IGM vs. OEF
IGM (iShares Expanded Tech Sector ETF) and OEF (iShares S&P 100 ETF) are both exchange-traded funds - IGM is a Technology Equities fund tracking the S&P North American Expanded Technology Sector Index, while OEF is a Large Cap Blend Equities fund tracking the S&P 100 Index. Both are passively managed. Over the past 10 years, IGM returned 25.12%/yr vs 16.78%/yr for OEF. Their correlation of 0.85 suggests significant overlap in exposure. IGM charges 0.39%/yr vs 0.20%/yr for OEF.
Performance
IGM vs. OEF - Performance Comparison
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Returns By Period
In the year-to-date period, IGM achieves a 27.92% return, which is significantly higher than OEF's 8.71% return. Over the past 10 years, IGM has outperformed OEF with an annualized return of 25.12%, while OEF has yielded a comparatively lower 16.78% annualized return.
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%
OEF
- 1D
- 2.03%
- 1M
- 0.66%
- YTD
- 8.71%
- 6M
- 9.60%
- 1Y
- 28.24%
- 3Y*
- 23.02%
- 5Y*
- 15.42%
- 10Y*
- 16.78%
IGM vs. OEF - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
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% |
OEF iShares S&P 100 ETF | 8.71% | 19.80% | 30.74% | 32.71% | -21.03% | 29.18% | 21.21% | 31.87% | -4.16% | 21.82% |
Correlation
The correlation between IGM and OEF 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 | 0.91 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.93 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.91 |
Correlation (All Time) Calculated using the full available price history since Mar 19, 2001 | 0.85 |
The correlation between IGM and OEF has been stable across timeframes, ranging from 0.85 to 0.93 - a consistent structural relationship.
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Return for Risk
IGM vs. OEF — Risk / Return Rank
IGM
OEF
IGM vs. OEF - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Expanded Tech Sector ETF (IGM) and iShares S&P 100 ETF (OEF). 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.
| IGM | OEF | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.40 | ||
| Sortino ratioReturn per unit of downside risk | +0.26 | ||
| Omega ratioGain probability vs. loss probability | 1.42 | 1.39 | +0.03 |
| Calmar ratioReturn relative to maximum drawdown | 3.43 | 2.57 | +0.87 |
| Martin ratioReturn relative to average drawdown | 11.62 | 10.52 | +1.10 |
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Drawdowns
IGM vs. OEF - Drawdown Comparison
The maximum IGM drawdown since its inception was -65.59%, which is greater than OEF's maximum drawdown of -54.11%. Use the drawdown chart below to compare losses from any high point for IGM and OEF.
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Drawdown Indicators
| IGM | OEF | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -65.59% | -54.11% | -11.48% |
Max Drawdown (1Y)Largest decline over 1 year | -16.44% | -11.06% | -5.38% |
Max Drawdown (3Y)Largest decline over 3 years | -26.39% | -19.80% | -6.59% |
Max Drawdown (5Y)Largest decline over 5 years | -40.68% | -26.47% | -14.21% |
Max Drawdown (10Y)Largest decline over 10 years | -40.68% | -31.44% | -9.24% |
Current DrawdownCurrent decline from peak | -3.41% | -1.67% | -1.74% |
Average DrawdownAverage peak-to-trough decline | -15.22% | -11.74% | -3.48% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.85% | 2.69% | +2.16% |
Volatility
IGM vs. OEF - Volatility Comparison
iShares Expanded Tech Sector ETF (IGM) has a higher volatility of 10.54% compared to iShares S&P 100 ETF (OEF) at 4.96%. This indicates that IGM's price experiences larger fluctuations and is considered to be riskier than OEF based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IGM | OEF | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 10.54% | 4.96% | +5.58% |
Volatility (6M)Calculated over the trailing 6-month period | 18.42% | 10.42% | +8.00% |
Volatility (1Y)Calculated over the trailing 1-year period | 22.24% | 13.29% | +8.95% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 25.97% | 17.79% | +8.18% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 24.70% | 18.49% | +6.21% |
IGM vs. OEF - Expense Ratio Comparison
IGM has a 0.39% expense ratio, which is higher than OEF's 0.20% expense ratio.
Dividends
IGM vs. OEF - Dividend Comparison
IGM's dividend yield for the trailing twelve months is around 0.17%, less than OEF's 1.04% 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% |
OEF iShares S&P 100 ETF | 1.04% | 0.81% | 1.03% | 1.19% | 1.55% | 1.06% | 1.43% | 1.87% | 2.09% | 1.81% | 2.07% | 2.11% |
Frequently Asked Questions
IGM and OEF 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.
IGM has higher volatility (10.54%) compared to OEF (4.96%). In terms of maximum drawdown, IGM dropped -65.59% vs OEF's -54.11%.
On 10-year performance, IGM leads with 25.12% vs 16.78% for OEF. On fees, OEF is cheaper at 0.20% per year. On volatility, OEF has been the lower-risk option at 4.96%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 10-year period, IGM has performed better with a 25.12% return vs 16.78%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
OEF is cheaper with a 0.20% expense ratio, compared with 0.39% for IGM.
OEF has the higher dividend yield at 1.04%, compared with 0.17% for IGM.
IGM is categorized as Technology Equities, while OEF is Large Cap Blend Equities. IGM tracks S&P North American Expanded Technology Sector Index, while OEF tracks S&P 100 Index. Their fees differ too: 0.39% for IGM and 0.20% for OEF.
IGM currently has the higher Sharpe Ratio (2.54 vs 2.14), 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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