IVV vs MBB
IVV vs MBB
iShares Core S&P 500 ETF vs iShares MBS ETF
Quick Verdict
IVV has a lower expense ratio. IVV delivered stronger 1-year returns. MBB offers more diversification with 2339 holdings.
Side-by-Side Comparison
| Metric | IVV | MBB | Winner |
|---|---|---|---|
| Expense Ratio | 0.03% | 0.04% | |
| AUM | $865.2B | $39.1B | |
| Dividend Yield | 1.09% | 4.26% | |
| Holdings | 508 | 11,178 | |
| YTD Return | +13.52% | +0.15% | |
| 1Y Return | +23.63% | +3.44% | |
| 3Y Return (annualized) | +21.26% | +4.62% | |
| 5Y Return (annualized) | +13.52% | +0.13% | |
| Volatility (annualized) | 15.1% | 4.3% | |
| Max Drawdown | -56.5% | -18.4% | |
| Fund Family | iShares by BlackRock (US) | iShares by BlackRock (US) | |
| Category | Equity | Fixed Income | |
| Inception | May 15, 2000 | Mar 13, 2007 |
IVV vs MBB Performance
iShares Core S&P 500 ETF (IVV) is a ETF from iShares by BlackRock (US) and iShares MBS ETF (MBB) is a ETF from iShares by BlackRock (US). Over the past year IVV returned +23.63% while MBB returned +3.44%. Year to date, IVV is up 13.52% versus a gain of 0.15% for MBB.
Over three years, IVV compounded at +21.26% per year against +4.62% for MBB; over five years the annualized figures are +13.52% and +0.13% respectively. Across the full 19-year window we track, IVV has the edge at +7.04% annualized vs +0.47%. Past performance does not guarantee future results.
Risk: Volatility and Drawdowns
IVV has been the more volatile fund, with annualized monthly volatility of 15.1% compared with 4.3% for MBB. 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 IVV and -18.4% for MBB. 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 0.21. They move independently enough that combining them can meaningfully diversify a portfolio.
Fees and Cost Over Time
IVV charges 0.03% per year while MBB charges 0.04%. On a $10,000 position that is $3 vs $4 annually, a gap of $1 per year that compounds over a long holding period. On income, IVV currently yields 1.09% against 4.26% for MBB.
Holdings Overlap
IVV and MBB share 1 holdings out of 2843 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 IVV | Weight in MBB | Difference |
|---|---|---|---|
| XTSLA | 0.15% | 0.00% | 0.15% |
Frequently Asked Questions
Which is cheaper, IVV or MBB?
IVV has an expense ratio of 0.03% while MBB charges 0.04%. IVV is the cheaper option. On a $10,000 investment, that is $1 per year of difference.
Which performed better, IVV or MBB?
Over the past year IVV returned +23.63% vs +3.44% for MBB, so IVV leads on 1-year performance. Over the longest common window we track (19 years), IVV annualized +7.04% vs +0.47% for MBB. Past performance does not guarantee future results.
Which is riskier, IVV or MBB?
IVV has been the more volatile fund at 15.1% annualized versus 4.3% for MBB. Worst drawdown: IVV -56.5% vs MBB -18.4%.
Should I hold both IVV and MBB?
IVV and MBB have a monthly-return correlation of 0.21, so combining them can provide real diversification depending on your allocation goals.
What is the holdings overlap between IVV and MBB?
IVV and MBB share 1 common holdings with a 0.0% weight overlap. Combined, they hold 2843 unique securities.
Which pays a higher dividend, IVV or MBB?
IVV yields 1.09% while MBB yields 4.26%, so MBB currently pays the higher dividend yield.
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