IBIK vs SPY
iShares iBonds Oct 2034 Term TIPS ETF vs State Street SPDR S&P 500 ETF Trust
Quick Verdict
SPY has a lower expense ratio. SPY delivered stronger 1-year returns. SPY offers more diversification with 503 holdings.
Side-by-Side Comparison
| Metric | IBIK | SPY | Winner |
|---|---|---|---|
| Expense Ratio | 0.10% | 0.09% | |
| AUM | $86M | $789.1B | |
| Dividend Yield | 3.74% | 1.01% | |
| Holdings | 3 | 505 | |
| YTD Return | +1.01% | +14.47% | |
| 1Y Return | +2.29% | +21.96% | |
| 3Y Return (annualized) | - | +21.70% | |
| 5Y Return (annualized) | - | +13.30% | |
| Volatility (annualized) | 4.7% | 15.3% | |
| Max Drawdown | -5.6% | -56.5% | |
| Fund Family | iShares by BlackRock (US) | State Street Investment Management | |
| Category | Fixed Income | Equity | |
| Inception | May 22, 2024 | Jan 22, 1993 |
IBIK vs SPY Performance
iShares iBonds Oct 2034 Term TIPS ETF (IBIK) 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 IBIK returned +2.29% while SPY returned +21.96%. Year to date, IBIK is up 1.01% versus a gain of 14.47% for SPY.
Risk: Volatility and Drawdowns
SPY has been the more volatile fund, with annualized monthly volatility of 15.3% compared with 4.7% for IBIK. 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 -5.6% for IBIK 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 0.31. They move independently enough that combining them can meaningfully diversify a portfolio.
Fees and Cost Over Time
IBIK charges 0.10% per year while SPY charges 0.09%. On a $10,000 position that is $10 vs $9 annually, a gap of $1 per year that compounds over a long holding period. On income, IBIK currently yields 3.74% against 1.01% for SPY.
Holdings Overlap
IBIK and SPY share 0 holdings out of 505 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, IBIK or SPY?
IBIK has an expense ratio of 0.10% while SPY charges 0.09%. SPY is the cheaper option. On a $10,000 investment, that is $1 per year of difference.
Which performed better, IBIK or SPY?
Over the past year IBIK returned +2.29% vs +21.96% for SPY, so SPY leads on 1-year performance. Over the longest common window we track (2 years), IBIK annualized +4.97% vs +8.87% for SPY. Past performance does not guarantee future results.
Which is riskier, IBIK or SPY?
SPY has been the more volatile fund at 15.3% annualized versus 4.7% for IBIK. Worst drawdown: IBIK -5.6% vs SPY -56.5%.
Should I hold both IBIK and SPY?
IBIK and SPY have a monthly-return correlation of 0.31, so combining them can provide real diversification depending on your allocation goals.
What is the holdings overlap between IBIK and SPY?
IBIK and SPY share 0 common holdings with a 0.0% weight overlap. Combined, they hold 505 unique securities.
Which pays a higher dividend, IBIK or SPY?
IBIK yields 3.74% while SPY yields 1.01%, so IBIK currently pays the higher dividend yield.
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