COSW vs IVV
Roundhill COST WeeklyPay ETF vs iShares Core S&P 500 ETF
Which is better, COSW 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 | COSW | IVV |
|---|---|---|
| Expense Ratio | 0.99% | 0.03%Best |
| AUM | $12M | $850.0B |
| Dividend Yield | 27.62% | 1.09% |
| Holdings | 11 | 1,018 |
| YTD Return | +10.21% | +11.09%Best |
| 1Y Return | +0.62% | +11.71%Best |
| 3Y Return (annualized) | - | +21.10% |
| 5Y Return (annualized) | - | +11.55% |
| Volatility (annualized) | 23.5% | 12.9%Best |
| Max Drawdown | -28.1% | -8.9%Best |
| $10,000 over 1 years | $9,750 | $11,272Best |
| Fund Family | Roundhill Investments | iShares by BlackRock (US) |
| Category | Equity | Equity |
| Style | Large Cap Blend | Large Cap Blend |
| Inception | Oct 23, 2025 | May 15, 2000 |
Not shown on this pair: Top 10 Weight.
Volatility and max drawdown, and the $10,000 over 1 years row, are measured over the window both funds cover: Oct 23, 2025 to Nov 9, 2026 (1 years).
COSW 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 years both funds cover.
COSW vs IVV Performance
Roundhill COST WeeklyPay ETF (COSW) is an ETF from Roundhill Investments and iShares Core S&P 500 ETF (IVV) is an ETF from iShares by BlackRock (US). Over the past year COSW returned +0.62% while IVV returned +11.71%. Year to date, COSW is up 10.21% versus a gain of 11.09% for IVV.
Past performance does not guarantee future results.
Risk: Volatility and Drawdowns
COSW has been the more volatile fund, with annualized monthly volatility of 23.5% compared with 12.9% for IVV. 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 -28.1% for COSW and -8.9% 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 -0.10. They move largely independently of each other.
Fees and Cost Over Time
COSW charges 0.99% per year while IVV charges 0.03%. On a $10,000 position that is $99 vs $3 annually, a gap of $96 per year that compounds over a long holding period. On income, COSW currently yields 27.62% against 1.09% for IVV.
Holdings Overlap
At least 0.7% of IVV's money is in holdings COSW also owns.
Stated as a floor: for COSW, our book for it covers 13.1% of that fund, so a holding it does not list is one we cannot count as shared. The real figure is this or higher.
We cannot see either book well enough to say how much of this pair is duplicated.
1 positions in common, counted across the 2 positions we hold weights for in COSW and 505 in IVV, against full books of 11 and 1,018.
Top Shared Holdings
| Stock | Weight in COSW | Weight in IVV | Difference |
|---|---|---|---|
| COSTCostco Wholesale Corp. | 5.09% | 0.65% | 4.44% |
You are not choosing between two funds in isolation.
Whichever of COSW 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, COSW or IVV?
COSW has an expense ratio of 0.99% while IVV charges 0.03%. IVV is the cheaper option, by $96 a year on a $10,000 investment.
Which performed better, COSW or IVV?
Over the past year COSW returned +0.62% vs +11.71% for IVV, so IVV leads on 1-year performance. Over the longest common window we track (1 years), COSW annualized -2.50% vs +12.72% for IVV. Past performance does not guarantee future results. This is information, not a recommendation.
Which is riskier, COSW or IVV?
COSW has been the more volatile fund at 23.5% annualized versus 12.9% for IVV. Worst drawdown: COSW -28.1% vs IVV -8.9%.
Should I hold both COSW and IVV?
COSW and IVV have a monthly-return correlation of -0.10, 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, COSW or IVV?
COSW yields 27.62% while IVV yields 1.09%, so COSW currently pays the higher dividend yield.
Is IVV better than COSW?
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.