GBAB vs SPY
Guggenheim Taxable Municipal Bond & Investment Grade Debt Trust vs State Street SPDR S&P 500 ETF Trust
Which is better, GBAB or SPY?
Municipal Bond against Large Cap Blend.
SPY has a lower expense ratio. SPY led over 1Y, 3Y, 5Y 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 | GBAB | SPY |
|---|---|---|
| Expense Ratio | 2.93% | 0.09%Best |
| AUM | $388M | $804.7B |
| Dividend Yield | 10.72% | 0.98% |
| Holdings | 636 | 505 |
| YTD Return | -2.99% | +11.52%Best |
| 1Y Return | -5.41% | +17.48%Best |
| 3Y Return (annualized) | +5.28% | +20.62%Best |
| 5Y Return (annualized) | -3.44% | +12.73%Best |
| Volatility (annualized) | 11.6%Best | 14.1% |
| Max Drawdown | -35.8% | -34.1%Best |
| $10,000 over 5 years | $8,394 | $18,205Best |
| Fund Family | Guggenheim Investments | State Street Investment Management |
| Category | Tax Preferred | Equity |
| Style | Municipal Bond | Large Cap Blend |
| Inception | Oct 26, 2010 | Jan 22, 1993 |
Not shown on this pair: Top 10 Weight.
Volatility and max drawdown are measured over the window both funds cover: Oct 27, 2010 to Sep 10, 2026 (15.9 years).
GBAB vs SPY 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 is available from the range buttons; it is not the opening view here because over the whole period one of these two funds moves so much further than the other that its line would sit flat on the axis.
GBAB vs SPY Performance
Guggenheim Taxable Municipal Bond & Investment Grade Debt Trust (GBAB) is an ETF from Guggenheim Investments and State Street SPDR S&P 500 ETF Trust (SPY) is an ETF from State Street Investment Management. Over the past year GBAB returned -5.41% while SPY returned +17.48%. Year to date, GBAB is down 2.99% versus a gain of 11.52% for SPY.
Over three years, GBAB compounded at +5.28% per year against +20.62% for SPY; over five years the annualized figures are -3.44% and +12.73% respectively. Across the full 16-year window we track, SPY has the edge at +12.94% annualized vs +0.56%.
Past performance does not guarantee future results.
Risk: Volatility and Drawdowns
SPY has been the more volatile fund, with annualized monthly volatility of 14.1% compared with 11.6% for GBAB. 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 -35.8% for GBAB and -34.1% for SPY. Drawdown depth is what each fund did in the worst stretch of the window measured above.
The two funds' monthly returns correlate at 0.30. They move together some of the time, and apart the rest.
Fees and Cost Over Time
GBAB charges 2.93% per year while SPY charges 0.09%. On a $10,000 position that is $293 vs $9 annually, a gap of $284 per year that compounds over a long holding period. On income, GBAB currently yields 10.72% against 0.98% for SPY.
Holdings Overlap
At least 1.9% of SPY's money is in holdings GBAB also owns.
Stated as a floor: for GBAB, our book for it covers 57.3% of that fund, so a holding it does not list is one we cannot count as shared. The real figure is this or higher.
SPY and GBAB share little of their money.
The two holdings books were reported 247 days apart, GBAB as of Nov 30, 2025 and SPY as of Aug 4, 2026, so some of the difference between them is the time between the two reports rather than the funds.
2 positions in common, counted across the 214 positions we hold weights for in GBAB and 504 in SPY, against full books of 636 and 505.
You are not choosing between two funds in isolation.
Whichever of GBAB and SPY 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, GBAB or SPY?
GBAB has an expense ratio of 2.93% while SPY charges 0.09%. SPY is the cheaper option, by $284 a year on a $10,000 investment.
Which performed better, GBAB or SPY?
Over the past year GBAB returned -5.41% vs +17.48% for SPY, so SPY leads on 1-year performance. Over the longest common window we track (16 years), GBAB annualized +0.56% vs +12.94% for SPY. Past performance does not guarantee future results. This is information, not a recommendation.
Which is riskier, GBAB or SPY?
SPY has been the more volatile fund at 14.1% annualized versus 11.6% for GBAB. Worst drawdown: GBAB -35.8% vs SPY -34.1%.
Should I hold both GBAB and SPY?
GBAB and SPY have a monthly-return correlation of 0.30, so their returns are far enough apart for the mix to behave differently from either one alone. This is information, not a recommendation.
What is the holdings overlap between GBAB and SPY?
At least 1.9% of SPY's money is in holdings GBAB also owns. Our book for GBAB is partial, so the real figure is this or higher. They hold 2 positions in common, counted across the 214 positions we hold weights for in GBAB and 504 in SPY.
Which pays a higher dividend, GBAB or SPY?
GBAB yields 10.72% while SPY yields 0.98%, so GBAB currently pays the higher dividend yield.
Is SPY better than GBAB?
SPY has a lower expense ratio. SPY led over 1Y, 3Y, 5Y and the full window. Which one suits a particular account depends on what it is for. This is information, not a recommendation.