IOO vs. IYW
IOO (iShares Global 100 ETF) and IYW (iShares U.S. Technology ETF) are both exchange-traded funds - IOO is a Global Equities fund tracking the S&P Global 100 Index (Net), while IYW is a Technology Equities fund tracking the Russell 1000 Technology RIC 22.5/45 Capped Index. Both are passively managed. Over the past 10 years, IOO returned 16.66%/yr vs 25.63%/yr for IYW. A 0.80 correlation means they provide meaningful diversification when combined. IOO charges 0.40%/yr vs 0.38%/yr for IYW.
Performance
IOO vs. IYW - Performance Comparison
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Returns By Period
In the year-to-date period, IOO achieves a 9.16% return, which is significantly lower than IYW's 22.66% return. Over the past 10 years, IOO has underperformed IYW with an annualized return of 16.66%, while IYW has yielded a comparatively higher 25.63% annualized return.
IOO
- 1D
- 0.11%
- 1M
- -2.09%
- YTD
- 9.16%
- 6M
- 10.36%
- 1Y
- 31.99%
- 3Y*
- 23.85%
- 5Y*
- 15.85%
- 10Y*
- 16.66%
IYW
- 1D
- 0.61%
- 1M
- 1.73%
- YTD
- 22.66%
- 6M
- 23.40%
- 1Y
- 47.94%
- 3Y*
- 32.06%
- 5Y*
- 21.19%
- 10Y*
- 25.63%
IOO vs. IYW - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
IOO iShares Global 100 ETF | 9.16% | 27.02% | 26.54% | 27.71% | -16.34% | 26.03% | 18.61% | 30.01% | -6.22% | 23.56% |
IYW iShares U.S. Technology ETF | 22.66% | 25.38% | 30.25% | 65.44% | -34.83% | 35.44% | 47.45% | 46.64% | -0.93% | 36.60% |
Correlation
The correlation between IOO and IYW is 0.89, 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 | 0.89 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.92 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.91 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.88 |
Correlation (All Time) Calculated using the full available price history since Dec 8, 2000 | 0.80 |
The correlation between IOO and IYW shifts across timeframes, from 0.80 (all time) to 0.92 (3 years), reflecting how their relationship changes across market environments.
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Return for Risk
IOO vs. IYW — Risk / Return Rank
IOO
IYW
IOO vs. IYW - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Global 100 ETF (IOO) and iShares U.S. Technology ETF (IYW). 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 | IYW | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.04 | ||
| Sortino ratioReturn per unit of downside risk | +0.27 | ||
| Omega ratioGain probability vs. loss probability | 1.41 | 1.38 | +0.03 |
| Calmar ratioReturn relative to maximum drawdown | 3.23 | 2.70 | +0.53 |
| Martin ratioReturn relative to average drawdown | 14.35 | 8.68 | +5.67 |
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Drawdowns
IOO vs. IYW - Drawdown Comparison
The maximum IOO drawdown since its inception was -55.85%, smaller than the maximum IYW drawdown of -81.90%. Use the drawdown chart below to compare losses from any high point for IOO and IYW.
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Drawdown Indicators
| IOO | IYW | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -55.85% | -81.90% | +26.05% |
Max Drawdown (1Y)Largest decline over 1 year | -9.94% | -17.81% | +7.87% |
Max Drawdown (3Y)Largest decline over 3 years | -19.19% | -26.47% | +7.28% |
Max Drawdown (5Y)Largest decline over 5 years | -23.52% | -39.44% | +15.92% |
Max Drawdown (10Y)Largest decline over 10 years | -31.43% | -39.44% | +8.01% |
Current DrawdownCurrent decline from peak | -4.05% | -5.81% | +1.76% |
Average DrawdownAverage peak-to-trough decline | -11.26% | -34.62% | +23.36% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.24% | 5.54% | -3.30% |
Volatility
IOO vs. IYW - Volatility Comparison
The current volatility for iShares Global 100 ETF (IOO) is 4.82%, while iShares U.S. Technology ETF (IYW) has a volatility of 9.41%. This indicates that IOO experiences smaller price fluctuations and is considered to be less risky than IYW based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IOO | IYW | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.82% | 9.41% | -4.59% |
Volatility (6M)Calculated over the trailing 6-month period | 11.31% | 17.67% | -6.36% |
Volatility (1Y)Calculated over the trailing 1-year period | 14.07% | 21.47% | -7.40% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 17.12% | 26.07% | -8.95% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 17.80% | 25.20% | -7.40% |
IOO vs. IYW - Expense Ratio Comparison
IOO has a 0.40% expense ratio, which is higher than IYW's 0.38% expense ratio.
Dividends
IOO vs. IYW - Dividend Comparison
IOO's dividend yield for the trailing twelve months is around 0.84%, more than IYW's 0.11% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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% |
IYW iShares U.S. Technology ETF | 0.11% | 0.14% | 0.21% | 0.34% | 0.50% | 0.31% | 0.56% | 0.72% | 0.92% | 0.82% | 1.14% | 1.12% |
Frequently Asked Questions
IOO and IYW have a correlation of 0.89, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
IYW has higher volatility (9.41%) compared to IOO (4.82%). In terms of maximum drawdown, IOO dropped -55.85% vs IYW's -81.90%.
On 10-year performance, IYW leads with 25.63% vs 16.66% for IOO. On fees, IYW is cheaper at 0.38% per year. On volatility, IOO has been the lower-risk option at 4.82%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 10-year period, IYW has performed better with a 25.63% return vs 16.66%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
IYW is cheaper with a 0.38% expense ratio, compared with 0.40% for IOO.
IOO has the higher dividend yield at 0.84%, compared with 0.11% for IYW.
IOO is categorized as Global Equities, while IYW is Technology Equities. IOO tracks S&P Global 100 Index (Net), while IYW tracks Russell 1000 Technology RIC 22.5/45 Capped Index. Their fees differ too: 0.40% for IOO and 0.38% for IYW.
IOO currently has the higher Sharpe Ratio (2.28 vs 2.24), 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.
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