MYMI vs VOO
State Street My2029 Municipal Bond ETF vs Vanguard S&P 500 ETF
Quick Verdict
VOO has a lower expense ratio. VOO delivered stronger 1-year returns. VOO offers more diversification with 509 holdings.
Side-by-Side Comparison
| Metric | MYMI | VOO | Winner |
|---|---|---|---|
| Expense Ratio | 0.20% | 0.03% | |
| AUM | $15M | $997.4B | |
| Dividend Yield | 2.87% | 1.08% | |
| Holdings | 104 | 509 | |
| YTD Return | +1.35% | +12.25% | |
| 1Y Return | +3.45% | +20.92% | |
| 3Y Return (annualized) | - | +21.79% | |
| 5Y Return (annualized) | - | +13.05% | |
| Volatility (annualized) | 2.7% | 14.1% | |
| Max Drawdown | -3.1% | -34.3% | |
| Fund Family | State Street Investment Management | Vanguard (US) | |
| Category | Tax Preferred | Equity | |
| Inception | Sep 23, 2024 | Sep 7, 2010 |
MYMI vs VOO Performance
State Street My2029 Municipal Bond ETF (MYMI) is a ETF from State Street Investment Management and Vanguard S&P 500 ETF (VOO) is a ETF from Vanguard (US). Over the past year MYMI returned +3.45% while VOO returned +20.92%. Year to date, MYMI is up 1.35% versus a gain of 12.25% for VOO.
Risk: Volatility and Drawdowns
VOO has been the more volatile fund, with annualized monthly volatility of 14.1% 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 -34.3% for VOO. 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 VOO charges 0.03%. On a $10,000 position that is $20 vs $3 annually, a gap of $17 per year that compounds over a long holding period. On income, MYMI currently yields 2.87% against 1.08% for VOO.
Holdings Overlap
MYMI and VOO share 0 holdings out of 506 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 VOO?
MYMI has an expense ratio of 0.20% while VOO charges 0.03%. VOO is the cheaper option. On a $10,000 investment, that is $17 per year of difference.
Which performed better, MYMI or VOO?
Over the past year MYMI returned +3.45% vs +20.92% for VOO, so VOO leads on 1-year performance. Over the longest common window we track (2 years), MYMI annualized +2.06% vs +13.45% for VOO. Past performance does not guarantee future results.
Which is riskier, MYMI or VOO?
VOO has been the more volatile fund at 14.1% annualized versus 2.7% for MYMI. Worst drawdown: MYMI -3.1% vs VOO -34.3%.
Should I hold both MYMI and VOO?
MYMI and VOO 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 VOO?
MYMI and VOO share 0 common holdings with a 0.0% weight overlap. Combined, they hold 506 unique securities.
Which pays a higher dividend, MYMI or VOO?
MYMI yields 2.87% while VOO yields 1.08%, so MYMI currently pays the higher dividend yield.
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