SPY vs ZMUN
State Street SPDR S&P 500 ETF Trust vs F/m Ultrashort Tax Free Municipal ETF
Which is better, SPY or ZMUN?
Large Cap Blend against Municipal Bond.
SPY has a lower expense ratio. SPY led over 1Y and the full window.
MarketXLS is not an investment adviser. This comparison is generated automatically from market data and is for information only. A Best mark means the better reading on that one measure, not a recommendation to buy.
Side-by-Side Comparison
| Metric | SPY | ZMUN |
|---|---|---|
| Expense Ratio | 0.09%Best | 0.30% |
| AUM | $823.2B | $34M |
| Dividend Yield | 0.99% | 3.25% |
| Holdings | 1,515 | 174 |
| YTD Return | +13.53%Best | +2.04% |
| 1Y Return | +17.47%Best | +2.84% |
| 3Y Return (annualized) | +22.36% | - |
| 5Y Return (annualized) | +13.21% | - |
| Volatility (annualized) | 12.6% | 1.1%Best |
| Max Drawdown | -8.9% | -1.0%Best |
| $10,000 over 1 years | $11,612Best | $10,270 |
| Fund Family | State Street Investment Management | F-m investments |
| Category | Equity | Tax Preferred |
| Style | Large Cap Blend | Municipal Bond |
| Inception | Jan 22, 1993 | Sep 30, 2025 |
Not shown on this pair: Top 10 Weight.
Volatility and max drawdown, and the $10,000 over 1 years row, are measured over the window both funds cover: Sep 30, 2025 to Oct 14, 2026 (1 years).
SPY vs ZMUN growth
Month-end closes. Both lines start at 0% in the first month shown, so the gap between them is the difference in growth across that window. The full view covers the 1 years both funds cover.
SPY vs ZMUN Performance
State Street SPDR S&P 500 ETF Trust (SPY) is an ETF from State Street Investment Management and F/m Ultrashort Tax Free Municipal ETF (ZMUN) is an ETF from F-m investments. Over the past year SPY returned +17.47% while ZMUN returned +2.84%. Year to date, SPY is up 13.53% versus a gain of 2.04% for ZMUN.
Past performance does not guarantee future results.
Risk: Volatility and Drawdowns
SPY has been the more volatile fund, with annualized monthly volatility of 12.6% compared with 1.1% for ZMUN. 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 -8.9% for SPY and -1.0% for ZMUN. Drawdown depth is what each fund did in the worst stretch of the window measured above.
The two funds' monthly returns correlate at 0.04. They move largely independently of each other.
Fees and Cost Over Time
SPY charges 0.09% per year while ZMUN charges 0.30%. On a $10,000 position that is $9 vs $30 annually, a gap of $21 per year that compounds over a long holding period. On income, SPY currently yields 0.99% against 3.25% for ZMUN.
Holdings Overlap
We hold position weights for 504 holdings in SPY and 29 in ZMUN, totalling 99.8% and 23.4% of the two funds. The two books name no position in common, so there is no overlap percentage to show.
0 positions in common, counted across the 504 positions we hold weights for in SPY and 29 in ZMUN, against full books of 1,515 and 174.
You are not choosing between two funds in isolation.
Whichever of SPY and ZMUN you pick has to sit alongside everything else you own. Add the rest and see what the combination actually holds.
Free for up to 10 holdings. No account needed.
Frequently Asked Questions
Which is cheaper, SPY or ZMUN?
SPY has an expense ratio of 0.09% while ZMUN charges 0.30%. SPY is the cheaper option, by $21 a year on a $10,000 investment.
Which performed better, SPY or ZMUN?
Over the past year SPY returned +17.47% vs +2.84% for ZMUN, so SPY leads on 1-year performance. Over the longest common window we track (1 years), SPY annualized +16.12% vs +2.70% for ZMUN. Past performance does not guarantee future results. This is information, not a recommendation.
Which is riskier, SPY or ZMUN?
SPY has been the more volatile fund at 12.6% annualized versus 1.1% for ZMUN. Worst drawdown: SPY -8.9% vs ZMUN -1.0%.
Should I hold both SPY and ZMUN?
SPY and ZMUN have a monthly-return correlation of 0.04, so their returns are far enough apart for the mix to behave differently from either one alone. This is information, not a recommendation.
Which pays a higher dividend, SPY or ZMUN?
SPY yields 0.99% while ZMUN yields 3.25%, so ZMUN currently pays the higher dividend yield.
Is ZMUN better than SPY?
SPY has a lower expense ratio. SPY led over 1Y and the full window. Which one suits a particular account depends on what it is for. This is information, not a recommendation.