GMMF vs IVV
iShares Government Money Market ETF vs iShares Core S&P 500 ETF
Which is better, GMMF or IVV?
IVV has been ahead.
IVV has a lower expense ratio. IVV led over 1Y and the full window.
MarketXLS is not an investment adviser. This comparison is generated automatically from market data and is for information only. A Best mark means the better reading on that one measure, not a recommendation to buy.
Side-by-Side Comparison
| Metric | GMMF | IVV |
|---|---|---|
| Expense Ratio | 0.20% | 0.03%Best |
| AUM | $191M | $876.4B |
| Dividend Yield | 3.81% | 1.06% |
| Holdings | 146 | 508 |
| YTD Return | +2.25% | +11.57%Best |
| 1Y Return | +3.49% | +17.57%Best |
| 3Y Return (annualized) | - | +20.71% |
| 5Y Return (annualized) | - | +12.80% |
| Volatility (annualized) | 0.6%Best | 13.2% |
| Max Drawdown | -0.3%Best | -18.8% |
| $10,000 over 1.6 years | $10,610 | $12,784Best |
| Fund Family | iShares by BlackRock (US) | iShares by BlackRock (US) |
| Category | Money Market | Equity |
| Style | - | Large Cap Blend |
| Inception | Feb 4, 2025 | May 15, 2000 |
Not shown on this pair: Top 10 Weight.
Volatility and max drawdown, and the $10,000 over 1.6 years row, are measured over the window both funds cover: Feb 5, 2025 to Sep 10, 2026 (1.6 years).
GMMF vs IVV growth
Month-end closes. Both lines start at 0% in the first month shown, so the gap between them is the difference in growth across that window. The full view covers the 1.6 years both funds cover.
GMMF vs IVV Performance
iShares Government Money Market ETF (GMMF) is an ETF from iShares by BlackRock (US) and iShares Core S&P 500 ETF (IVV) is an ETF from iShares by BlackRock (US). Over the past year GMMF returned +3.49% while IVV returned +17.57%. Year to date, GMMF is up 2.25% versus a gain of 11.57% for IVV.
Past performance does not guarantee future results.
Risk: Volatility and Drawdowns
IVV has been the more volatile fund, with annualized monthly volatility of 13.2% compared with 0.6% for GMMF. 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 -0.3% for GMMF and -18.8% for IVV. Drawdown depth is what each fund did in the worst stretch of the window measured above.
The two funds' monthly returns correlate at 0.19. They move largely independently of each other.
Fees and Cost Over Time
GMMF charges 0.20% per year while IVV charges 0.03%. On a $10,000 position that is $20 vs $3 annually, a gap of $17 per year that compounds over a long holding period. On income, GMMF currently yields 3.81% against 1.06% for IVV.
Holdings Overlap
We hold position weights for 16 holdings in GMMF and 505 in IVV, totalling 5.7% and 100.0% of the two funds. The two books name no position in common, so there is no overlap percentage to show.
0 positions in common, counted across the 16 positions we hold weights for in GMMF and 505 in IVV, against full books of 146 and 508.
You are not choosing between two funds in isolation.
Whichever of GMMF and IVV you pick has to sit alongside everything else you own. Add the rest and see what the combination actually holds.
Free for up to 10 holdings. No account needed.
Frequently Asked Questions
Which is cheaper, GMMF or IVV?
GMMF has an expense ratio of 0.20% while IVV charges 0.03%. IVV is the cheaper option, by $17 a year on a $10,000 investment.
Which performed better, GMMF or IVV?
Over the past year GMMF returned +3.49% vs +17.57% for IVV, so IVV leads on 1-year performance. Over the longest common window we track (2 years), GMMF annualized +3.77% vs +16.59% for IVV. Past performance does not guarantee future results. This is information, not a recommendation.
Which is riskier, GMMF or IVV?
IVV has been the more volatile fund at 13.2% annualized versus 0.6% for GMMF. Worst drawdown: GMMF -0.3% vs IVV -18.8%.
Should I hold both GMMF and IVV?
GMMF and IVV have a monthly-return correlation of 0.19, so their returns are far enough apart for the mix to behave differently from either one alone. This is information, not a recommendation.
Which pays a higher dividend, GMMF or IVV?
GMMF yields 3.81% while IVV yields 1.06%, so GMMF currently pays the higher dividend yield.
Is IVV better than GMMF?
IVV has a lower expense ratio. IVV led over 1Y and the full window. Which one suits a particular account depends on what it is for. This is information, not a recommendation.