SPY vs SUSC
State Street SPDR S&P 500 ETF Trust vs iShares ESG Aware USD Corporate Bond ETF
Quick Verdict
SPY has a lower expense ratio. SPY delivered stronger 1-year returns. SUSC offers more diversification with 1637 holdings.
Side-by-Side Comparison
| Metric | SPY | SUSC | Winner |
|---|---|---|---|
| Expense Ratio | 0.09% | 0.18% | |
| AUM | $789.1B | $1.3B | |
| Dividend Yield | 1.01% | 4.48% | |
| Holdings | 505 | 3,990 | |
| YTD Return | +14.47% | -0.48% | |
| 1Y Return | +21.96% | +1.45% | |
| 3Y Return (annualized) | +21.70% | +5.39% | |
| 5Y Return (annualized) | +13.30% | -0.17% | |
| Volatility (annualized) | 15.3% | 7.1% | |
| Max Drawdown | -56.5% | -22.6% | |
| Fund Family | State Street Investment Management | iShares by BlackRock (US) | |
| Category | Equity | Fixed Income | |
| Inception | Jan 22, 1993 | Jul 11, 2017 |
SPY vs SUSC Performance
State Street SPDR S&P 500 ETF Trust (SPY) is a ETF from State Street Investment Management and iShares ESG Aware USD Corporate Bond ETF (SUSC) is a ETF from iShares by BlackRock (US). Over the past year SPY returned +21.96% while SUSC returned +1.45%. Year to date, SPY is up 14.47% versus a loss of 0.48% for SUSC.
Over three years, SPY compounded at +21.70% per year against +5.39% for SUSC; over five years the annualized figures are +13.30% and -0.17% respectively. Across the full 9-year window we track, SPY has the edge at +8.87% annualized vs +1.06%. Past performance does not guarantee future results.
Risk: Volatility and Drawdowns
SPY has been the more volatile fund, with annualized monthly volatility of 15.3% compared with 7.1% for SUSC. 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 -56.5% for SPY and -22.6% for SUSC. 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 0.62. They move independently enough that combining them can meaningfully diversify a portfolio.
Fees and Cost Over Time
SPY charges 0.09% per year while SUSC charges 0.18%. On a $10,000 position that is $9 vs $18 annually, a gap of $9 per year that compounds over a long holding period. On income, SPY currently yields 1.01% against 4.48% for SUSC.
Holdings Overlap
SPY and SUSC share 3 holdings out of 2137 unique holdings combined, representing a 0.1% weight overlap.
Moderate overlap means holding both could provide meaningful diversification benefits.
Frequently Asked Questions
Which is cheaper, SPY or SUSC?
SPY has an expense ratio of 0.09% while SUSC charges 0.18%. SPY is the cheaper option. On a $10,000 investment, that is $9 per year of difference.
Which performed better, SPY or SUSC?
Over the past year SPY returned +21.96% vs +1.45% for SUSC, so SPY leads on 1-year performance. Over the longest common window we track (9 years), SPY annualized +8.87% vs +1.06% for SUSC. Past performance does not guarantee future results.
Which is riskier, SPY or SUSC?
SPY has been the more volatile fund at 15.3% annualized versus 7.1% for SUSC. Worst drawdown: SPY -56.5% vs SUSC -22.6%.
Should I hold both SPY and SUSC?
SPY and SUSC have a monthly-return correlation of 0.62, so combining them can provide real diversification depending on your allocation goals.
What is the holdings overlap between SPY and SUSC?
SPY and SUSC share 3 common holdings with a 0.1% weight overlap. Combined, they hold 2137 unique securities.
Which pays a higher dividend, SPY or SUSC?
SPY yields 1.01% while SUSC yields 4.48%, so SUSC currently pays the higher dividend yield.
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