EWS vs. VOO

Last updated Jun 24, 2026

EWS (iShares MSCI Singapore ETF) and VOO (Vanguard S&P 500 ETF) are both exchange-traded funds - EWS is a Asia Pacific Equities fund tracking the MSCI Singapore Index, while VOO is a S&P 500 fund tracking the S&P 500 Index. Both are passively managed. Over the past 10 years, EWS returned 8.34%/yr vs 15.61%/yr for VOO. A 0.63 correlation means they provide meaningful diversification when combined. EWS charges 0.50%/yr vs 0.03%/yr for VOO.

Performance

EWS vs. VOO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares MSCI Singapore ETF (EWS) and Vanguard S&P 500 ETF (VOO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, EWS achieves a 9.65% return, which is significantly higher than VOO's 8.19% return. Over the past 10 years, EWS has underperformed VOO with an annualized return of 8.34%, while VOO has yielded a comparatively higher 15.61% annualized return.

EWS

• 1D: -0.54%
• 1M: 2.36%
• YTD: 9.65%
• 6M: 9.41%
• 1Y: 22.70%
• 3Y*: 22.62%
• 5Y*: 10.27%
• 10Y*: 8.34%

VOO

• 1D: -1.42%
• 1M: -1.34%
• YTD: 8.19%
• 6M: 7.24%
• 1Y: 23.69%
• 3Y*: 20.78%
• 5Y*: 13.13%
• 10Y*: 15.61%

*Multi-year figures are annualized to reflect compound growth (CAGR)

EWS vs. VOO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
EWS iShares MSCI Singapore ETF	9.65%	31.35%	22.10%	6.15%	-9.80%	5.47%	-8.47%	14.54%	-11.34%	34.78%
VOO Vanguard S&P 500 ETF	8.19%	17.82%	24.98%	26.32%	-18.17%	28.79%	18.32%	31.37%	-4.50%	21.77%

Correlation

The correlation between EWS and VOO is 0.59, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.59
Correlation (3Y) Calculated over the trailing 3-year period	0.56
Correlation (5Y) Calculated over the trailing 5-year period	0.60
Correlation (10Y) Calculated over the trailing 10-year period	0.60
Correlation (All Time) Calculated using the full available price history since Sep 9, 2010	0.63

The correlation between EWS and VOO has been stable across timeframes, ranging from 0.56 to 0.63 - a consistent structural relationship.

EWS vs. VOO - Sectors Allocation Comparison

Sectors	EWS	VOO
Financial Services	51.6%	10.9%
Industrials	18.1%	7.6%
Real Estate	8.9%	1.8%
Consumer Cyclical	4.6%	9.8%
Technology	4.5%	39.1%
Utilities	4.3%	2.5%
Consumer Defensive	4.1%	4.5%
Communication Services	3.9%	10.5%
Basic Materials	-	1.7%
Energy	-	3.2%
Healthcare	-	8.3%

Return for Risk

EWS vs. VOO — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

EWS

EWS Risk / Return Rank: 48
EWS Sharpe Ratio Rank: 44
EWS Sortino Ratio Rank: 44
EWS Omega Ratio Rank: 43
EWS Calmar Ratio Rank: 62
EWS Martin Ratio Rank: 45

VOO

VOO Risk / Return Rank: 59
VOO Sharpe Ratio Rank: 59
VOO Sortino Ratio Rank: 56
VOO Omega Ratio Rank: 58
VOO Calmar Ratio Rank: 56
VOO Martin Ratio Rank: 67

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

EWS vs. VOO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares MSCI Singapore ETF (EWS) and Vanguard S&P 500 ETF (VOO). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	EWS	VOO	Difference
Sharpe ratio: Return per unit of total volatility	1.49	1.91	-0.42
Sortino ratio: Return per unit of downside risk	2.14	2.60	-0.46
Omega ratio: Gain probability vs. loss probability	1.27	1.35	-0.08
Calmar ratio: Return relative to maximum drawdown	2.92	2.67	+0.24
Martin ratio: Return relative to average drawdown	7.04	11.96	-4.92

EWS vs. VOO - Sharpe Ratio Comparison

The current EWS Sharpe Ratio is 1.49, which is comparable to the VOO Sharpe Ratio of 1.91. The chart below compares the historical Sharpe Ratios of EWS and VOO, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

EWS vs. VOO - Drawdown Comparison

The maximum EWS drawdown since its inception was -75.13%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for EWS and VOO.

Drawdown Indicators

	EWS	VOO	Difference
Max Drawdown Largest peak-to-trough decline	-75.13%	-33.99%	-41.14%
Max Drawdown (1Y) Largest decline over 1 year	-7.82%	-8.90%	+1.08%
Max Drawdown (3Y) Largest decline over 3 years	-16.34%	-18.69%	+2.35%
Max Drawdown (5Y) Largest decline over 5 years	-29.06%	-24.52%	-4.54%
Max Drawdown (10Y) Largest decline over 10 years	-40.84%	-33.99%	-6.85%
Current Drawdown Current decline from peak	-0.54%	-3.14%	+2.60%
Average Drawdown Average peak-to-trough decline	-21.96%	-3.68%	-18.28%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.23%	1.99%	+1.24%

Volatility

EWS vs. VOO - Volatility Comparison

iShares MSCI Singapore ETF (EWS) has a higher volatility of 5.13% compared to Vanguard S&P 500 ETF (VOO) at 4.83%. This indicates that EWS's price experiences larger fluctuations and is considered to be riskier than VOO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	EWS	VOO	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.13%	4.83%	+0.30%
Volatility (6M) Calculated over the trailing 6-month period	12.17%	9.82%	+2.35%
Volatility (1Y) Calculated over the trailing 1-year period	15.28%	12.46%	+2.82%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.32%	16.91%	+0.41%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.98%	18.02%	-0.04%

EWS vs. VOO - Expense Ratio Comparison

EWS has a 0.50% expense ratio, which is higher than VOO's 0.03% expense ratio.

Dividends

EWS vs. VOO - Dividend Comparison

EWS's dividend yield for the trailing twelve months is around 4.00%, more than VOO's 1.05% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
EWS iShares MSCI Singapore ETF	4.00%	4.10%	4.28%	6.50%	2.56%	6.00%	2.68%	4.70%	4.21%	3.46%	3.96%	4.20%
VOO Vanguard S&P 500 ETF	1.05%	1.13%	1.24%	1.46%	1.69%	1.25%	1.54%	1.88%	2.06%	1.78%	2.02%	2.10%

Frequently Asked Questions

Can I hold both EWS and VOO in my portfolio?

EWS and VOO have a correlation of 0.59, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, EWS or VOO?

EWS has higher volatility (5.13%) compared to VOO (4.83%). In terms of maximum drawdown, EWS dropped -75.13% vs VOO's -33.99%.

Which ETF is better, EWS or VOO?

On 10-year performance, VOO leads with 15.61% vs 8.34% for EWS. On fees, VOO is cheaper at 0.03% per year. On volatility, VOO has been the lower-risk option at 4.83%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, EWS or VOO?

Over the 10-year period, VOO has performed better with a 15.61% return vs 8.34%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, EWS or VOO?

VOO is cheaper with a 0.03% expense ratio, compared with 0.50% for EWS.

Which ETF pays a higher dividend yield, EWS or VOO?

EWS has the higher dividend yield at 4.00%, compared with 1.05% for VOO.

What is the main difference between EWS and VOO?

EWS is categorized as Asia Pacific Equities, while VOO is S&P 500. EWS tracks MSCI Singapore Index, while VOO tracks S&P 500 Index. They also come from different issuers: iShares and Vanguard. Their fees differ too: 0.50% for EWS and 0.03% for VOO.

Which has better risk-adjusted returns?

VOO currently has the higher Sharpe Ratio (1.91 vs 1.49), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.