EWW vs. IOO

Last updated Jun 4, 2026

EWW (iShares MSCI Mexico ETF) and IOO (iShares Global 100 ETF) are both exchange-traded funds - EWW is a Latin America Equities fund tracking the MSCI Mexico IMI 25/50 Index, while IOO is a Global Equities fund tracking the S&P Global 100 Index (Net). Both are passively managed. Over the past 10 years, EWW returned 7.35%/yr vs 16.70%/yr for IOO. A 0.62 correlation means they provide meaningful diversification when combined. EWW charges 0.49%/yr vs 0.40%/yr for IOO.

Performance

EWW vs. IOO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares MSCI Mexico ETF (EWW) and iShares Global 100 ETF (IOO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both stocks are quite close, with EWW having a 12.62% return and IOO slightly lower at 12.26%. Over the past 10 years, EWW has underperformed IOO with an annualized return of 7.35%, while IOO has yielded a comparatively higher 16.70% annualized return.

EWW

• 1D: -1.26%
• 1M: 3.21%
• YTD: 12.62%
• 6M: 16.29%
• 1Y: 34.15%
• 3Y*: 12.42%
• 5Y*: 13.49%
• 10Y*: 7.35%

IOO

• 1D: -1.33%
• 1M: 5.37%
• YTD: 12.26%
• 6M: 12.43%
• 1Y: 38.24%
• 3Y*: 25.48%
• 5Y*: 16.68%
• 10Y*: 16.70%

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

EWW vs. IOO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
EWW iShares MSCI Mexico ETF	12.62%	53.65%	-28.22%	40.32%	1.24%	20.27%	-3.06%	12.64%	-14.58%	14.47%
IOO iShares Global 100 ETF	12.26%	27.02%	26.54%	27.71%	-16.34%	26.03%	18.61%	30.01%	-6.22%	23.56%

Correlation

The correlation between EWW and IOO is 0.48, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.48
Correlation (3Y) Calculated over the trailing 3-year period	0.47
Correlation (5Y) Calculated over the trailing 5-year period	0.51
Correlation (10Y) Calculated over the trailing 10-year period	0.53
Correlation (All Time) Calculated using the full available price history since Dec 11, 2000	0.62

The correlation between EWW and IOO shifts across timeframes, from 0.47 (3 years) to 0.62 (all time), reflecting how their relationship changes across market environments.

EWW vs. IOO - Sectors Allocation Comparison

Sectors	EWW	IOO
Consumer Defensive	24.9%	5.6%
Basic Materials	23.7%	1.7%
Financial Services	18.1%	9.1%
Industrials	13.1%	4.8%
Communication Services	10.4%	11.0%
Real Estate	7.7%	0.2%
Consumer Cyclical	1.4%	8.4%
Healthcare	0.5%	8.4%
Energy	-	3.6%
Technology	-	46.2%
Utilities	-	0.5%

Return for Risk

EWW vs. IOO — Risk / Return Rank

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

EWW

EWW Risk / Return Rank: 47
EWW Sharpe Ratio Rank: 46
EWW Sortino Ratio Rank: 45
EWW Omega Ratio Rank: 44
EWW Calmar Ratio Rank: 49
EWW Martin Ratio Rank: 52

IOO

IOO Risk / Return Rank: 82
IOO Sharpe Ratio Rank: 85
IOO Sortino Ratio Rank: 84
IOO Omega Ratio Rank: 82
IOO Calmar Ratio Rank: 75
IOO Martin Ratio Rank: 85

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.

EWW vs. IOO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares MSCI Mexico ETF (EWW) and iShares Global 100 ETF (IOO). 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.

	EWW	IOO	Difference
Sharpe ratio Return per unit of total volatility	1.62	2.84	-1.22
Sortino ratio Return per unit of downside risk	2.27	3.85	-1.58
Omega ratio Gain probability vs. loss probability	1.29	1.50	-0.22
Calmar ratio Return relative to maximum drawdown	2.45	3.87	-1.41
Martin ratio Return relative to average drawdown	9.08	17.94	-8.87
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

EWW vs. IOO - Sharpe Ratio Comparison

The current EWW Sharpe Ratio is 1.62, which is lower than the IOO Sharpe Ratio of 2.84. The chart below compares the historical Sharpe Ratios of EWW and IOO, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	EWW	IOO	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.62	2.84	-1.22
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.60	0.98	-0.38
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.29	0.94	-0.65
Sharpe Ratio (All Time) Calculated using the full available price history	0.30	0.39	-0.09

Drawdowns

EWW vs. IOO - Drawdown Comparison

The maximum EWW drawdown since its inception was -64.94%, which is greater than IOO's maximum drawdown of -55.85%. Use the drawdown chart below to compare losses from any high point for EWW and IOO.

Drawdown Indicators

	EWW	IOO	Difference
Max Drawdown Largest peak-to-trough decline	-64.94%	-55.85%	-9.09%
Max Drawdown (1Y) Largest decline over 1 year	-13.98%	-9.94%	-4.04%
Max Drawdown (3Y) Largest decline over 3 years	-31.17%	-19.19%	-11.98%
Max Drawdown (5Y) Largest decline over 5 years	-31.17%	-23.52%	-7.65%
Max Drawdown (10Y) Largest decline over 10 years	-53.62%	-31.43%	-22.19%
Current Drawdown Current decline from peak	-3.88%	-1.33%	-2.55%
Average Drawdown Average peak-to-trough decline	-18.52%	-11.27%	-7.25%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.77%	2.14%	+1.63%

Volatility

EWW vs. IOO - Volatility Comparison

iShares MSCI Mexico ETF (EWW) has a higher volatility of 5.79% compared to iShares Global 100 ETF (IOO) at 3.81%. This indicates that EWW's price experiences larger fluctuations and is considered to be riskier than IOO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	EWW	IOO	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.79%	3.81%	+1.98%
Volatility (6M) Calculated over the trailing 6-month period	17.75%	10.59%	+7.16%
Volatility (1Y) Calculated over the trailing 1-year period	21.15%	13.54%	+7.61%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.51%	17.04%	+5.47%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	25.39%	17.78%	+7.61%

EWW vs. IOO - Expense Ratio Comparison

EWW has a 0.49% expense ratio, which is higher than IOO's 0.40% expense ratio.

Dividends

EWW vs. IOO - Dividend Comparison

EWW's dividend yield for the trailing twelve months is around 3.09%, more than IOO's 0.82% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
EWW iShares MSCI Mexico ETF	3.09%	3.48%	4.39%	2.19%	3.64%	2.06%	1.43%	2.92%	2.30%	2.22%	1.77%	2.34%
IOO iShares Global 100 ETF	0.82%	0.92%	1.08%	1.49%	2.00%	1.53%	1.49%	2.02%	2.54%	2.23%	2.75%	2.89%

Frequently Asked Questions

Can I hold both EWW and IOO in my portfolio?

EWW and IOO have a correlation of 0.48, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, EWW or IOO?

EWW has higher volatility (5.79%) compared to IOO (3.81%). In terms of maximum drawdown, EWW dropped -64.94% vs IOO's -55.85%.

Which ETF is better, EWW or IOO?

On 10-year performance, IOO leads with 16.70% vs 7.35% for EWW. On fees, IOO is cheaper at 0.40% per year. On volatility, IOO has been the lower-risk option at 3.81%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, EWW or IOO?

Over the 10-year period, IOO has performed better with a 16.70% return vs 7.35%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, EWW or IOO?

IOO is cheaper with a 0.40% expense ratio, compared with 0.49% for EWW.

Which ETF pays a higher dividend yield, EWW or IOO?

EWW has the higher dividend yield at 3.09%, compared with 0.82% for IOO.

What is the main difference between EWW and IOO?

EWW is categorized as Latin America Equities, while IOO is Global Equities. EWW tracks MSCI Mexico IMI 25/50 Index, while IOO tracks S&P Global 100 Index (Net). Their fees differ too: 0.49% for EWW and 0.40% for IOO.

Which has better risk-adjusted returns?

IOO currently has the higher Sharpe Ratio (2.84 vs 1.62), 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.