IGLB vs SPY
IGLB vs SPY
iShares 10+ Year Investment Grade Corporate Bond ETF vs State Street SPDR S&P 500 ETF Trust
Quick Verdict
IGLB has a lower expense ratio. SPY delivered stronger 1-year returns. IGLB offers more diversification with 1393 holdings.
Side-by-Side Comparison
| Metric | IGLB | SPY | Winner |
|---|---|---|---|
| Expense Ratio | 0.04% | 0.09% | |
| AUM | $2.6B | $789.1B | |
| Dividend Yield | 5.23% | 1.01% | |
| Holdings | 3,825 | 505 | |
| YTD Return | -1.76% | +13.79% | |
| 1Y Return | +0.45% | +23.66% | |
| 3Y Return (annualized) | +3.96% | +21.40% | |
| 5Y Return (annualized) | -2.88% | +13.37% | |
| Volatility (annualized) | 10.5% | 15.3% | |
| Max Drawdown | -34.7% | -56.5% | |
| Fund Family | iShares by BlackRock (US) | State Street Investment Management | |
| Category | Fixed Income | Equity | |
| Inception | Dec 8, 2009 | Jan 22, 1993 |
IGLB vs SPY Performance
iShares 10+ Year Investment Grade Corporate Bond ETF (IGLB) is a ETF from iShares by BlackRock (US) and State Street SPDR S&P 500 ETF Trust (SPY) is a ETF from State Street Investment Management. Over the past year IGLB returned +0.45% while SPY returned +23.66%. Year to date, IGLB is down 1.76% versus a gain of 13.79% for SPY.
Over three years, IGLB compounded at +3.96% per year against +21.40% for SPY; over five years the annualized figures are -2.88% and +13.37% respectively. Across the full 17-year window we track, SPY has the edge at +8.85% annualized vs +1.17%. 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 10.5% for IGLB. 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 -34.7% for IGLB 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 0.42. They move independently enough that combining them can meaningfully diversify a portfolio.
Fees and Cost Over Time
IGLB charges 0.04% per year while SPY charges 0.09%. On a $10,000 position that is $4 vs $9 annually, a gap of $5 per year that compounds over a long holding period. On income, IGLB currently yields 5.23% against 1.01% for SPY.
Holdings Overlap
IGLB and SPY share 1 holdings out of 1895 unique holdings combined, representing a 0.0% weight overlap.
Moderate overlap means holding both could provide meaningful diversification benefits.
Top Shared Holdings
| Stock | Weight in IGLB | Weight in SPY | Difference |
|---|---|---|---|
| ADM | 0.01% | 0.06% | 0.05% |
Frequently Asked Questions
Which is cheaper, IGLB or SPY?
IGLB has an expense ratio of 0.04% while SPY charges 0.09%. IGLB is the cheaper option. On a $10,000 investment, that is $5 per year of difference.
Which performed better, IGLB or SPY?
Over the past year IGLB returned +0.45% vs +23.66% for SPY, so SPY leads on 1-year performance. Over the longest common window we track (17 years), IGLB annualized +1.17% vs +8.85% for SPY. Past performance does not guarantee future results.
Which is riskier, IGLB or SPY?
SPY has been the more volatile fund at 15.3% annualized versus 10.5% for IGLB. Worst drawdown: IGLB -34.7% vs SPY -56.5%.
Should I hold both IGLB and SPY?
IGLB and SPY have a monthly-return correlation of 0.42, so combining them can provide real diversification depending on your allocation goals.
What is the holdings overlap between IGLB and SPY?
IGLB and SPY share 1 common holdings with a 0.0% weight overlap. Combined, they hold 1895 unique securities.
Which pays a higher dividend, IGLB or SPY?
IGLB yields 5.23% while SPY yields 1.01%, so IGLB currently pays the higher dividend yield.
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