MYMI vs SPY
State Street My2029 Municipal Bond ETF vs State Street SPDR S&P 500 ETF Trust
Quick Verdict
SPY has a lower expense ratio. SPY delivered stronger 1-year returns. SPY offers more diversification with 505 holdings.
Side-by-Side Comparison
| Metric | MYMI | SPY | Winner |
|---|---|---|---|
| Expense Ratio | 0.20% | 0.09% | |
| AUM | $15M | $821.1B | |
| Dividend Yield | 2.87% | 1.01% | |
| Holdings | 104 | 505 | |
| YTD Return | +1.41% | +12.68% | |
| 1Y Return | +3.58% | +21.82% | |
| 3Y Return (annualized) | - | +21.98% | |
| 5Y Return (annualized) | - | +12.89% | |
| Volatility (annualized) | 2.7% | 15.3% | |
| Max Drawdown | -3.1% | -56.5% | |
| Fund Family | State Street Investment Management | State Street Investment Management | |
| Category | Tax Preferred | Equity | |
| Inception | Sep 23, 2024 | Jan 22, 1993 |
MYMI vs SPY Performance
State Street My2029 Municipal Bond ETF (MYMI) is a ETF from State Street Investment Management and State Street SPDR S&P 500 ETF Trust (SPY) is a ETF from State Street Investment Management. Over the past year MYMI returned +3.58% while SPY returned +21.82%. Year to date, MYMI is up 1.41% versus a gain of 12.68% for SPY.
Risk: Volatility and Drawdowns
SPY has been the more volatile fund, with annualized monthly volatility of 15.3% compared with 2.7% for MYMI. Lower volatility generally means a smoother ride, though it often comes with lower long-run returns.
The deepest peak-to-trough decline in our data was -3.1% for MYMI and -56.5% for SPY. Drawdown depth is worth weighing if you expect to sell during market stress rather than ride it out.
The two funds' monthly returns correlate at 0.61. They move independently enough that combining them can meaningfully diversify a portfolio.
Fees and Cost Over Time
MYMI charges 0.20% per year while SPY charges 0.09%. On a $10,000 position that is $20 vs $9 annually, a gap of $11 per year that compounds over a long holding period. On income, MYMI currently yields 2.87% against 1.01% for SPY.
Holdings Overlap
MYMI and SPY share 0 holdings out of 505 unique holdings combined, representing a 0.0% weight overlap.
Moderate overlap means holding both could provide meaningful diversification benefits.
Frequently Asked Questions
Which is cheaper, MYMI or SPY?
MYMI has an expense ratio of 0.20% while SPY charges 0.09%. SPY is the cheaper option. On a $10,000 investment, that is $11 per year of difference.
Which performed better, MYMI or SPY?
Over the past year MYMI returned +3.58% vs +21.82% for SPY, so SPY leads on 1-year performance. Over the longest common window we track (2 years), MYMI annualized +2.09% vs +8.81% for SPY. Past performance does not guarantee future results.
Which is riskier, MYMI or SPY?
SPY has been the more volatile fund at 15.3% annualized versus 2.7% for MYMI. Worst drawdown: MYMI -3.1% vs SPY -56.5%.
Should I hold both MYMI and SPY?
MYMI and SPY have a monthly-return correlation of 0.61, so combining them can provide real diversification depending on your allocation goals.
What is the holdings overlap between MYMI and SPY?
MYMI and SPY share 0 common holdings with a 0.0% weight overlap. Combined, they hold 505 unique securities.
Which pays a higher dividend, MYMI or SPY?
MYMI yields 2.87% while SPY yields 1.01%, so MYMI currently pays the higher dividend yield.
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