IOO vs. IGM

Last updated Jun 16, 2026

IOO (iShares Global 100 ETF) and IGM (iShares Expanded Tech Sector ETF) are both exchange-traded funds - IOO is a Global Equities fund tracking the S&P Global 100 Index (Net), while IGM is a Technology Equities fund tracking the S&P North American Expanded Technology Sector Index. Both are passively managed. Over the past 10 years, IOO returned 16.76%/yr vs 25.12%/yr for IGM. Their correlation of 0.81 suggests significant overlap in exposure. IOO charges 0.40%/yr vs 0.39%/yr for IGM.

Performance

IOO vs. IGM - Performance Comparison

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

Returns By Period

In the year-to-date period, IOO achieves a 10.84% return, which is significantly lower than IGM's 27.92% return. Over the past 10 years, IOO has underperformed IGM with an annualized return of 16.76%, while IGM has yielded a comparatively higher 25.12% annualized return.

IOO

• 1D: 1.54%
• 1M: -0.24%
• YTD: 10.84%
• 6M: 12.35%
• 1Y: 35.77%
• 3Y*: 23.86%
• 5Y*: 16.22%
• 10Y*: 16.76%

IGM

• 1D: 3.64%
• 1M: 7.10%
• YTD: 27.92%
• 6M: 29.29%
• 1Y: 56.16%
• 3Y*: 36.48%
• 5Y*: 20.96%
• 10Y*: 25.12%

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

IOO vs. IGM - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
IOO iShares Global 100 ETF	10.84%	27.02%	26.54%	27.71%	-16.34%	26.03%	18.61%	30.01%	-6.22%	23.56%
IGM iShares Expanded Tech Sector ETF	27.92%	26.76%	36.99%	60.68%	-35.83%	25.72%	45.11%	41.81%	2.26%	37.20%

Correlation

The correlation between IOO and IGM is 0.87, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.87
Correlation (3Y) Calculated over the trailing 3-year period	0.90
Correlation (5Y) Calculated over the trailing 5-year period	0.90
Correlation (10Y) Calculated over the trailing 10-year period	0.88
Correlation (All Time) Calculated using the full available price history since Mar 19, 2001	0.81

The correlation between IOO and IGM has been stable across timeframes, ranging from 0.81 to 0.90 - a consistent structural relationship.

IOO vs. IGM - Sectors Allocation Comparison

Sectors	IOO	IGM
Technology	47.0%	85.2%
Communication Services	10.8%	13.9%
Financial Services	9.2%	0.3%
Consumer Cyclical	8.4%	0.0%
Healthcare	8.4%	-
Consumer Defensive	5.6%	-
Industrials	4.8%	0.3%
Energy	3.6%	0.2%
Basic Materials	1.7%	-
Utilities	0.5%	-
Real Estate	0.2%	-

Return for Risk

IOO vs. IGM — Risk / Return Rank

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

IOO

IOO Risk / Return Rank: 84
IOO Sharpe Ratio Rank: 87
IOO Sortino Ratio Rank: 86
IOO Omega Ratio Rank: 85
IOO Calmar Ratio Rank: 78
IOO Martin Ratio Rank: 86

IGM

IGM Risk / Return Rank: 78
IGM Sharpe Ratio Rank: 87
IGM Sortino Ratio Rank: 79
IGM Omega Ratio Rank: 80
IGM Calmar Ratio Rank: 74
IGM Martin Ratio Rank: 70

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. IGM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Global 100 ETF (IOO) and iShares Expanded Tech Sector ETF (IGM). 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	IGM	Difference
Sharpe ratio: Return per unit of total volatility	2.55	2.54	+0.01
Sortino ratio: Return per unit of downside risk	3.43	3.13	+0.30
Omega ratio: Gain probability vs. loss probability	1.45	1.42	+0.03
Calmar ratio: Return relative to maximum drawdown	3.62	3.43	+0.18
Martin ratio: Return relative to average drawdown	16.01	11.62	+4.38

IOO vs. IGM - Sharpe Ratio Comparison

The current IOO Sharpe Ratio is 2.55, which is comparable to the IGM Sharpe Ratio of 2.54. The chart below compares the historical Sharpe Ratios of IOO and IGM, 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. IGM - Drawdown Comparison

The maximum IOO drawdown since its inception was -55.85%, smaller than the maximum IGM drawdown of -65.59%. Use the drawdown chart below to compare losses from any high point for IOO and IGM.

Drawdown Indicators

	IOO	IGM	Difference
Max Drawdown Largest peak-to-trough decline	-55.85%	-65.59%	+9.74%
Max Drawdown (1Y) Largest decline over 1 year	-9.94%	-16.44%	+6.50%
Max Drawdown (3Y) Largest decline over 3 years	-19.19%	-26.39%	+7.20%
Max Drawdown (5Y) Largest decline over 5 years	-23.52%	-40.68%	+17.16%
Max Drawdown (10Y) Largest decline over 10 years	-31.43%	-40.68%	+9.25%
Current Drawdown Current decline from peak	-2.57%	-3.41%	+0.84%
Average Drawdown Average peak-to-trough decline	-11.26%	-15.22%	+3.96%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.24%	4.85%	-2.61%

Volatility

IOO vs. IGM - Volatility Comparison

The current volatility for iShares Global 100 ETF (IOO) is 5.00%, while iShares Expanded Tech Sector ETF (IGM) has a volatility of 10.54%. This indicates that IOO experiences smaller price fluctuations and is considered to be less risky than IGM based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IOO	IGM	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.00%	10.54%	-5.54%
Volatility (6M) Calculated over the trailing 6-month period	11.40%	18.42%	-7.02%
Volatility (1Y) Calculated over the trailing 1-year period	14.10%	22.24%	-8.14%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.14%	25.97%	-8.83%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.81%	24.70%	-6.89%

IOO vs. IGM - Expense Ratio Comparison

IOO has a 0.40% expense ratio, which is higher than IGM's 0.39% expense ratio.

Dividends

IOO vs. IGM - Dividend Comparison

IOO's dividend yield for the trailing twelve months is around 1.35%, more than IGM's 0.17% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IGM iShares Expanded Tech Sector ETF	0.17%	0.17%	0.22%	0.33%	0.66%	0.16%	0.32%	0.50%	0.57%	0.57%	0.90%	0.79%
IOO iShares Global 100 ETF	1.35%	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 IGM in my portfolio?

IOO and IGM have a correlation of 0.87, 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 IGM?

IGM has higher volatility (10.54%) compared to IOO (5.00%). In terms of maximum drawdown, IOO dropped -55.85% vs IGM's -65.59%.

Which ETF is better, IOO or IGM?

On 10-year performance, IGM leads with 25.12% vs 16.76% for IOO. On fees, IGM is cheaper at 0.39% per year. On volatility, IOO has been the lower-risk option at 5.00%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, IOO or IGM?

Over the 10-year period, IGM has performed better with a 25.12% return vs 16.76%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, IOO or IGM?

IGM is cheaper with a 0.39% expense ratio, compared with 0.40% for IOO.

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

IOO has the higher dividend yield at 1.35%, compared with 0.17% for IGM.

What is the main difference between IOO and IGM?

IOO is categorized as Global Equities, while IGM is Technology Equities. IOO tracks S&P Global 100 Index (Net), while IGM tracks S&P North American Expanded Technology Sector Index. Their fees differ too: 0.40% for IOO and 0.39% for IGM.

Which has better risk-adjusted returns?

IOO currently has the higher Sharpe Ratio (2.55 vs 2.54), 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.