IOO vs. ACWV

Last updated Jul 17, 2026

IOO (iShares Global 100 ETF) and ACWV (iShares MSCI Global Min Vol Factor ETF) are both Global Equities funds from iShares - IOO tracks the S&P Global 100 Index (Net) while ACWV tracks the MSCI ACWI Minimum Volatility Index. Both are passively managed. Over the past 10 years, IOO returned 16.21%/yr vs 6.99%/yr for ACWV. A 0.75 correlation means they provide meaningful diversification when combined. IOO charges 0.40%/yr vs 0.20%/yr for ACWV.

Performance

IOO vs. ACWV - Performance Comparison

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

Returns By Period

In the year-to-date period, IOO achieves a 10.67% return, which is significantly higher than ACWV's 3.64% return. Over the past 10 years, IOO has outperformed ACWV with an annualized return of 16.21%, while ACWV has yielded a comparatively lower 6.99% annualized return.

IOO

• 1D: -0.89%
• 1M: 0.29%
• 6M: 9.29%
• YTD: 10.67%
• 1Y: 27.86%
• 3Y*: 23.22%
• 5Y*: 15.70%
• 10Y*: 16.21%

ACWV

• 1D: 0.82%
• 1M: 0.81%
• 6M: 2.67%
• YTD: 3.64%
• 1Y: 6.12%
• 3Y*: 9.83%
• 5Y*: 5.48%
• 10Y*: 6.99%

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

IOO vs. ACWV - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
IOO iShares Global 100 ETF	10.67%	27.02%	26.54%	27.71%	-16.34%	26.03%	18.61%	30.01%	-6.22%	23.56%
ACWV iShares MSCI Global Min Vol Factor ETF	3.64%	11.04%	11.38%	8.23%	-10.36%	13.97%	3.04%	21.04%	-1.42%	18.57%

Correlation

The correlation between IOO and ACWV is 0.40, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.40
Correlation (3Y) Calculated over the trailing 3-year period	0.48
Correlation (5Y) Calculated over the trailing 5-year period	0.64
Correlation (10Y) Calculated over the trailing 10-year period	0.72
Correlation (All Time) Calculated using the full available price history since Oct 20, 2011	0.75

Over the past year, the correlation between IOO and ACWV has dropped to 0.40 - well below their long-term average of 0.75, suggesting their price drivers have been diverging.

IOO vs. ACWV - Sectors Allocation Comparison

Sectors	IOO	ACWV
Technology	45.1%	25.8%
Communication Services	10.8%	11.9%
Financial Services	10.1%	13.2%
Healthcare	9.1%	13.0%
Consumer Cyclical	7.9%	5.1%
Consumer Defensive	5.8%	9.8%
Industrials	5.2%	8.1%
Energy	3.4%	3.7%
Basic Materials	1.7%	1.5%
Utilities	0.5%	7.3%
Real Estate	0.2%	0.6%

Return for Risk

IOO vs. ACWV — Risk / Return Rank

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

IOO

IOO Risk / Return Rank: 74
IOO Sharpe Ratio Rank: 77
IOO Sortino Ratio Rank: 75
IOO Omega Ratio Rank: 73
IOO Calmar Ratio Rank: 70
IOO Martin Ratio Rank: 74

ACWV

ACWV Risk / Return Rank: 25
ACWV Sharpe Ratio Rank: 25
ACWV Sortino Ratio Rank: 24
ACWV Omega Ratio Rank: 24
ACWV Calmar Ratio Rank: 25
ACWV Martin Ratio Rank: 26

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.

IOO vs. ACWV - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Global 100 ETF (IOO) and iShares MSCI Global Min Vol Factor ETF (ACWV). 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.

	IOO	ACWV	Difference
Sharpe ratio: Return per unit of total volatility	1.95	0.77	+1.18
Sortino ratio: Return per unit of downside risk	2.69	1.14	+1.54
Omega ratio: Gain probability vs. loss probability	1.34	1.14	+0.20
Calmar ratio: Return relative to maximum drawdown	2.82	0.97	+1.85
Martin ratio: Return relative to average drawdown	10.92	2.75	+8.18

IOO vs. ACWV - Sharpe Ratio Comparison

The current IOO Sharpe Ratio is 1.95, which is higher than the ACWV Sharpe Ratio of 0.77. The chart below compares the historical Sharpe Ratios of IOO and ACWV, 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

IOO vs. ACWV - Drawdown Comparison

The maximum IOO drawdown since its inception was -55.85%, which is greater than ACWV's maximum drawdown of -28.82%. Use the drawdown chart below to compare losses from any high point for IOO and ACWV.

Drawdown Indicators

	IOO	ACWV	Difference
Max Drawdown Largest peak-to-trough decline	-55.85%	-28.82%	-27.03%
Max Drawdown (1Y) Largest decline over 1 year	-9.94%	-6.37%	-3.57%
Max Drawdown (3Y) Largest decline over 3 years	-19.19%	-7.56%	-11.63%
Max Drawdown (5Y) Largest decline over 5 years	-23.52%	-18.14%	-5.38%
Max Drawdown (10Y) Largest decline over 10 years	-31.43%	-28.82%	-2.61%
Current Drawdown Current decline from peak	-2.73%	-1.70%	-1.03%
Average Drawdown Average peak-to-trough decline	-11.23%	-3.11%	-8.12%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.56%	2.23%	+0.33%

Volatility

IOO vs. ACWV - Volatility Comparison

iShares Global 100 ETF (IOO) has a higher volatility of 4.03% compared to iShares MSCI Global Min Vol Factor ETF (ACWV) at 3.29%. This indicates that IOO's price experiences larger fluctuations and is considered to be riskier than ACWV based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IOO	ACWV	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.03%	3.29%	+0.74%
Volatility (6M) Calculated over the trailing 6-month period	11.72%	6.28%	+5.44%
Volatility (1Y) Calculated over the trailing 1-year period	14.35%	8.05%	+6.30%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.19%	10.28%	+6.91%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.70%	12.29%	+5.41%

IOO vs. ACWV - Expense Ratio Comparison

IOO has a 0.40% expense ratio, which is higher than ACWV's 0.20% expense ratio.

Dividends

IOO vs. ACWV - Dividend Comparison

IOO's dividend yield for the trailing twelve months is around 0.84%, less than ACWV's 1.94% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ACWV iShares MSCI Global Min Vol Factor ETF	1.94%	2.09%	2.33%	2.41%	2.18%	1.92%	1.77%	2.54%	2.32%	2.04%	2.56%	2.28%
IOO iShares Global 100 ETF	0.84%	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 IOO and ACWV in my portfolio?

IOO and ACWV have a correlation of 0.40, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, IOO or ACWV?

IOO has higher volatility (4.03%) compared to ACWV (3.29%). In terms of maximum drawdown, IOO dropped -55.85% vs ACWV's -28.82%.

Which ETF is better, IOO or ACWV?

On 10-year performance, IOO leads with 16.21% vs 6.99% for ACWV. On fees, ACWV is cheaper at 0.20% per year. On volatility, ACWV has been the lower-risk option at 3.29%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, IOO or ACWV?

Over the 10-year period, IOO has performed better with a 16.21% return vs 6.99%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, IOO or ACWV?

ACWV is cheaper with a 0.20% expense ratio, compared with 0.40% for IOO.

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

ACWV has the higher dividend yield at 1.94%, compared with 0.84% for IOO.

What is the main difference between IOO and ACWV?

IOO tracks S&P Global 100 Index (Net), while ACWV tracks MSCI ACWI Minimum Volatility Index. Their fees differ too: 0.40% for IOO and 0.20% for ACWV.

Which has better risk-adjusted returns?

IOO currently has the higher Sharpe Ratio (1.95 vs 0.77), 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.