon | At 3-year avg (4.7%) | At 5-year avg (0.2%) | At 10-year avg (1.2%) |
|---|---|---|---|
| 5 years | $12,606 | $10,110 | $10,599 |
| 10 years | $15,890 | $10,222 | $11,234 |
| 15 years | $20,030 | $10,335 | $11,906 |
| 20 years | $25,249 | $10,449 | $12,619 |
| 25 years | $31,828 | $10,565 | $13,375 |
| 30 years | $40,121 | $10,681 | $14,176 |
Annualized total returns as of Aug 7, 2026, dividends reinvested. A constant rate is an illustration of compounding — real markets are far bumpier.
Want a different amount, horizon or a side-by-side fund comparison? Open SPMB in the interactive calculator →
Frequently Asked Questions
What would $10,000 in SPMB be worth in 10 years?
Compounding at its trailing 10-year annualized return of 1.2%, $10,000 in SPMB would grow to about $11,234 in 10 years and $12,619 in 20 years. Real returns arrive unevenly, so treat this as an illustration of compounding, not a forecast.
What is SPMB's average annual return?
As of Aug 7, 2026, SPMB's annualized total returns were 4.7% over 3 years, 0.2% over 5 years, 1.2% over 10 years — dividends reinvested, net of its 0.04% expense ratio.