IBGC vs SPY
iShares iBonds Dec 2046 Term Treasury ETF vs State Street SPDR S&P 500 ETF Trust
Quick Verdict
IBGC has a lower expense ratio. SPY offers more diversification with 505 holdings.
Side-by-Side Comparison
| Metric | IBGC | SPY | Winner |
|---|---|---|---|
| Expense Ratio | 0.07% | 0.09% | |
| AUM | $28M | $821.1B | |
| Dividend Yield | 1.22% | 1.01% | |
| Holdings | 7 | 505 | |
| YTD Return | -1.32% | +12.22% | |
| 1Y Return | - | +20.83% | |
| 3Y Return (annualized) | - | +21.70% | |
| 5Y Return (annualized) | - | +12.98% | |
| Volatility (annualized) | - | 15.3% | |
| Max Drawdown | -5.3% | -56.5% | |
| Fund Family | iShares by BlackRock (US) | State Street Investment Management | |
| Category | Fixed Income | Equity | |
| Inception | Mar 25, 2026 | Jan 22, 1993 |
IBGC vs SPY Performance
iShares iBonds Dec 2046 Term Treasury ETF (IBGC) 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. Year to date, IBGC is down 1.32% versus a gain of 12.22% for SPY.
Risk: Volatility and Drawdowns
The deepest peak-to-trough decline in our data was -5.3% for IBGC and -56.5% for SPY. Drawdown depth is worth weighing if you expect to sell during market stress rather than ride it out.
Fees and Cost Over Time
IBGC charges 0.07% per year while SPY charges 0.09%. On a $10,000 position that is $7 vs $9 annually, a gap of $2 per year that compounds over a long holding period. On income, IBGC currently yields 1.22% against 1.01% for SPY.
Holdings Overlap
IBGC and SPY share 0 holdings out of 509 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, IBGC or SPY?
IBGC has an expense ratio of 0.07% while SPY charges 0.09%. IBGC is the cheaper option. On a $10,000 investment, that is $2 per year of difference.
What is the holdings overlap between IBGC and SPY?
IBGC and SPY share 0 common holdings with a 0.0% weight overlap. Combined, they hold 509 unique securities.
Which pays a higher dividend, IBGC or SPY?
IBGC yields 1.22% while SPY yields 1.01%, so IBGC currently pays the higher dividend yield.
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