COSW vs VOO
Roundhill COST WeeklyPay ETF vs Vanguard S&P 500 ETF
Which is better, COSW or VOO?
VOO has been ahead.
VOO has a lower expense ratio. VOO led over 1Y.
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 | VOO |
|---|---|---|
| Expense Ratio | 0.99% | 0.03%Best |
| AUM | $11M | $1.0T |
| Dividend Yield | 28.62% | 1.06% |
| Holdings | 15 | 506 |
| YTD Return | +1.90% | +13.57%Best |
| 1Y Return | -9.96% | +17.55%Best |
| 3Y Return (annualized) | - | +22.46% |
| 5Y Return (annualized) | - | +13.28% |
| Volatility (annualized) | 22.6% | 13.2%Best |
| Fund Family | Roundhill Investments | Vanguard (US) |
| Category | Equity | Equity |
| Style | Large Cap Blend | Large Cap Blend |
| Inception | Oct 23, 2025 | Sep 7, 2010 |
Not shown on this pair: Max Drawdown, $10,000 over the window, Top 10 Weight.
COSW vs VOO 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 is available from the range buttons; it is not the opening view here because over the whole period one of these two funds moves so much further than the other that its line would sit flat on the axis.
COSW vs VOO Performance
Roundhill COST WeeklyPay ETF (COSW) is an ETF from Roundhill Investments and Vanguard S&P 500 ETF (VOO) is an ETF from Vanguard (US). Over the past year COSW returned -9.96% while VOO returned +17.55%. Year to date, COSW is up 1.90% versus a gain of 13.57% for VOO.
Past performance does not guarantee future results.
Risk: Volatility and Drawdowns
COSW has been the more volatile fund, with annualized monthly volatility of 22.6% compared with 13.2% for VOO. Lower volatility generally means a smoother ride, though it often comes with lower long-run returns.
The two funds' monthly returns correlate at -0.01. They move largely independently of each other.
Fees and Cost Over Time
COSW charges 0.99% per year while VOO 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 28.62% against 1.06% for VOO.
Holdings Overlap
At least 0.6% of VOO's money is in holdings COSW also owns.
Stated as a floor: for COSW, our book for it covers 13.3% 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 504 in VOO, against full books of 15 and 506.
Top Shared Holdings
| Stock | Weight in COSW | Weight in VOO | Difference |
|---|---|---|---|
| COSTCostco Wholesale Corp. | 4.95% | 0.63% | 4.32% |
You are not choosing between two funds in isolation.
Whichever of COSW and VOO 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 VOO?
COSW has an expense ratio of 0.99% while VOO charges 0.03%. VOO is the cheaper option, by $96 a year on a $10,000 investment.
Which performed better, COSW or VOO?
Over the past year COSW returned -9.96% vs +17.55% for VOO, so VOO leads on 1-year performance. Past performance does not guarantee future results. This is information, not a recommendation.
Which is riskier, COSW or VOO?
COSW has been the more volatile fund at 22.6% annualized versus 13.2% for VOO.
Should I hold both COSW and VOO?
COSW and VOO have a monthly-return correlation of -0.01, 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 VOO?
COSW yields 28.62% while VOO yields 1.06%, so COSW currently pays the higher dividend yield.
Is VOO better than COSW?
VOO has a lower expense ratio. VOO led over 1Y. Which one suits a particular account depends on what it is for. This is information, not a recommendation.